/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:13:48,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:13:48,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:13:48,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:13:48,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:13:48,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:13:48,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:13:48,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:13:48,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:13:48,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:13:48,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:13:48,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:13:48,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:13:48,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:13:48,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:13:48,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:13:48,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:13:48,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:13:48,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:13:48,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:13:48,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:13:48,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:13:48,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:13:48,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:13:48,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:13:48,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:13:48,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:13:48,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:13:48,685 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:13:48,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:13:48,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:13:48,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:13:48,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:13:48,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:13:48,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:13:48,721 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:13:48,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:13:48,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:13:48,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:13:48,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:13:48,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:13:48,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:13:48,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:13:48,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:13:48,725 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:13:48,725 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:13:48,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:13:48,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:13:48,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:13:48,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:13:48,972 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:13:48,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.06.cil-1.c [2022-01-11 01:13:49,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682f92a7a/2ea2bfda01394c0289664f36fddbc7d5/FLAGa7afada4c [2022-01-11 01:13:49,913 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:13:49,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.06.cil-1.c [2022-01-11 01:13:49,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682f92a7a/2ea2bfda01394c0289664f36fddbc7d5/FLAGa7afada4c [2022-01-11 01:13:50,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/682f92a7a/2ea2bfda01394c0289664f36fddbc7d5 [2022-01-11 01:13:50,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:13:50,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:13:50,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:13:50,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:13:50,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:13:50,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:13:50" (1/1) ... [2022-01-11 01:13:50,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19996325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:50, skipping insertion in model container [2022-01-11 01:13:50,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:13:50" (1/1) ... [2022-01-11 01:13:50,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:13:50,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:13:51,869 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_label43+token_ring.06.cil-1.c[381679,381692] [2022-01-11 01:13:51,891 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_label43+token_ring.06.cil-1.c[383339,383352] [2022-01-11 01:13:52,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:13:52,104 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:13:52,874 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_label43+token_ring.06.cil-1.c[381679,381692] [2022-01-11 01:13:52,887 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_label43+token_ring.06.cil-1.c[383339,383352] [2022-01-11 01:13:52,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:13:52,967 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:13:52,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52 WrapperNode [2022-01-11 01:13:52,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:13:52,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:13:52,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:13:52,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:13:52,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,496 INFO L137 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 55, calls inlined = 124, statements flattened = 13997 [2022-01-11 01:13:53,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:13:53,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:13:53,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:13:53,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:13:53,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:53,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:54,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:13:54,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:13:54,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:13:54,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:13:54,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (1/1) ... [2022-01-11 01:13:54,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:13:54,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:13:54,052 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 01:13:54,083 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 01:13:54,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:13:54,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:13:54,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:13:54,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:13:54,266 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:13:54,267 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:14:02,778 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:14:02,804 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:14:02,805 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-11 01:14:02,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:14:02 BoogieIcfgContainer [2022-01-11 01:14:02,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:14:02,810 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:14:02,810 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:14:02,812 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:14:02,814 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:14:02" (1/1) ... [2022-01-11 01:14:04,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:14:04 BasicIcfg [2022-01-11 01:14:04,324 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:14:04,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:14:04,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:14:04,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:14:04,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:13:50" (1/4) ... [2022-01-11 01:14:04,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c13dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:14:04, skipping insertion in model container [2022-01-11 01:14:04,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:13:52" (2/4) ... [2022-01-11 01:14:04,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c13dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:14:04, skipping insertion in model container [2022-01-11 01:14:04,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:14:02" (3/4) ... [2022-01-11 01:14:04,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c13dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:14:04, skipping insertion in model container [2022-01-11 01:14:04,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:14:04" (4/4) ... [2022-01-11 01:14:04,332 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.06.cil-1.cTransformedIcfg [2022-01-11 01:14:04,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:14:04,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:14:04,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:14:04,400 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 01:14:04,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:14:04,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:04,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:04,481 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] [2022-01-11 01:14:04,481 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:04,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:04,486 INFO L85 PathProgramCache]: Analyzing trace with hash -367206436, now seen corresponding path program 1 times [2022-01-11 01:14:04,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:04,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727633641] [2022-01-11 01:14:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:04,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:14:04,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:04,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727633641] [2022-01-11 01:14:04,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727633641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:04,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:04,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:04,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064397617] [2022-01-11 01:14:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:04,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:04,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:04,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:04,872 INFO L87 Difference]: Start difference. First operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 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 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:05,204 INFO L93 Difference]: Finished difference Result 6295 states and 11099 transitions. [2022-01-11 01:14:05,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:05,241 INFO L225 Difference]: With dead ends: 6295 [2022-01-11 01:14:05,241 INFO L226 Difference]: Without dead ends: 3359 [2022-01-11 01:14:05,256 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 01:14:05,259 INFO L933 BasicCegarLoop]: 5052 mSDtfsCounter, 4967 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 