/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_label49+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:14:11,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:14:11,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:14:11,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:14:11,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:14:11,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:14:11,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:14:11,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:14:11,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:14:11,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:14:11,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:14:11,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:14:11,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:14:11,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:14:11,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:14:11,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:14:11,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:14:11,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:14:11,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:14:11,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:14:11,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:14:11,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:14:11,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:14:11,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:14:11,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 07:14:11,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 07:14:11,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 07:14:11,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 07:14:11,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 07:14:11,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 07:14:11,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:14:11,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:14:11,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:14:11,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:14:11,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:14:11,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:14:11,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:14:11,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:14:11,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:14:11,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:14:11,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:14:11,442 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 07:14:11,471 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:14:11,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:14:11,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:14:11,472 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:14:11,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:14:11,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:14:11,473 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:14:11,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:14:11,474 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:14:11,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:14:11,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:14:11,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:14:11,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:14:11,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:14:11,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:14:11,478 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:14:11,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:14:11,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:14:11,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:14:11,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:14:11,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:14:11,653 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:14:11,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c [2022-01-11 07:14:11,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d45ce39c/0bd6e75c92644c1894adc2ec75ba56fd/FLAGa9453f88f [2022-01-11 07:14:12,351 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:14:12,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.08.cil-1.c [2022-01-11 07:14:12,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d45ce39c/0bd6e75c92644c1894adc2ec75ba56fd/FLAGa9453f88f [2022-01-11 07:14:12,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d45ce39c/0bd6e75c92644c1894adc2ec75ba56fd [2022-01-11 07:14:12,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:14:12,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:14:12,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:14:12,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:14:12,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:14:12,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:14:12" (1/1) ... [2022-01-11 07:14:12,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e31089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:12, skipping insertion in model container [2022-01-11 07:14:12,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:14:12" (1/1) ... [2022-01-11 07:14:12,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:14:12,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:14:14,085 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_label49+token_ring.08.cil-1.c[380593,380606] [2022-01-11 07:14:14,109 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_label49+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:14:14,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:14:14,297 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:14:14,837 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_label49+token_ring.08.cil-1.c[380593,380606] [2022-01-11 07:14:14,841 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_label49+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:14:14,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:14:14,931 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:14:14,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14 WrapperNode [2022-01-11 07:14:14,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:14:14,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:14:14,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:14:14,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:14:14,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,321 INFO L137 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 60, calls inlined = 167, statements flattened = 14693 [2022-01-11 07:14:15,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:14:15,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:14:15,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:14:15,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:14:15,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:14:15,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:14:15,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:14:15,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:14:15,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (1/1) ... [2022-01-11 07:14:15,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:14:15,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:14:15,897 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 07:14:15,938 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 07:14:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:14:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:14:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:14:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:14:16,174 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:14:16,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:14:23,198 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:14:23,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:14:23,229 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-11 07:14:23,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:14:23 BoogieIcfgContainer [2022-01-11 07:14:23,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:14:23,236 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:14:23,236 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:14:23,237 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:14:23,239 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:14:23" (1/1) ... [2022-01-11 07:14:24,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:14:24 BasicIcfg [2022-01-11 07:14:24,618 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:14:24,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:14:24,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:14:24,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:14:24,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:14:12" (1/4) ... [2022-01-11 07:14:24,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6437b40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:14:24, skipping insertion in model container [2022-01-11 07:14:24,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:14:14" (2/4) ... [2022-01-11 07:14:24,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6437b40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:14:24, skipping insertion in model container [2022-01-11 07:14:24,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:14:23" (3/4) ... [2022-01-11 07:14:24,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6437b40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:14:24, skipping insertion in model container [2022-01-11 07:14:24,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:14:24" (4/4) ... [2022-01-11 07:14:24,624 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.08.cil-1.cTransformedIcfg [2022-01-11 07:14:24,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:14:24,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 07:14:24,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:14:24,680 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 07:14:24,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 07:14:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:24,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:24,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:24,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:24,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:24,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash 267453931, now seen corresponding path program 1 times [2022-01-11 07:14:24,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:24,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121982852] [2022-01-11 07:14:24,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:24,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:25,074 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 07:14:25,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:25,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121982852] [2022-01-11 07:14:25,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121982852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:25,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:25,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:25,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401370670] [2022-01-11 07:14:25,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:25,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:25,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:25,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:25,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:25,118 INFO L87 Difference]: Start difference. First operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 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 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:25,393 INFO L93 Difference]: Finished difference Result 6348 states and 11162 transitions. [2022-01-11 07:14:25,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:25,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:25,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:25,422 INFO L225 Difference]: With dead ends: 6348 [2022-01-11 07:14:25,423 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:25,433 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 07:14:25,436 INFO L933 BasicCegarLoop]: 5499 mSDtfsCounter, 5488 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5488 SdHoareTripleChecker+Valid, 5499 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 07:14:25,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5488 Valid, 5499 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7459858702633269) internal successors, (5437), 3115 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5437 transitions. [2022-01-11 07:14:25,574 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5437 transitions. Word has length 121 [2022-01-11 07:14:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:25,574 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5437 transitions. [2022-01-11 