5936 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:05,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4967 Valid, 5936 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:14:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-01-11 01:14:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2022-01-11 01:14:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7297136038186158) internal successors, (5798), 3354 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5798 transitions. [2022-01-11 01:14:05,406 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5798 transitions. Word has length 99 [2022-01-11 01:14:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:05,407 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5798 transitions. [2022-01-11 01:14:05,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5798 transitions. [2022-01-11 01:14:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:05,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:05,413 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] [2022-01-11 01:14:05,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:14:05,414 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:05,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:05,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1494091516, now seen corresponding path program 1 times [2022-01-11 01:14:05,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:05,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299851137] [2022-01-11 01:14:05,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:05,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:05,501 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 01:14:05,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299851137] [2022-01-11 01:14:05,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299851137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:05,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:05,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:05,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682038810] [2022-01-11 01:14:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:05,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:05,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:05,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:05,509 INFO L87 Difference]: Start difference. First operand 3355 states and 5798 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:05,610 INFO L93 Difference]: Finished difference Result 4575 states and 7616 transitions. [2022-01-11 01:14:05,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:05,627 INFO L225 Difference]: With dead ends: 4575 [2022-01-11 01:14:05,628 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:05,632 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 01:14:05,633 INFO L933 BasicCegarLoop]: 4979 mSDtfsCounter, 4970 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 4979 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 01:14:05,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4970 Valid, 4979 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:05,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:05,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.727326968973747) internal successors, (5790), 3354 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5790 transitions. [2022-01-11 01:14:05,735 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5790 transitions. Word has length 99 [2022-01-11 01:14:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:05,735 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5790 transitions. [2022-01-11 01:14:05,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5790 transitions. [2022-01-11 01:14:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:05,743 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:05,744 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] [2022-01-11 01:14:05,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:14:05,749 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:05,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 30112732, now seen corresponding path program 1 times [2022-01-11 01:14:05,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:05,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576171155] [2022-01-11 01:14:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:05,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:05,839 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 01:14:05,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:05,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576171155] [2022-01-11 01:14:05,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576171155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:05,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:05,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:05,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519838513] [2022-01-11 01:14:05,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:05,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:05,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:05,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:05,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:05,841 INFO L87 Difference]: Start difference. First operand 3355 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:05,928 INFO L93 Difference]: Finished difference Result 4573 states and 7597 transitions. [2022-01-11 01:14:05,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:05,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:05,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:05,942 INFO L225 Difference]: With dead ends: 4573 [2022-01-11 01:14:05,942 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:05,948 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 01:14:05,953 INFO L933 BasicCegarLoop]: 4974 mSDtfsCounter, 4963 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4963 SdHoareTripleChecker+Valid, 4974 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 01:14:05,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4963 Valid, 4974 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:06,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7249403341288783) internal successors, (5782), 3354 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5782 transitions. [2022-01-11 01:14:06,054 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5782 transitions. Word has length 99 [2022-01-11 01:14:06,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:06,056 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5782 transitions. [2022-01-11 01:14:06,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5782 transitions. [2022-01-11 01:14:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:06,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:06,059 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] [2022-01-11 01:14:06,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:14:06,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1423923012, now seen corresponding path program 1 times [2022-01-11 01:14:06,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:06,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092496815] [2022-01-11 01:14:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:06,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:06,151 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 01:14:06,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:06,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092496815] [2022-01-11 01:14:06,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092496815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:06,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:06,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:06,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219073227] [2022-01-11 01:14:06,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:06,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:06,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:06,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:06,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:06,156 INFO L87 Difference]: Start difference. First operand 3355 states and 5782 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:06,249 INFO L93 Difference]: Finished difference Result 4572 states and 7580 transitions. [2022-01-11 01:14:06,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:06,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:06,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:06,263 INFO L225 Difference]: With dead ends: 4572 [2022-01-11 01:14:06,264 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:06,267 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 01:14:06,274 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 4957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4969 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 01:14:06,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4957 Valid, 4969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:06,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7225536992840096) internal successors, (5774), 3354 states have internal predecessors, (5774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5774 transitions. [2022-01-11 01:14:06,368 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5774 transitions. Word has length 99 [2022-01-11 01:14:06,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:06,369 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5774 transitions. [2022-01-11 01:14:06,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5774 transitions. [2022-01-11 01:14:06,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:06,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:06,373 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] [2022-01-11 01:14:06,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:14:06,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:06,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:06,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1577213916, now seen corresponding path program 1 times [2022-01-11 01:14:06,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:06,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871166140] [2022-01-11 01:14:06,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:06,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:06,419 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 01:14:06,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:06,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871166140] [2022-01-11 01:14:06,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871166140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:06,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:06,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:06,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367801500] [2022-01-11 01:14:06,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:06,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:06,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:06,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:06,421 INFO L87 Difference]: Start difference. First operand 3355 states and 5774 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:06,736 INFO L93 Difference]: Finished difference Result 4571 states and 7563 transitions. [2022-01-11 01:14:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:06,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:06,749 INFO L225 Difference]: With dead ends: 4571 [2022-01-11 01:14:06,749 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:06,751 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 01:14:06,751 INFO L933 BasicCegarLoop]: 4964 mSDtfsCounter, 4951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 4964 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 01:14:06,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 4964 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:06,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.720167064439141) internal successors, (5766), 3354 states have internal predecessors, (5766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5766 transitions. [2022-01-11 01:14:06,861 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5766 transitions. Word has length 99 [2022-01-11 01:14:06,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:06,864 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5766 transitions. [2022-01-11 01:14:06,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:06,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5766 transitions. [2022-01-11 01:14:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:06,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:06,867 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] [2022-01-11 01:14:06,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:14:06,868 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:06,869 INFO L85 PathProgramCache]: Analyzing trace with hash 981288124, now seen corresponding path program 1 times [2022-01-11 01:14:06,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:06,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201683788] [2022-01-11 01:14:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:06,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:06,928 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 01:14:06,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201683788] [2022-01-11 01:14:06,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201683788] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:06,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:06,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:06,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924595692] [2022-01-11 01:14:06,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:06,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:06,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:06,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:06,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:06,930 INFO L87 Difference]: Start difference. First operand 3355 states and 5766 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:07,034 INFO L93 Difference]: Finished difference Result 4569 states and 7544 transitions. [2022-01-11 01:14:07,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:07,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:07,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:07,046 INFO L225 Difference]: With dead ends: 4569 [2022-01-11 01:14:07,047 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:07,050 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 01:14:07,051 INFO L933 BasicCegarLoop]: 4941 mSDtfsCounter, 4863 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:07,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4863 Valid, 5009 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7130071599045347) internal successors, (5742), 3354 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5742 transitions. [2022-01-11 01:14:07,150 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5742 transitions. Word has length 99 [2022-01-11 01:14:07,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:07,151 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5742 transitions. [2022-01-11 01:14:07,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5742 transitions. [2022-01-11 01:14:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:07,153 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:07,153 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] [2022-01-11 01:14:07,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:14:07,153 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:07,154 INFO L85 PathProgramCache]: Analyzing trace with hash 488134171, now seen corresponding path program 1 times [2022-01-11 01:14:07,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:07,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831213379] [2022-01-11 01:14:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:07,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:07,199 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 01:14:07,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:07,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831213379] [2022-01-11 01:14:07,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831213379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:07,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:07,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:07,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333959874] [2022-01-11 01:14:07,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:07,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:07,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:07,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:07,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:07,201 INFO L87 Difference]: Start difference. First operand 3355 states and 5742 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:07,332 INFO L93 Difference]: Finished difference Result 4568 states and 7495 transitions. [2022-01-11 01:14:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:07,361 INFO L225 Difference]: With dead ends: 4568 [2022-01-11 01:14:07,361 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:07,364 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 01:14:07,366 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 4849 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:07,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4849 Valid, 4994 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:14:07,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:07,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:07,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7058472553699284) internal successors, (5718), 3354 states have internal predecessors, (5718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5718 transitions. [2022-01-11 01:14:07,463 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5718 transitions. Word has length 99 [2022-01-11 01:14:07,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:07,464 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5718 transitions. [2022-01-11 01:14:07,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5718 transitions. [2022-01-11 01:14:07,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:07,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:07,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:14:07,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:14:07,466 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:07,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:07,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1925964550, now seen corresponding path program 1 times [2022-01-11 01:14:07,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:07,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833557774] [2022-01-11 01:14:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:07,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:07,516 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 01:14:07,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:07,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833557774] [2022-01-11 01:14:07,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833557774] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:07,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:07,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:07,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530738409] [2022-01-11 01:14:07,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:07,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:07,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:07,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:07,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:07,519 INFO L87 Difference]: Start difference. First operand 3355 states and 5718 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:07,635 INFO L93 Difference]: Finished difference Result 4567 states and 7446 transitions. [2022-01-11 01:14:07,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:07,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:07,643 INFO L225 Difference]: With dead ends: 4567 [2022-01-11 01:14:07,643 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:07,646 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 01:14:07,646 INFO L933 BasicCegarLoop]: 4913 mSDtfsCounter, 4835 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:07,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4835 Valid, 4979 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:07,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:07,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:07,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6986873508353222) internal successors, (5694), 3354 states have internal predecessors, (5694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5694 transitions. [2022-01-11 01:14:07,744 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5694 transitions. Word has length 99 [2022-01-11 01:14:07,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:07,744 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5694 transitions. [2022-01-11 01:14:07,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5694 transitions. [2022-01-11 01:14:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:07,746 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:07,746 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] [2022-01-11 01:14:07,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:14:07,746 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176999, now seen corresponding path program 1 times [2022-01-11 01:14:07,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:07,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373792352] [2022-01-11 01:14:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:07,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:07,795 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 01:14:07,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:07,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373792352] [2022-01-11 01:14:07,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373792352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:07,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:07,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:07,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776152052] [2022-01-11 01:14:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:07,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:07,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:07,798 