07:14:25,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5437 transitions. [2022-01-11 07:14:25,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:25,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:25,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:25,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:14:25,579 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:25,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:25,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1683429173, now seen corresponding path program 1 times [2022-01-11 07:14:25,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:25,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458083185] [2022-01-11 07:14:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:25,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:25,656 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 07:14:25,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:25,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458083185] [2022-01-11 07:14:25,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458083185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:25,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:25,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:25,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630247334] [2022-01-11 07:14:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:25,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:25,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:25,659 INFO L87 Difference]: Start difference. First operand 3116 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:25,728 INFO L93 Difference]: Finished difference Result 4094 states and 6888 transitions. [2022-01-11 07:14:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:25,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:25,740 INFO L225 Difference]: With dead ends: 4094 [2022-01-11 07:14:25,741 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:25,745 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 07:14:25,747 INFO L933 BasicCegarLoop]: 5427 mSDtfsCounter, 5415 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 5427 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 07:14:25,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 5427 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7443802183686576) internal successors, (5432), 3115 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5432 transitions. [2022-01-11 07:14:25,807 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5432 transitions. Word has length 121 [2022-01-11 07:14:25,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:25,809 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5432 transitions. [2022-01-11 07:14:25,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5432 transitions. [2022-01-11 07:14:25,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:25,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:25,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:25,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:14:25,820 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -637982229, now seen corresponding path program 1 times [2022-01-11 07:14:25,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318503980] [2022-01-11 07:14:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:25,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:25,895 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 07:14:25,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:25,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318503980] [2022-01-11 07:14:25,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318503980] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:25,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:25,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:25,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402682200] [2022-01-11 07:14:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:25,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:25,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:25,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:25,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:25,899 INFO L87 Difference]: Start difference. First operand 3116 states and 5432 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:25,958 INFO L93 Difference]: Finished difference Result 4093 states and 6877 transitions. [2022-01-11 07:14:25,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:25,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:25,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:25,969 INFO L225 Difference]: With dead ends: 4093 [2022-01-11 07:14:25,969 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:25,975 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 07:14:25,977 INFO L933 BasicCegarLoop]: 5422 mSDtfsCounter, 5409 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 5422 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 07:14:25,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 5422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:25,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:26,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:26,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7427745664739884) internal successors, (5427), 3115 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5427 transitions. [2022-01-11 07:14:26,043 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5427 transitions. Word has length 121 [2022-01-11 07:14:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:26,043 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5427 transitions. [2022-01-11 07:14:26,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5427 transitions. [2022-01-11 07:14:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:26,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:26,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:26,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:14:26,045 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:26,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash 504120523, now seen corresponding path program 1 times [2022-01-11 07:14:26,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:26,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516578116] [2022-01-11 07:14:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:26,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:26,103 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 07:14:26,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:26,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516578116] [2022-01-11 07:14:26,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516578116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:26,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:26,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:26,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671961241] [2022-01-11 07:14:26,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:26,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:26,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:26,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:26,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:26,106 INFO L87 Difference]: Start difference. First operand 3116 states and 5427 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:26,166 INFO L93 Difference]: Finished difference Result 4091 states and 6864 transitions. [2022-01-11 07:14:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:26,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:26,176 INFO L225 Difference]: With dead ends: 4091 [2022-01-11 07:14:26,176 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:26,180 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 07:14:26,184 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 5402 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 5417 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 07:14:26,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 5417 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:26,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:26,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7411689145793192) internal successors, (5422), 3115 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5422 transitions. [2022-01-11 07:14:26,241 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5422 transitions. Word has length 121 [2022-01-11 07:14:26,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:26,241 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5422 transitions. [2022-01-11 07:14:26,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5422 transitions. [2022-01-11 07:14:26,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:26,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:26,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:26,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:14:26,243 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:26,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1743296427, now seen corresponding path program 1 times [2022-01-11 07:14:26,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:26,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085180671] [2022-01-11 07:14:26,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:26,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:26,498 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 07:14:26,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:26,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085180671] [2022-01-11 07:14:26,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085180671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:26,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:26,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:26,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110413861] [2022-01-11 07:14:26,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:26,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:26,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:26,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:26,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:26,500 INFO L87 Difference]: Start difference. First operand 3116 states and 5422 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:26,582 INFO L93 Difference]: Finished difference Result 4090 states and 6853 transitions. [2022-01-11 07:14:26,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:26,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:26,591 INFO L225 Difference]: With dead ends: 4090 [2022-01-11 07:14:26,591 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:26,593 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 07:14:26,594 INFO L933 BasicCegarLoop]: 5412 mSDtfsCounter, 5396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5412 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 07:14:26,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5412 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:26,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73956326268465) internal successors, (5417), 3115 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5417 transitions. [2022-01-11 07:14:26,672 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5417 transitions. Word has length 121 [2022-01-11 07:14:26,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:26,674 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5417 transitions. [2022-01-11 07:14:26,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5417 transitions. [2022-01-11 07:14:26,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:26,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:26,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:26,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:14:26,677 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:26,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175179, now seen corresponding path program 1 times [2022-01-11 07:14:26,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:26,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061217553] [2022-01-11 07:14:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:26,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:26,735 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 07:14:26,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:26,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061217553] [2022-01-11 07:14:26,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061217553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:26,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:26,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:26,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212369519] [2022-01-11 