INFO L87 Difference]: Start difference. First operand 3355 states and 5694 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:07,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:07,900 INFO L93 Difference]: Finished difference Result 4566 states and 7397 transitions. [2022-01-11 01:14:07,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:07,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:07,907 INFO L225 Difference]: With dead ends: 4566 [2022-01-11 01:14:07,907 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:07,911 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 01:14:07,912 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4821 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:07,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4821 Valid, 4964 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:07,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.691527446300716) internal successors, (5670), 3354 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5670 transitions. [2022-01-11 01:14:08,006 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5670 transitions. Word has length 99 [2022-01-11 01:14:08,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:08,007 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5670 transitions. [2022-01-11 01:14:08,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5670 transitions. [2022-01-11 01:14:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:08,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:08,011 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] [2022-01-11 01:14:08,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:14:08,011 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:08,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1730026952, now seen corresponding path program 1 times [2022-01-11 01:14:08,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:08,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180326707] [2022-01-11 01:14:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:08,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:08,051 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 01:14:08,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:08,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180326707] [2022-01-11 01:14:08,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180326707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:08,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:08,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:08,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402259873] [2022-01-11 01:14:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:08,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:08,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:08,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:08,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:08,053 INFO L87 Difference]: Start difference. First operand 3355 states and 5670 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:08,170 INFO L93 Difference]: Finished difference Result 4565 states and 7348 transitions. [2022-01-11 01:14:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:08,178 INFO L225 Difference]: With dead ends: 4565 [2022-01-11 01:14:08,179 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:08,182 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 01:14:08,184 INFO L933 BasicCegarLoop]: 4885 mSDtfsCounter, 4807 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:08,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4807 Valid, 4949 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6843675417661097) internal successors, (5646), 3354 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5646 transitions. [2022-01-11 01:14:08,435 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5646 transitions. Word has length 99 [2022-01-11 01:14:08,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:08,435 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5646 transitions. [2022-01-11 01:14:08,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5646 transitions. [2022-01-11 01:14:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:08,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:08,437 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] [2022-01-11 01:14:08,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:14:08,437 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:08,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:08,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1258729864, now seen corresponding path program 1 times [2022-01-11 01:14:08,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:08,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463938044] [2022-01-11 01:14:08,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:08,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:08,473 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 01:14:08,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:08,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463938044] [2022-01-11 01:14:08,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463938044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:08,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:08,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:08,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392708013] [2022-01-11 01:14:08,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:08,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:08,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:08,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:08,475 INFO L87 Difference]: Start difference. First operand 3355 states and 5646 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:08,585 INFO L93 Difference]: Finished difference Result 4564 states and 7299 transitions. [2022-01-11 01:14:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:08,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:08,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:08,593 INFO L225 Difference]: With dead ends: 4564 [2022-01-11 01:14:08,593 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:08,596 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 01:14:08,597 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4793 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:08,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4793 Valid, 4934 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:08,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6772076372315037) internal successors, (5622), 3354 states have internal predecessors, (5622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5622 transitions. [2022-01-11 01:14:08,700 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5622 transitions. Word has length 99 [2022-01-11 01:14:08,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:08,700 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5622 transitions. [2022-01-11 01:14:08,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5622 transitions. [2022-01-11 01:14:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:08,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:08,702 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] [2022-01-11 01:14:08,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:14:08,702 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:08,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 538191256, now seen corresponding path program 1 times [2022-01-11 01:14:08,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:08,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146732643] [2022-01-11 01:14:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:08,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:08,745 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 01:14:08,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:08,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146732643] [2022-01-11 01:14:08,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146732643] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:08,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:08,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:08,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199872160] [2022-01-11 01:14:08,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:08,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:08,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:08,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:08,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:08,747 INFO L87 Difference]: Start difference. First operand 3355 states and 5622 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:08,867 INFO L93 Difference]: Finished difference Result 4563 states and 7250 transitions. [2022-01-11 01:14:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:08,876 INFO L225 Difference]: With dead ends: 4563 [2022-01-11 01:14:08,876 INFO L226 Difference]: Without dead ends: 3355 [2022-01-11 01:14:08,879 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 01:14:08,880 INFO L933 BasicCegarLoop]: 4857 mSDtfsCounter, 4779 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 4919 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:08,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4779 Valid, 4919 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:08,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-11 01:14:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-11 01:14:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6700477326968974) internal successors, (5598), 3354 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5598 transitions. [2022-01-11 01:14:08,984 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5598 transitions. Word has length 99 [2022-01-11 01:14:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:08,984 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5598 transitions. [2022-01-11 01:14:08,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:08,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5598 transitions. [2022-01-11 01:14:08,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:08,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:08,986 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] [2022-01-11 01:14:08,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:14:08,986 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1446366601, now seen corresponding path program 1 times [2022-01-11 01:14:08,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:08,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686540432] [2022-01-11 01:14:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:08,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:09,052 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 01:14:09,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:09,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686540432] [2022-01-11 01:14:09,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686540432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:09,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:09,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:14:09,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42719138] [2022-01-11 