07:14:26,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:26,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:26,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:26,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:26,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:26,737 INFO L87 Difference]: Start difference. First operand 3116 states and 5417 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:26,803 INFO L93 Difference]: Finished difference Result 4089 states and 6842 transitions. [2022-01-11 07:14:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:26,813 INFO L225 Difference]: With dead ends: 4089 [2022-01-11 07:14:26,813 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:26,815 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 07:14:26,816 INFO L933 BasicCegarLoop]: 5407 mSDtfsCounter, 5390 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 5407 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 07:14:26,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 5407 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:26,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7379576107899808) internal successors, (5412), 3115 states have internal predecessors, (5412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5412 transitions. [2022-01-11 07:14:26,884 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5412 transitions. Word has length 121 [2022-01-11 07:14:26,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:26,884 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5412 transitions. [2022-01-11 07:14:26,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5412 transitions. [2022-01-11 07:14:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:26,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:26,885 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:26,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:14:26,886 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash 2052715435, now seen corresponding path program 1 times [2022-01-11 07:14:26,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:26,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678007472] [2022-01-11 07:14:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:26,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:26,933 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 07:14:26,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:26,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678007472] [2022-01-11 07:14:26,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678007472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:26,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:26,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:26,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839703451] [2022-01-11 07:14:26,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:26,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:26,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:26,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:26,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:26,935 INFO L87 Difference]: Start difference. First operand 3116 states and 5412 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:27,002 INFO L93 Difference]: Finished difference Result 4088 states and 6831 transitions. [2022-01-11 07:14:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:27,012 INFO L225 Difference]: With dead ends: 4088 [2022-01-11 07:14:27,012 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:27,015 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 07:14:27,016 INFO L933 BasicCegarLoop]: 5402 mSDtfsCounter, 5384 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 5402 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 07:14:27,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5384 Valid, 5402 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:27,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7363519588953116) internal successors, (5407), 3115 states have internal predecessors, (5407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5407 transitions. [2022-01-11 07:14:27,092 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5407 transitions. Word has length 121 [2022-01-11 07:14:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:27,092 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5407 transitions. [2022-01-11 07:14:27,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,093 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5407 transitions. [2022-01-11 07:14:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:27,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:27,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:27,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:14:27,094 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:27,094 INFO L85 PathProgramCache]: Analyzing trace with hash -977695541, now seen corresponding path program 1 times [2022-01-11 07:14:27,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:27,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560612848] [2022-01-11 07:14:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:27,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:27,142 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 07:14:27,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:27,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560612848] [2022-01-11 07:14:27,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560612848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:27,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:27,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:27,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572218037] [2022-01-11 07:14:27,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:27,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:27,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:27,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:27,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:27,144 INFO L87 Difference]: Start difference. First operand 3116 states and 5407 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:27,233 INFO L93 Difference]: Finished difference Result 4087 states and 6820 transitions. [2022-01-11 07:14:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:27,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:27,253 INFO L225 Difference]: With dead ends: 4087 [2022-01-11 07:14:27,253 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:27,255 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 07:14:27,255 INFO L933 BasicCegarLoop]: 5375 mSDtfsCounter, 5275 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:27,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 5463 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73121387283237) internal successors, (5391), 3115 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5391 transitions. [2022-01-11 07:14:27,389 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5391 transitions. Word has length 121 [2022-01-11 07:14:27,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:27,390 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5391 transitions. [2022-01-11 07:14:27,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5391 transitions. [2022-01-11 07:14:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:27,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:27,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:27,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:14:27,391 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:27,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:27,392 INFO L85 PathProgramCache]: Analyzing trace with hash -281389237, now seen corresponding path program 1 times [2022-01-11 07:14:27,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:27,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638154732] [2022-01-11 07:14:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:27,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:14:27,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:27,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638154732] [2022-01-11 07:14:27,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638154732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:27,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:27,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:27,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464674743] [2022-01-11 07:14:27,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:27,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:27,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:27,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:27,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:27,423 INFO L87 Difference]: Start difference. First operand 3116 states and 5391 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:27,503 INFO L93 Difference]: Finished difference Result 4086 states and 6787 transitions. [2022-01-11 07:14:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:27,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:27,510 INFO L225 Difference]: With dead ends: 4086 [2022-01-11 07:14:27,510 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:27,512 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 07:14:27,514 INFO L933 BasicCegarLoop]: 5359 mSDtfsCounter, 5259 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5259 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:27,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5259 Valid, 5446 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:27,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:27,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7260757867694283) internal successors, (5375), 3115 states have internal predecessors, (5375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5375 transitions. [2022-01-11 07:14:27,575 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5375 transitions. Word has length 121 [2022-01-11 07:14:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:27,575 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5375 transitions. [2022-01-11 07:14:27,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5375 transitions. [2022-01-11 07:14:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:27,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:27,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:27,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:14:27,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1236411862, now seen corresponding path program 1 times [2022-01-11 07:14:27,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:27,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027938023] [2022-01-11 07:14:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:27,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:27,609 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 07:14:27,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:27,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027938023] [2022-01-11 07:14:27,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027938023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:27,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:27,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:27,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989212256] [2022-01-11 07:14:27,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:27,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:27,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:27,611 INFO L87 Difference]: Start difference. First operand 3116 states and 5375 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:27,684 INFO L93 Difference]: Finished difference Result 4085 states and 6754 transitions. [2022-01-11 07:14:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:27,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:27,689 INFO L225 Difference]: With dead ends: 4085 [2022-01-11 07:14:27,689 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:27,691 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 07:14:27,691 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 5243 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 5429 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:27,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5243 Valid, 5429 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:27,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7209377007064868) internal successors, (5359), 3115 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5359 transitions. [2022-01-11 07:14:27,758 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5359 transitions. Word has length 121 [2022-01-11 07:14:27,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:27,758 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5359 transitions. [2022-01-11 07:14:27,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5359 transitions. [2022-01-11 07:14:27,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:27,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:27,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:27,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:14:27,759 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:27,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:27,760 INFO L85 PathProgramCache]: Analyzing trace with hash -844500471, now seen corresponding path program 1 times [2022-01-11 07:14:27,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:27,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055209492] [2022-01-11 07:14:27,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:27,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:27,792 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 07:14:27,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:27,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055209492] [2022-01-11 07:14:27,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055209492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:27,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:27,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:27,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542507074] [2022-01-11 07:14:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:27,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:27,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:27,793 INFO L87 Difference]: Start difference. First operand 3116 states and 5359 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:27,866 INFO L93 Difference]: Finished difference Result 4084 states and 6721 transitions. [2022-01-11 07:14:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:27,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:27,872 INFO L225 Difference]: With dead ends: 4084 [2022-01-11 07:14:27,872 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:27,873 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 07:14:27,874 INFO L933 BasicCegarLoop]: 5327 mSDtfsCounter, 5227 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:27,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5227 Valid, 5412 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:27,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7157996146435452) internal successors, (5343), 3115 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5343 transitions. [2022-01-11 07:14:27,931 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5343 transitions. Word has length 121 [2022-01-11 07:14:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:27,931 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5343 transitions. [2022-01-11 07:14:27,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5343 transitions. [2022-01-11 07:14:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:27,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:27,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:27,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:14:27,933 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:27,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:27,933 INFO L85 PathProgramCache]: Analyzing trace with hash -735009944, now seen corresponding path program 1 times [2022-01-11 07:14:27,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:27,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859627340] [2022-01-11 07:14:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:27,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:27,961 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 07:14:27,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:27,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859627340] [2022-01-11 07:14:27,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859627340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:27,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:27,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:27,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599248971] [2022-01-11 07:14:27,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:27,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:27,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:27,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:27,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:27,963 INFO L87 Difference]: Start difference. First operand 3116 states and 5343 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:28,103 INFO L93 Difference]: Finished difference Result 4083 states and 6688 transitions. [2022-01-11 07:14:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:28,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:28,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:28,108 INFO L225 Difference]: With dead ends: 4083 [2022-01-11 07:14:28,108 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:28,109 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 07:14:28,110 INFO L933 BasicCegarLoop]: 5311 mSDtfsCounter, 5211 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:28,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5211 Valid, 5395 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:28,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:28,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7106615285806037) internal successors, (5327), 3115 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5327 transitions. [2022-01-11 07:14:28,162 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5327 transitions. Word has length 121 [2022-01-11 07:14:28,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:28,163 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5327 transitions. [2022-01-11 07:14:28,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5327 transitions. [2022-01-11 07:14:28,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:28,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:28,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:28,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:14:28,164 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1115014713, now seen corresponding path program 1 times [2022-01-11 07:14:28,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:28,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073039593] [2022-01-11 07:14:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:28,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:28,192 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 07:14:28,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:28,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073039593] [2022-01-11 07:14:28,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073039593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:28,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:28,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:28,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414450244] [2022-01-11 07:14:28,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:28,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:28,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:28,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:28,193 INFO L87 Difference]: Start difference. First operand 3116 states and 5327 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:28,268 INFO L93 Difference]: Finished difference Result 4082 states and 6655 transitions. [2022-01-11 07:14:28,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:28,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:28,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:28,273 INFO L225 Difference]: With dead ends: 4082 [2022-01-11 07:14:28,273 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:28,275 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 07:14:28,275 INFO L933 BasicCegarLoop]: 5295 mSDtfsCounter, 5195 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:28,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5195 Valid, 5378 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:28,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7055234425176622) internal successors, (5311), 3115 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5311 transitions. [2022-01-11 07:14:28,337 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5311 transitions. Word has length 121 [2022-01-11 07:14:28,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:28,337 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5311 transitions. [2022-01-11 07:14:28,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5311 transitions. [2022-01-11 07:14:28,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:28,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:28,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:28,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:14:28,339 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:28,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1302603354, now seen corresponding path program 1 times [2022-01-11 07:14:28,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:28,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631307297] [2022-01-11 07:14:28,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:28,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:28,367 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 07:14:28,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:28,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631307297] [2022-01-11 07:14:28,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631307297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:28,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:28,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:28,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605745614] [2022-01-11 07:14:28,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:28,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:28,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:28,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:28,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:28,369 INFO L87 Difference]: Start difference. First operand 3116 states and 5311 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:28,436 INFO L93 Difference]: Finished difference Result 4081 states and 6622 transitions. [2022-01-11 07:14:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:28,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:28,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:28,440 INFO L225 Difference]: With dead ends: 4081 [2022-01-11 07:14:28,440 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:28,442 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 07:14:28,442 INFO L933 BasicCegarLoop]: 5279 mSDtfsCounter, 5179 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:28,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5179 Valid, 5361 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:28,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7003853564547207) internal successors, (5295), 3115 states have internal predecessors, (5295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5295 transitions. [2022-01-11 07:14:28,501 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5295 transitions. Word has length 121 [2022-01-11 07:14:28,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:28,501 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5295 transitions. [2022-01-11 07:14:28,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5295 transitions. [2022-01-11 07:14:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:28,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:28,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:28,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:14:28,502 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:28,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:28,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1677110917, now seen corresponding path program 1 times [2022-01-11 07:14:28,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:28,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932377246] [2022-01-11 07:14:28,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:28,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:28,532 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 07:14:28,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:28,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932377246] [2022-01-11 07:14:28,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932377246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:28,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:28,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:28,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110526034] [2022-01-11 07:14:28,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:28,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:28,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:28,534 INFO L87 Difference]: Start difference. First operand 3116 states and 5295 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:28,605 