01:14:09,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:09,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:14:09,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:09,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:14:09,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:14:09,054 INFO L87 Difference]: Start difference. First operand 3355 states and 5598 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:09,340 INFO L93 Difference]: Finished difference Result 5183 states and 8069 transitions. [2022-01-11 01:14:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:14:09,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:09,348 INFO L225 Difference]: With dead ends: 5183 [2022-01-11 01:14:09,349 INFO L226 Difference]: Without dead ends: 3989 [2022-01-11 01:14:09,352 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 01:14:09,353 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2439 mSDsluCounter, 13248 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 18179 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:09,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2439 Valid, 18179 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:14:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-01-11 01:14:09,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3361. [2022-01-11 01:14:09,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3358 states have (on average 1.6640857653365098) internal successors, (5588), 3360 states have internal predecessors, (5588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 5588 transitions. [2022-01-11 01:14:09,482 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 5588 transitions. Word has length 99 [2022-01-11 01:14:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:09,483 INFO L470 AbstractCegarLoop]: Abstraction has 3361 states and 5588 transitions. [2022-01-11 01:14:09,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 5588 transitions. [2022-01-11 01:14:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:09,484 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:09,484 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] [2022-01-11 01:14:09,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:14:09,485 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:09,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1681904376, now seen corresponding path program 1 times [2022-01-11 01:14:09,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786797273] [2022-01-11 01:14:09,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:09,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:09,543 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 01:14:09,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:09,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786797273] [2022-01-11 01:14:09,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786797273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:09,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:09,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:14:09,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301242937] [2022-01-11 01:14:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:14:09,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:14:09,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:14:09,545 INFO L87 Difference]: Start difference. First operand 3361 states and 5588 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:09,832 INFO L93 Difference]: Finished difference Result 5582 states and 8543 transitions. [2022-01-11 01:14:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:14:09,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:09,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:09,842 INFO L225 Difference]: With dead ends: 5582 [2022-01-11 01:14:09,842 INFO L226 Difference]: Without dead ends: 4417 [2022-01-11 01:14:09,846 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 01:14:09,846 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 1878 mSDsluCounter, 14268 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 19098 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:09,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1878 Valid, 19098 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:14:09,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states. [2022-01-11 01:14:09,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 3367. [2022-01-11 01:14:09,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6581450653983354) internal successors, (5578), 3366 states have internal predecessors, (5578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5578 transitions. [2022-01-11 01:14:09,985 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5578 transitions. Word has length 99 [2022-01-11 01:14:09,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:09,985 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5578 transitions. [2022-01-11 01:14:09,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5578 transitions. [2022-01-11 01:14:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:09,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:09,986 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] [2022-01-11 01:14:09,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:14:09,987 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:09,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:09,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2032704313, now seen corresponding path program 1 times [2022-01-11 01:14:10,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:10,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515247727] [2022-01-11 01:14:10,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:10,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:10,073 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 01:14:10,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:10,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515247727] [2022-01-11 01:14:10,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515247727] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:10,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:10,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:10,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790814981] [2022-01-11 01:14:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:10,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:10,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:10,075 INFO L87 Difference]: Start difference. First operand 3367 states and 5578 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:10,225 INFO L93 Difference]: Finished difference Result 4598 states and 7175 transitions. [2022-01-11 01:14:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:10,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:10,233 INFO L225 Difference]: With dead ends: 4598 [2022-01-11 01:14:10,234 INFO L226 Difference]: Without dead ends: 3367 [2022-01-11 01:14:10,239 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 01:14:10,240 INFO L933 BasicCegarLoop]: 4843 mSDtfsCounter, 4776 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 4843 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 01:14:10,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4776 Valid, 4843 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:10,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-11 01:14:10,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-11 01:14:10,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6557669441141498) internal successors, (5570), 3366 states have internal predecessors, (5570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5570 transitions. [2022-01-11 01:14:10,403 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5570 transitions. Word has length 99 [2022-01-11 01:14:10,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:10,403 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5570 transitions. [2022-01-11 01:14:10,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5570 transitions. [2022-01-11 01:14:10,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:10,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:10,405 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] [2022-01-11 01:14:10,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:14:10,405 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:10,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1300648966, now seen corresponding path program 1 times [2022-01-11 01:14:10,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:10,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638669755] [2022-01-11 01:14:10,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:10,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:10,465 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 01:14:10,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:10,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638669755] [2022-01-11 01:14:10,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638669755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:10,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:10,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:10,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711112502] [2022-01-11 01:14:10,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:10,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:10,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:10,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:10,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:10,469 INFO L87 Difference]: Start difference. First operand 3367 states and 5570 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:10,616 INFO L93 Difference]: Finished difference Result 4594 states and 7155 transitions. [2022-01-11 01:14:10,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:10,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:10,624 INFO L225 Difference]: With dead ends: 4594 [2022-01-11 01:14:10,625 INFO L226 Difference]: Without dead ends: 3367 [2022-01-11 01:14:10,628 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 01:14:10,629 INFO L933 BasicCegarLoop]: 4838 mSDtfsCounter, 4767 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 4838 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 01:14:10,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 4838 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:10,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-11 01:14:10,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-11 01:14:10,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6533888228299642) internal successors, (5562), 3366 states have internal predecessors, (5562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5562 transitions. [2022-01-11 01:14:10,808 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5562 transitions. Word has length 99 [2022-01-11 01:14:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:10,809 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5562 transitions. [2022-01-11 01:14:10,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5562 transitions. [2022-01-11 01:14:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-11 01:14:10,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:10,810 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] [2022-01-11 01:14:10,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:14:10,810 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:10,811 