INFO L93 Difference]: Finished difference Result 4080 states and 6589 transitions. [2022-01-11 07:14:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:28,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:28,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:28,610 INFO L225 Difference]: With dead ends: 4080 [2022-01-11 07:14:28,610 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:28,611 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 07:14:28,612 INFO L933 BasicCegarLoop]: 5263 mSDtfsCounter, 5163 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:28,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5163 Valid, 5344 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:28,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:28,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6952472703917791) internal successors, (5279), 3115 states have internal predecessors, (5279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5279 transitions. [2022-01-11 07:14:28,668 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5279 transitions. Word has length 121 [2022-01-11 07:14:28,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:28,669 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5279 transitions. [2022-01-11 07:14:28,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5279 transitions. [2022-01-11 07:14:28,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:28,670 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:28,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:28,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:14:28,670 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:28,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash 218823908, now seen corresponding path program 1 times [2022-01-11 07:14:28,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:28,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957030079] [2022-01-11 07:14:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:28,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:28,700 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 07:14:28,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:28,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957030079] [2022-01-11 07:14:28,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957030079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:28,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:28,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:28,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722670665] [2022-01-11 07:14:28,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:28,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:28,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:28,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:28,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:28,702 INFO L87 Difference]: Start difference. First operand 3116 states and 5279 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:28,790 INFO L93 Difference]: Finished difference Result 4079 states and 6556 transitions. [2022-01-11 07:14:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:28,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:28,795 INFO L225 Difference]: With dead ends: 4079 [2022-01-11 07:14:28,795 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:14:28,797 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 07:14:28,798 INFO L933 BasicCegarLoop]: 5247 mSDtfsCounter, 5147 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:28,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5147 Valid, 5327 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:14:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:14:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6901091843288376) internal successors, (5263), 3115 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5263 transitions. [2022-01-11 07:14:28,899 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5263 transitions. Word has length 121 [2022-01-11 07:14:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:28,899 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5263 transitions. [2022-01-11 07:14:28,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:28,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5263 transitions. [2022-01-11 07:14:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:28,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:28,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:28,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:14:28,900 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:28,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:28,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1665847363, now seen corresponding path program 1 times [2022-01-11 07:14:28,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:28,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272919137] [2022-01-11 07:14:28,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:28,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:14:28,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:28,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272919137] [2022-01-11 07:14:28,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272919137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:28,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:28,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:14:28,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245788483] [2022-01-11 07:14:28,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:28,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:14:28,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:28,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:14:28,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:14:28,956 INFO L87 Difference]: Start difference. First operand 3116 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:29,163 INFO L93 Difference]: Finished difference Result 4458 states and 7046 transitions. [2022-01-11 07:14:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:14:29,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:29,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:29,169 INFO L225 Difference]: With dead ends: 4458 [2022-01-11 07:14:29,170 INFO L226 Difference]: Without dead ends: 3509 [2022-01-11 07:14:29,171 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 07:14:29,172 INFO L933 BasicCegarLoop]: 5351 mSDtfsCounter, 3549 mSDsluCounter, 13532 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 18883 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:29,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3549 Valid, 18883 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:14:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-01-11 07:14:29,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3119. [2022-01-11 07:14:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3117 states have (on average 1.685915944818736) internal successors, (5255), 3118 states have internal predecessors, (5255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 5255 transitions. [2022-01-11 07:14:29,252 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 5255 transitions. Word has length 121 [2022-01-11 07:14:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:29,252 INFO L470 AbstractCegarLoop]: Abstraction has 3119 states and 5255 transitions. [2022-01-11 07:14:29,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 5255 transitions. [2022-01-11 07:14:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:29,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:29,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:29,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:14:29,253 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1679380164, now seen corresponding path program 1 times [2022-01-11 07:14:29,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:29,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940154122] [2022-01-11 07:14:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:29,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:29,298 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 07:14:29,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:29,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940154122] [2022-01-11 07:14:29,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940154122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:29,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:29,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:14:29,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264746832] [2022-01-11 07:14:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:29,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:14:29,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:29,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:14:29,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:14:29,299 INFO L87 Difference]: Start difference. First operand 3119 states and 5255 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:29,529 INFO L93 Difference]: Finished difference Result 4710 states and 7343 transitions. [2022-01-11 07:14:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:14:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:29,535 INFO L225 Difference]: With dead ends: 4710 [2022-01-11 07:14:29,535 INFO L226 Difference]: Without dead ends: 3793 [2022-01-11 07:14:29,537 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 07:14:29,537 INFO L933 BasicCegarLoop]: 5248 mSDtfsCounter, 2894 mSDsluCounter, 14816 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 20064 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:29,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 20064 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:14:29,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-01-11 07:14:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3122. [2022-01-11 07:14:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.6817307692307693) internal successors, (5247), 3121 states have internal predecessors, (5247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5247 transitions. [2022-01-11 07:14:29,621 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5247 transitions. Word has length 121 [2022-01-11 07:14:29,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:29,622 INFO L470 AbstractCegarLoop]: Abstraction has 3122 states and 5247 transitions. [2022-01-11 07:14:29,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5247 transitions. [2022-01-11 07:14:29,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:29,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:29,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:29,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:14:29,623 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:29,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash -644647675, now seen corresponding path program 1 times [2022-01-11 07:14:29,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:29,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241919775] [2022-01-11 07:14:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:29,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:29,667 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 07:14:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:29,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241919775] [2022-01-11 07:14:29,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241919775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:29,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:29,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:14:29,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596326977] [2022-01-11 07:14:29,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:29,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:14:29,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:14:29,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:14:29,668 INFO L87 Difference]: Start difference. First operand 3122 states and 5247 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:29,930 INFO L93 Difference]: Finished difference Result 4768 states and 7386 transitions. [2022-01-11 07:14:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:14:29,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:29,936 INFO L225 Difference]: With dead ends: 4768 [2022-01-11 07:14:29,936 INFO L226 Difference]: Without dead ends: 3855 [2022-01-11 07:14:29,938 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 07:14:29,938 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 2747 mSDsluCounter, 15049 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 20268 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:29,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 20268 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:14:29,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2022-01-11 