INFO L85 PathProgramCache]: Analyzing trace with hash -55884485, now seen corresponding path program 1 times [2022-01-11 01:14:10,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:10,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176807340] [2022-01-11 01:14:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:10,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:10,884 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 01:14:10,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:10,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176807340] [2022-01-11 01:14:10,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176807340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:10,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:10,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:14:10,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016114804] [2022-01-11 01:14:10,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:10,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:10,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:10,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:10,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:10,886 INFO L87 Difference]: Start difference. First operand 3367 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:11,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:11,152 INFO L93 Difference]: Finished difference Result 5702 states and 8572 transitions. [2022-01-11 01:14:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-11 01:14:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:11,163 INFO L225 Difference]: With dead ends: 5702 [2022-01-11 01:14:11,164 INFO L226 Difference]: Without dead ends: 4484 [2022-01-11 01:14:11,167 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 01:14:11,168 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 4708 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:11,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4708 Valid, 5582 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:11,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2022-01-11 01:14:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4382. [2022-01-11 01:14:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4379 states have (on average 1.5656542589632336) internal successors, (6856), 4381 states have internal predecessors, (6856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 6856 transitions. [2022-01-11 01:14:11,418 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 6856 transitions. Word has length 99 [2022-01-11 01:14:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:11,419 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 6856 transitions. [2022-01-11 01:14:11,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:11,419 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 6856 transitions. [2022-01-11 01:14:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 01:14:11,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:11,422 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] [2022-01-11 01:14:11,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:14:11,423 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:11,424 INFO L85 PathProgramCache]: Analyzing trace with hash -765661067, now seen corresponding path program 1 times [2022-01-11 01:14:11,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:11,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933854180] [2022-01-11 01:14:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:11,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:11,486 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 01:14:11,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:11,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933854180] [2022-01-11 01:14:11,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933854180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:11,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:11,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:11,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158769470] [2022-01-11 01:14:11,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:11,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:11,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:11,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:11,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:11,488 INFO L87 Difference]: Start difference. First operand 4382 states and 6856 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:11,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:11,920 INFO L93 Difference]: Finished difference Result 8703 states and 12410 transitions. [2022-01-11 01:14:11,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:11,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2022-01-11 01:14:11,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:11,936 INFO L225 Difference]: With dead ends: 8703 [2022-01-11 01:14:11,936 INFO L226 Difference]: Without dead ends: 6476 [2022-01-11 01:14:11,942 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 01:14:11,943 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4734 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:11,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 5579 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2022-01-11 01:14:12,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 6300. [2022-01-11 01:14:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 6297 states have (on average 1.4781642051770685) internal successors, (9308), 6299 states have internal predecessors, (9308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:12,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 9308 transitions. [2022-01-11 01:14:12,342 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 9308 transitions. Word has length 160 [2022-01-11 01:14:12,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:12,343 INFO L470 AbstractCegarLoop]: Abstraction has 6300 states and 9308 transitions. [2022-01-11 01:14:12,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 9308 transitions. [2022-01-11 01:14:12,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 01:14:12,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:12,347 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] [2022-01-11 01:14:12,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:14:12,347 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:12,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:12,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1410631733, now seen corresponding path program 1 times [2022-01-11 01:14:12,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:12,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087013237] [2022-01-11 01:14:12,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:12,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:12,417 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 01:14:12,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:12,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087013237] [2022-01-11 01:14:12,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087013237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:12,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:12,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:12,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971053374] [2022-01-11 01:14:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:12,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:12,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:12,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:12,420 INFO L87 Difference]: Start difference. First operand 6300 states and 9308 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:13,026 INFO L93 Difference]: Finished difference Result 14205 states and 19346 transitions. [2022-01-11 01:14:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:13,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2022-01-11 01:14:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:13,048 INFO L225 Difference]: With dead ends: 14205 [2022-01-11 01:14:13,048 INFO L226 Difference]: Without dead ends: 10115 [2022-01-11 01:14:13,054 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 01:14:13,055 INFO L933 BasicCegarLoop]: 5242 mSDtfsCounter, 4594 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 6103 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 01:14:13,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4594 Valid, 6103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2022-01-11 01:14:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 10111. [2022-01-11 01:14:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 10108 states have (on average 1.3917688959240206) internal successors, (14068), 10110 states have internal predecessors, (14068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 14068 transitions. [2022-01-11 01:14:13,642 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 14068 transitions. Word has length 160 [2022-01-11 01:14:13,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:13,643 INFO L470 AbstractCegarLoop]: Abstraction has 10111 states and 14068 transitions. [2022-01-11 01:14:13,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 14068 transitions. [2022-01-11 01:14:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-11 01:14:13,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:13,649 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] [2022-01-11 01:14:13,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:14:13,649 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:13,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:13,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1104997204, now seen corresponding path program 1 times [2022-01-11 01:14:13,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:13,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996742692] [2022-01-11 01:14:13,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:13,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:13,685 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 01:14:13,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:13,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996742692] [2022-01-11 01:14:13,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996742692] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:13,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:13,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:13,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611517994] [2022-01-11 01:14:13,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:13,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:13,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:13,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:13,687 INFO L87 Difference]: Start difference. First operand 10111 states and 14068 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:14,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:14,265 INFO L93 Difference]: Finished difference Result 17929 states and 23974 transitions. [2022-01-11 01:14:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:14,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 160 [2022-01-11 01:14:14,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:14,289 INFO L225 Difference]: With dead ends: 17929 [2022-01-11 01:14:14,289 INFO L226 Difference]: Without dead ends: 10028 [2022-01-11 01:14:14,304 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 01:14:14,305 INFO L933 BasicCegarLoop]: 4837 mSDtfsCounter, 875 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 8795 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 01:14:14,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 8795 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2022-01-11 01:14:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 10028. [2022-01-11 01:14:14,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 10025 states have (on average 1.393416458852868) internal successors, (13969), 10027 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 13969 transitions. [2022-01-11 01:14:14,903 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 13969 transitions. Word has length 160 [2022-01-11 01:14:14,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:14,903 INFO L470 AbstractCegarLoop]: Abstraction has 10028 states and 13969 transitions. [2022-01-11 01:14:14,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 13969 transitions. [2022-01-11 01:14:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-11 01:14:14,909 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:14,909 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] [2022-01-11 01:14:14,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:14:14,910 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:14,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1650772127, now seen corresponding path program 1 times [2022-01-11 01:14:14,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:14,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781620626] [2022-01-11 01:14:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:14,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:14,969 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 01:14:14,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781620626] [2022-01-11 01:14:14,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781620626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:14,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:14,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:14,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465176576] [2022-01-11 01:14:14,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:14,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:14,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:14,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:14,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:14,973 INFO L87 Difference]: Start difference. First operand 10028 states and 13969 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:15,885 INFO L93 Difference]: Finished difference Result 25266 states and 33189 transitions. [2022-01-11 01:14:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:15,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2022-01-11 01:14:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:15,936 INFO L225 Difference]: With dead ends: 25266 [2022-01-11 01:14:15,936 INFO L226 Difference]: Without dead ends: 17448 [2022-01-11 01:14:15,955 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 01:14:15,955 INFO L933 BasicCegarLoop]: 5043 mSDtfsCounter, 4735 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:15,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5893 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:15,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17448 states. [2022-01-11 01:14:16,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17448 to 16932. [2022-01-11 01:14:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16932 states, 16929 states have (on average 1.3350463701340893) internal successors, (22601), 16931 states have internal predecessors, (22601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16932 states to 16932 states and 22601 transitions. [2022-01-11 01:14:16,836 INFO L78 Accepts]: Start accepts. Automaton has 16932 states and 22601 transitions. Word has length 161 [2022-01-11 01:14:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:16,837 INFO L470 AbstractCegarLoop]: Abstraction has 16932 states and 22601 transitions. [2022-01-11 01:14:16,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 16932 states and 22601 transitions. [2022-01-11 01:14:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-11 01:14:16,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:16,846 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] [2022-01-11 01:14:16,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:14:16,847 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:16,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:16,847 INFO L85 PathProgramCache]: Analyzing trace with hash 307592064, now seen corresponding path program 1 times [2022-01-11 01:14:16,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:16,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078357672] [2022-01-11 01:14:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:16,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:16,879 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 01:14:16,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:16,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078357672] [2022-01-11 01:14:16,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078357672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:16,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:16,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:16,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774620435] [2022-01-11 01:14:16,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:16,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:16,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:16,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:16,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:16,881 INFO L87 Difference]: Start difference. First operand 16932 states and 22601 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:17,756 INFO L93 Difference]: Finished difference Result 31616 states and 41094 transitions. [2022-01-11 01:14:17,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:17,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 161 [2022-01-11 01:14:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:17,797 INFO L225 Difference]: With dead ends: 31616 [2022-01-11 01:14:17,797 INFO L226 Difference]: Without dead ends: 16850 [2022-01-11 01:14:17,819 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 01:14:17,820 INFO L933 BasicCegarLoop]: 4836 mSDtfsCounter, 873 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 8794 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 01:14:17,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 8794 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:17,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states. [2022-01-11 01:14:18,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 16850. [2022-01-11 01:14:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16850 states, 16847 states have (on average 1.3357867869650384) internal successors, (22504), 16849 states have internal predecessors, (22504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16850 states to 16850 states and 22504 transitions. [2022-01-11 01:14:18,693 INFO L78 Accepts]: Start accepts. Automaton has 16850 states and 22504 transitions. Word has length 161 [2022-01-11 01:14:18,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:18,694 INFO L470 AbstractCegarLoop]: Abstraction has 16850 states and 22504 transitions. [2022-01-11 01:14:18,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 16850 states and 22504 transitions. [2022-01-11 01:14:18,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-11 01:14:18,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:18,703 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] [2022-01-11 01:14:18,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:14:18,703 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:18,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1783421796, now seen corresponding path program 1 times [2022-01-11 01:14:18,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:18,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280638126] [2022-01-11 01:14:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:18,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:18,761 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 01:14:18,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:18,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280638126] [2022-01-11 01:14:18,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280638126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:18,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:18,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:18,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095927036] [2022-01-11 01:14:18,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:18,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:18,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:18,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:18,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:18,763 INFO L87 Difference]: Start difference. First operand 16850 states and 22504 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:20,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:20,158 INFO L93 Difference]: Finished difference Result 45147 states and 58058 transitions. [2022-01-11 01:14:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 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 162 [2022-01-11 01:14:20,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:20,221 INFO L225 Difference]: With dead ends: 45147 [2022-01-11 01:14:20,222 INFO L226 Difference]: Without dead ends: 30507 [2022-01-11 01:14:20,249 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 01:14:20,250 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4623 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:14:20,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4623 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:14:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30507 states. [2022-01-11 01:14:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30507 to 29703. [2022-01-11 01:14:21,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29703 states, 29700 states have (on average 1.2985185185185186) internal successors, (38566), 29702 states have internal predecessors, (38566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29703 states to 29703 states and 38566 transitions. [2022-01-11 01:14:21,771 INFO L78 Accepts]: Start accepts. Automaton has 29703 states and 38566 transitions. Word has length 162 [2022-01-11 01:14:21,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:21,772 INFO L470 AbstractCegarLoop]: Abstraction has 29703 states and 38566 transitions. [2022-01-11 01:14:21,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 29703 states and 38566 transitions. [2022-01-11 01:14:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-11 01:14:21,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:21,789 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] [2022-01-11 01:14:21,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:14:21,789 