07:14:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3125. [2022-01-11 07:14:30,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3123 states have (on average 1.6775536343259687) internal successors, (5239), 3124 states have internal predecessors, (5239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 5239 transitions. [2022-01-11 07:14:30,054 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 5239 transitions. Word has length 121 [2022-01-11 07:14:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:30,054 INFO L470 AbstractCegarLoop]: Abstraction has 3125 states and 5239 transitions. [2022-01-11 07:14:30,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 5239 transitions. [2022-01-11 07:14:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:30,056 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:30,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:30,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:14:30,056 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:30,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:30,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1714659334, now seen corresponding path program 1 times [2022-01-11 07:14:30,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:30,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730703526] [2022-01-11 07:14:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:30,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:30,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:14:30,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:30,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730703526] [2022-01-11 07:14:30,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730703526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:30,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:30,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:30,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663987280] [2022-01-11 07:14:30,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:30,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:30,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:30,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:30,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:30,119 INFO L87 Difference]: Start difference. First operand 3125 states and 5239 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:30,311 INFO L93 Difference]: Finished difference Result 4938 states and 7552 transitions. [2022-01-11 07:14:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:30,317 INFO L225 Difference]: With dead ends: 4938 [2022-01-11 07:14:30,317 INFO L226 Difference]: Without dead ends: 3949 [2022-01-11 07:14:30,319 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 07:14:30,319 INFO L933 BasicCegarLoop]: 5224 mSDtfsCounter, 5056 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 6346 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 07:14:30,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 6346 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:30,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2022-01-11 07:14:30,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3947. [2022-01-11 07:14:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5946768060836503) internal successors, (6291), 3946 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6291 transitions. [2022-01-11 07:14:30,489 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6291 transitions. Word has length 121 [2022-01-11 07:14:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:30,489 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6291 transitions. [2022-01-11 07:14:30,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6291 transitions. [2022-01-11 07:14:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:30,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:30,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:30,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:14:30,491 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash -469017593, now seen corresponding path program 1 times [2022-01-11 07:14:30,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:30,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422699756] [2022-01-11 07:14:30,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:30,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:14:30,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:30,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422699756] [2022-01-11 07:14:30,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422699756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:30,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:30,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:30,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937866673] [2022-01-11 07:14:30,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:30,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:30,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:30,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:30,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:30,567 INFO L87 Difference]: Start difference. First operand 3947 states and 6291 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:30,741 INFO L93 Difference]: Finished difference Result 5754 states and 8595 transitions. [2022-01-11 07:14:30,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:30,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:30,748 INFO L225 Difference]: With dead ends: 5754 [2022-01-11 07:14:30,748 INFO L226 Difference]: Without dead ends: 3947 [2022-01-11 07:14:30,751 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 07:14:30,751 INFO L933 BasicCegarLoop]: 5218 mSDtfsCounter, 5131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 5218 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 07:14:30,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5131 Valid, 5218 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2022-01-11 07:14:30,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2022-01-11 07:14:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5926489226869456) internal successors, (6283), 3946 states have internal predecessors, (6283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6283 transitions. [2022-01-11 07:14:30,898 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6283 transitions. Word has length 121 [2022-01-11 07:14:30,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:30,898 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6283 transitions. [2022-01-11 07:14:30,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6283 transitions. [2022-01-11 07:14:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:14:30,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:30,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:30,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:14:30,899 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:30,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:30,900 INFO L85 PathProgramCache]: Analyzing trace with hash 224084104, now seen corresponding path program 1 times [2022-01-11 07:14:30,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:30,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125552698] [2022-01-11 07:14:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:30,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:30,936 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 07:14:30,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:30,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125552698] [2022-01-11 07:14:30,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125552698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:30,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:30,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:14:30,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453688005] [2022-01-11 07:14:30,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:30,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:30,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:30,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:30,938 INFO L87 Difference]: Start difference. First operand 3947 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:31,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:31,205 INFO L93 Difference]: Finished difference Result 7420 states and 10715 transitions. [2022-01-11 07:14:31,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:31,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:14:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:31,213 INFO L225 Difference]: With dead ends: 7420 [2022-01-11 07:14:31,214 INFO L226 Difference]: Without dead ends: 5628 [2022-01-11 07:14:31,217 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 07:14:31,217 INFO L933 BasicCegarLoop]: 5208 mSDtfsCounter, 5073 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:31,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5073 Valid, 6307 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-01-11 07:14:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5498. [2022-01-11 07:14:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 5496 states have (on average 1.5007278020378456) internal successors, (8248), 5497 states have internal predecessors, (8248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 8248 transitions. [2022-01-11 07:14:31,438 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 8248 transitions. Word has length 121 [2022-01-11 07:14:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:31,438 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 8248 transitions. [2022-01-11 07:14:31,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 8248 transitions. [2022-01-11 07:14:31,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:14:31,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:31,441 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:31,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:14:31,441 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:31,442 INFO L85 PathProgramCache]: Analyzing trace with hash 30719052, now seen corresponding path program 1 times [2022-01-11 07:14:31,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:31,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822080170] [2022-01-11 07:14:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:31,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:31,487 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 07:14:31,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:31,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822080170] [2022-01-11 07:14:31,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822080170] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:31,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:31,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:31,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93881090] [2022-01-11 07:14:31,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:31,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:31,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:31,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:31,488 INFO L87 Difference]: Start difference. First operand 5498 states and 8248 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:31,888 INFO L93 Difference]: Finished difference Result 12013 states and 16541 transitions. [2022-01-11 07:14:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:31,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:14:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:31,941 INFO L225 Difference]: With dead ends: 12013 [2022-01-11 07:14:31,942 INFO L226 Difference]: Without dead ends: 8676 [2022-01-11 07:14:31,945 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 07:14:31,945 INFO L933 BasicCegarLoop]: 5205 mSDtfsCounter, 5094 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:31,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5094 Valid, 6304 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:31,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8676 states. [2022-01-11 07:14:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8676 to 8446. [2022-01-11 07:14:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 8444 states have (on average 1.4187588820464234) internal successors, (11980), 8445 states have internal predecessors, (11980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 11980 transitions. [2022-01-11 07:14:32,355 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 11980 transitions. Word has length 196 [2022-01-11 07:14:32,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:32,355 INFO L470 AbstractCegarLoop]: Abstraction has 8446 states and 11980 transitions. [2022-01-11 07:14:32,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:32,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 11980 