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:21,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:21,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1477787267, now seen corresponding path program 1 times [2022-01-11 01:14:21,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:21,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783033114] [2022-01-11 01:14:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:21,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:21,823 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 01:14:21,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:21,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783033114] [2022-01-11 01:14:21,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783033114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:21,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:21,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:21,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809194312] [2022-01-11 01:14:21,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:21,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:21,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:21,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:21,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:21,825 INFO L87 Difference]: Start difference. First operand 29703 states and 38566 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:23,432 INFO L93 Difference]: Finished difference Result 57152 states and 73018 transitions. [2022-01-11 01:14:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-01-11 01:14:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:23,501 INFO L225 Difference]: With dead ends: 57152 [2022-01-11 01:14:23,502 INFO L226 Difference]: Without dead ends: 29622 [2022-01-11 01:14:23,548 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 01:14:23,549 INFO L933 BasicCegarLoop]: 4835 mSDtfsCounter, 871 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 8793 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 01:14:23,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 8793 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29622 states. [2022-01-11 01:14:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29622 to 29622. [2022-01-11 01:14:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29622 states, 29619 states have (on average 1.2988622168202844) internal successors, (38471), 29621 states have internal predecessors, (38471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29622 states to 29622 states and 38471 transitions. [2022-01-11 01:14:25,178 INFO L78 Accepts]: Start accepts. Automaton has 29622 states and 38471 transitions. Word has length 162 [2022-01-11 01:14:25,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:25,178 INFO L470 AbstractCegarLoop]: Abstraction has 29622 states and 38471 transitions. [2022-01-11 01:14:25,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 29622 states and 38471 transitions. [2022-01-11 01:14:25,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-11 01:14:25,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:25,195 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] [2022-01-11 01:14:25,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:14:25,195 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:25,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1867685166, now seen corresponding path program 1 times [2022-01-11 01:14:25,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650967776] [2022-01-11 01:14:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:25,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:25,260 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 01:14:25,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:25,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650967776] [2022-01-11 01:14:25,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650967776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:25,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:25,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:25,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943905055] [2022-01-11 01:14:25,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:25,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:25,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:25,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:25,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:25,262 INFO L87 Difference]: Start difference. First operand 29622 states and 38471 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:28,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:28,303 INFO L93 Difference]: Finished difference Result 82046 states and 104151 transitions. [2022-01-11 01:14:28,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:28,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2022-01-11 01:14:28,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:28,413 INFO L225 Difference]: With dead ends: 82046 [2022-01-11 01:14:28,414 INFO L226 Difference]: Without dead ends: 54634 [2022-01-11 01:14:28,447 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 01:14:28,447 INFO L933 BasicCegarLoop]: 5046 mSDtfsCounter, 4735 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5892 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 01:14:28,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54634 states. [2022-01-11 01:14:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54634 to 53478. [2022-01-11 01:14:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53478 states, 53475 states have (on average 1.276166432912576) internal successors, (68243), 53477 states have internal predecessors, (68243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53478 states to 53478 states and 68243 transitions. [2022-01-11 01:14:31,556 INFO L78 Accepts]: Start accepts. Automaton has 53478 states and 68243 transitions. Word has length 163 [2022-01-11 01:14:31,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:31,557 INFO L470 AbstractCegarLoop]: Abstraction has 53478 states and 68243 transitions. [2022-01-11 01:14:31,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:31,557 INFO L276 IsEmpty]: Start isEmpty. Operand 53478 states and 68243 transitions. [2022-01-11 01:14:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-11 01:14:31,577 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:31,577 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] [2022-01-11 01:14:31,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:14:31,577 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:31,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1326597489, now seen corresponding path program 1 times [2022-01-11 01:14:31,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:31,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257995430] [2022-01-11 01:14:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:31,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:31,616 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 01:14:31,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:31,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257995430] [2022-01-11 01:14:31,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257995430] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:31,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:31,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:31,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669590615] [2022-01-11 01:14:31,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:31,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:31,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:31,619 INFO L87 Difference]: Start difference. First operand 53478 states and 68243 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:34,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:14:34,811 INFO L93 Difference]: Finished difference Result 104696 states and 132366 transitions. [2022-01-11 01:14:34,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:14:34,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 163 [2022-01-11 01:14:34,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:14:34,910 INFO L225 Difference]: With dead ends: 104696 [2022-01-11 01:14:34,910 INFO L226 Difference]: Without dead ends: 53398 [2022-01-11 01:14:34,953 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 01:14:34,954 INFO L933 BasicCegarLoop]: 4834 mSDtfsCounter, 869 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 8792 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 01:14:34,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 8792 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:14:34,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53398 states. [2022-01-11 01:14:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53398 to 53398. [2022-01-11 01:14:38,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53398 states, 53395 states have (on average 1.2763367356494053) internal successors, (68150), 53397 states have internal predecessors, (68150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53398 states to 53398 states and 68150 transitions. [2022-01-11 01:14:38,241 INFO L78 Accepts]: Start accepts. Automaton has 53398 states and 68150 transitions. Word has length 163 [2022-01-11 01:14:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:14:38,241 INFO L470 AbstractCegarLoop]: Abstraction has 53398 states and 68150 transitions. [2022-01-11 01:14:38,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:14:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 53398 states and 68150 transitions. [2022-01-11 01:14:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-11 01:14:38,256 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:14:38,256 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] [2022-01-11 01:14:38,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:14:38,257 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:14:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:14:38,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1445804388, now seen corresponding path program 1 times [2022-01-11 01:14:38,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:14:38,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332573303] [2022-01-11 01:14:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:14:38,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:14:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:14:38,311 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 01:14:38,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:14:38,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332573303] [2022-01-11 01:14:38,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332573303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:14:38,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:14:38,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:14:38,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796221282] [2022-01-11 01:14:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:14:38,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:14:38,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:14:38,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:14:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:14:38,313 INFO L87 Difference]: Start difference. First operand 53398 states and 68150 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)