transitions. [2022-01-11 07:14:32,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:14:32,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:32,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:32,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:14:32,359 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:32,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:32,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2021145588, now seen corresponding path program 1 times [2022-01-11 07:14:32,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671158048] [2022-01-11 07:14:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:32,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:32,416 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 07:14:32,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:32,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671158048] [2022-01-11 07:14:32,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671158048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:32,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:32,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:32,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668976326] [2022-01-11 07:14:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:32,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:32,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:32,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:32,418 INFO L87 Difference]: Start difference. First operand 8446 states and 11980 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:33,103 INFO L93 Difference]: Finished difference Result 20515 states and 27169 transitions. [2022-01-11 07:14:33,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:33,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:14:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:33,128 INFO L225 Difference]: With dead ends: 20515 [2022-01-11 07:14:33,128 INFO L226 Difference]: Without dead ends: 14303 [2022-01-11 07:14:33,140 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 07:14:33,140 INFO L933 BasicCegarLoop]: 5881 mSDtfsCounter, 4911 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 7122 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 07:14:33,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4911 Valid, 7122 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2022-01-11 07:14:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 14301. [2022-01-11 07:14:33,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14301 states, 14299 states have (on average 1.3461780544093993) internal successors, (19249), 14300 states have internal predecessors, (19249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:33,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14301 states to 14301 states and 19249 transitions. [2022-01-11 07:14:33,928 INFO L78 Accepts]: Start accepts. Automaton has 14301 states and 19249 transitions. Word has length 196 [2022-01-11 07:14:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:33,929 INFO L470 AbstractCegarLoop]: Abstraction has 14301 states and 19249 transitions. [2022-01-11 07:14:33,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:33,929 INFO L276 IsEmpty]: Start isEmpty. Operand 14301 states and 19249 transitions. [2022-01-11 07:14:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:14:33,937 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:33,937 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:33,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:14:33,937 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:33,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:33,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2037203883, now seen corresponding path program 1 times [2022-01-11 07:14:33,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:33,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112967439] [2022-01-11 07:14:33,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:33,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:33,974 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 07:14:33,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:33,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112967439] [2022-01-11 07:14:33,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112967439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:33,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:33,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:33,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604352060] [2022-01-11 07:14:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:33,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:33,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:33,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:33,976 INFO L87 Difference]: Start difference. First operand 14301 states and 19249 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:34,941 INFO L93 Difference]: Finished difference Result 26261 states and 34278 transitions. [2022-01-11 07:14:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:34,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:14:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:34,978 INFO L225 Difference]: With dead ends: 26261 [2022-01-11 07:14:34,979 INFO L226 Difference]: Without dead ends: 14194 [2022-01-11 07:14:34,993 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 07:14:34,994 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 1255 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 9175 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 07:14:34,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 9175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:35,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14194 states. [2022-01-11 07:14:35,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14194 to 14194. [2022-01-11 07:14:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14194 states, 14192 states have (on average 1.3473083427282977) internal successors, (19121), 14193 states have internal predecessors, (19121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:35,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14194 states to 14194 states and 19121 transitions. [2022-01-11 07:14:35,726 INFO L78 Accepts]: Start accepts. Automaton has 14194 states and 19121 transitions. Word has length 196 [2022-01-11 07:14:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:35,726 INFO L470 AbstractCegarLoop]: Abstraction has 14194 states and 19121 transitions. [2022-01-11 07:14:35,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:35,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14194 states and 19121 transitions. [2022-01-11 07:14:35,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:14:35,733 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:35,733 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:35,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:14:35,733 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:35,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:35,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1501960874, now seen corresponding path program 1 times [2022-01-11 07:14:35,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:35,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490579141] [2022-01-11 07:14:35,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:35,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:35,777 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 07:14:35,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:35,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490579141] [2022-01-11 07:14:35,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490579141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:35,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:35,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:35,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017747565] [2022-01-11 07:14:35,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:35,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:35,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:35,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:35,779 INFO L87 Difference]: Start difference. First operand 14194 states and 19121 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:36,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:36,989 INFO L93 Difference]: Finished difference Result 37692 states and 48520 transitions. [2022-01-11 07:14:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:36,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-11 07:14:36,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:37,032 INFO L225 Difference]: With dead ends: 37692 [2022-01-11 07:14:37,032 INFO L226 Difference]: Without dead ends: 25732 [2022-01-11 07:14:37,051 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 07:14:37,051 INFO L933 BasicCegarLoop]: 5486 mSDtfsCounter, 5089 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6714 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:37,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6714 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:37,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25732 states. [2022-01-11 07:14:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25732 to 24994. [2022-01-11 07:14:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24994 states, 24992 states have (on average 1.3019366197183098) internal successors, (32538), 24993 states have internal predecessors, (32538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24994 states to 24994 states and 32538 transitions. [2022-01-11 07:14:38,602 INFO L78 Accepts]: Start accepts. Automaton has 24994 states and 32538 transitions. Word has length 197 [2022-01-11 07:14:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:38,602 INFO L470 AbstractCegarLoop]: Abstraction has 24994 states and 32538 transitions. [2022-01-11 07:14:38,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 24994 states and 32538 transitions. [2022-01-11 07:14:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:14:38,612 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:38,613 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:38,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:14:38,613 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:38,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1939712201, now seen corresponding path program 1 times [2022-01-11 07:14:38,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:38,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775174002] [2022-01-11 07:14:38,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:38,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:38,640 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 07:14:38,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:38,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775174002] [2022-01-11 07:14:38,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775174002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:38,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:38,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:38,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858736509] [2022-01-11 07:14:38,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:38,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:38,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:38,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:38,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:38,642 INFO L87 Difference]: Start difference. First operand 24994 states and 32538 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:40,189 INFO L93 Difference]: Finished difference Result 47710 states and 60931 transitions. [2022-01-11 07:14:40,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:40,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-11 07:14:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:40,229 INFO L225 Difference]: With dead ends: 47710 [2022-01-11 07:14:40,229 INFO L226 Difference]: Without dead ends: 24888 [2022-01-11 07:14:40,249 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 07:14:40,250 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 1253 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 9174 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 07:14:40,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 9174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:40,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2022-01-11 07:14:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 24888. [2022-01-11 07:14:41,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24886 states have (on average 1.3024190307803585) internal successors, (32412), 24887 states have internal predecessors, (32412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:41,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 32412 transitions. [2022-01-11 07:14:41,687 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 32412 transitions. Word has length 197 [2022-01-11 07:14:41,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:41,687 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 32412 transitions. [2022-01-11 07:14:41,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:41,688 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 32412 transitions. [2022-01-11 07:14:41,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:14:41,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:41,697 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:41,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:14:41,697 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1728213883, now seen corresponding path program 1 times [2022-01-11 07:14:41,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:41,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727544191] [2022-01-11 07:14:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:41,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:41,741 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 07:14:41,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:41,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727544191] [2022-01-11 07:14:41,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727544191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:41,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:41,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:41,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123326899] [2022-01-11 07:14:41,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:41,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:41,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:41,742 INFO L87 Difference]: Start difference. First operand 24888 states and 32412 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:44,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:44,465 INFO L93 Difference]: Finished difference Result 69189 states and 87657 transitions. [2022-01-11 07:14:44,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:44,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-11 07:14:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:44,526 INFO L225 Difference]: With dead ends: 69189 [2022-01-11 07:14:44,527 INFO L226 Difference]: Without dead ends: 46535 [2022-01-11 07:14:44,546 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 07:14:44,547 INFO L933 BasicCegarLoop]: 5505 mSDtfsCounter, 5089 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:44,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6731 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:44,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46535 states. [2022-01-11 07:14:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46535 to 45285. [2022-01-11 07:14:47,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45285 states, 45283 states have (on average 1.2751584479826867) internal successors, (57743), 45284 states have internal predecessors, (57743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45285 states to 45285 states and 57743 transitions. [2022-01-11 07:14:47,385 INFO L78 Accepts]: Start accepts. Automaton has 45285 states and 57743 transitions. Word has length 198 [2022-01-11 07:14:47,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:47,386 INFO L470 AbstractCegarLoop]: Abstraction has 45285 states and 57743 transitions. [2022-01-11 07:14:47,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand 45285 states and 57743 transitions. [2022-01-11 07:14:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:14:47,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:47,402 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:47,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:14:47,402 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash -905764968, now seen corresponding path program 1 times [2022-01-11 07:14:47,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:47,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587529810] [2022-01-11 07:14:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:47,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:47,430 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 07:14:47,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:47,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587529810] [2022-01-11 07:14:47,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587529810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:47,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:47,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:47,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373621071] [2022-01-11 07:14:47,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:47,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:47,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:47,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:47,432 INFO L87 Difference]: Start difference. First operand 45285 states and 57743 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:50,191 INFO L93 Difference]: Finished difference Result 88286 states and 111335 transitions. [2022-01-11 07:14:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-11 07:14:50,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:50,268 INFO L225 Difference]: With dead ends: 88286 [2022-01-11 07:14:50,268 INFO L226 Difference]: Without dead ends: 45180 [2022-01-11 07:14:50,296 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 07:14:50,297 INFO L933 BasicCegarLoop]: 5215 mSDtfsCounter, 1251 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 9173 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 07:14:50,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 9173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45180 states. [2022-01-11 07:14:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45180 to 45180. [2022-01-11 07:14:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45180 states, 45178 states have (on average 1.275377396077737) internal successors, (57619), 45179 states have internal predecessors, (57619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45180 states to 45180 states and 57619 transitions. [2022-01-11 07:14:52,976 INFO L78 Accepts]: Start accepts. Automaton has 45180 states and 57619 transitions. Word has length 198 [2022-01-11 07:14:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:14:52,976 INFO L470 AbstractCegarLoop]: Abstraction has 45180 states and 57619 transitions. [2022-01-11 07:14:52,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 45180 states and 57619 transitions. [2022-01-11 07:14:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:14:52,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:14:52,990 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:14:52,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:14:52,990 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:14:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:14:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 61581923, now seen corresponding path program 1 times [2022-01-11 07:14:52,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:14:52,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427522749] [2022-01-11 07:14:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:14:52,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:14:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:14:53,033 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 07:14:53,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:14:53,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427522749] [2022-01-11 07:14:53,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427522749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:14:53,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:14:53,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:14:53,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80944130] [2022-01-11 07:14:53,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:14:53,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:14:53,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:14:53,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:14:53,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:14:53,035 INFO L87 Difference]: Start difference. First operand 45180 states and 57619 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:14:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:14:58,070 INFO L93 Difference]: Finished difference Result 128648 states and 161470 transitions. [2022-01-11 07:14:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:14:58,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-01-11 07:14:58,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:14:58,198 INFO L225 Difference]: With dead ends: 128648 [2022-01-11 07:14:58,199 INFO L226 Difference]: Without dead ends: 85702 [2022-01-11 07:14:58,242 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 07:14:58,243 INFO L933 BasicCegarLoop]: 5506 mSDtfsCounter, 5089 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:14:58,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6730 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:14:58,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85702 states. [2022-01-11 07:15:03,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85702 to 83652. [2022-01-11 07:15:03,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83652 states, 83650 states have (on average 1.2594859533771667) internal successors, (105356), 83651 states have internal predecessors, (105356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:03,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83652 states to 83652 states and 105356 transitions. [2022-01-11 07:15:03,714 INFO L78 Accepts]: Start accepts. Automaton has 83652 states and 105356 transitions. Word has length 199 [2022-01-11 07:15:03,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:15:03,714 INFO L470 AbstractCegarLoop]: Abstraction has 83652 states and 105356 transitions. [2022-01-11 07:15:03,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 83652 states and 105356 transitions. [2022-01-11 07:15:03,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:15:03,742 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:15:03,742 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:15:03,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 07:15:03,743 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:15:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:15:03,743 INFO L85 PathProgramCache]: Analyzing trace with hash 992978628, now seen corresponding path program 1 times [2022-01-11 07:15:03,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:15:03,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947030201] [2022-01-11 07:15:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:15:03,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:15:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:15:03,776 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 07:15:03,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:15:03,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947030201] [2022-01-11 07:15:03,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947030201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:15:03,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:15:03,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:15:03,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533685214] [2022-01-11 07:15:03,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:15:03,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:15:03,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:15:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:15:03,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:15:03,777 INFO L87 Difference]: Start difference. First operand 83652 states and 105356 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:15:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:15:09,482 INFO L93 Difference]: Finished difference Result 165014 states and 206555 transitions. [2022-01-11 07:15:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:15:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-01-11 07:15:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:15:09,634 INFO L225 Difference]: With dead ends: 165014 [2022-01-11 07:15:09,634 INFO L226 Difference]: Without dead ends: 83548 [2022-01-11 07:15:09,721 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 07:15:09,723 INFO L933 BasicCegarLoop]: 5214 mSDtfsCounter, 1249 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 9172 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 07:15:09,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 9172 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:15:09,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83548 states.