/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_label49+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:22:40,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:22:40,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:22:40,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 01:22:40,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 01:22:40,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 01:22:40,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 01:22:40,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 01:22:40,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 01:22:40,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 01:22:40,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 01:22:40,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 01:22:40,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:22:40,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:22:40,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:22:40,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:22:40,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:22:40,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:22:40,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:22:40,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:22:40,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:22:40,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:22:40,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:22:40,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:22:40,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:22:40,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:22:40,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:22:40,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:22:40,871 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 01:22:40,895 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:22:40,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:22:40,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:22:40,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:22:40,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:22:40,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:22:40,897 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:22:40,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:22:40,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:22:40,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:22:40,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:22:40,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:22:40,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:22:40,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:22:40,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:22:40,899 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:22:40,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:22:40,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:22:40,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:22:40,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:22:40,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:22:40,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:22:40,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:22:40,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:22:40,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:22:40,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:22:40,902 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:22:40,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:22:41,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:22:41,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:22:41,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:22:41,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:22:41,137 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:22:41,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c [2022-01-11 01:22:41,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a19820c/08004abfc7cc47b1a2a2e61194583207/FLAG6608fb07c [2022-01-11 01:22:41,858 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:22:41,858 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c [2022-01-11 01:22:41,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a19820c/08004abfc7cc47b1a2a2e61194583207/FLAG6608fb07c [2022-01-11 01:22:41,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a19820c/08004abfc7cc47b1a2a2e61194583207 [2022-01-11 01:22:41,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:22:41,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:22:41,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:22:41,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:22:41,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:22:41,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:22:41" (1/1) ... [2022-01-11 01:22:41,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5123e4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:41, skipping insertion in model container [2022-01-11 01:22:41,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:22:41" (1/1) ... [2022-01-11 01:22:41,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:22:42,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:22:43,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c[380593,380606] [2022-01-11 01:22:43,582 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c[383339,383352] [2022-01-11 01:22:43,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:22:43,843 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:22:44,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c[380593,380606] [2022-01-11 01:22:44,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.07.cil-2.c[383339,383352] [2022-01-11 01:22:44,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:22:44,705 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:22:44,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44 WrapperNode [2022-01-11 01:22:44,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:22:44,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:22:44,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:22:44,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:22:44,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:44,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,053 INFO L137 Inliner]: procedures = 59, calls = 63, calls flagged for inlining = 58, calls inlined = 145, statements flattened = 14336 [2022-01-11 01:22:45,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:22:45,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:22:45,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:22:45,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:22:45,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:22:45,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:22:45,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:22:45,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:22:45,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (1/1) ... [2022-01-11 01:22:45,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:22:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:22:45,741 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 01:22:45,746 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 01:22:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:22:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:22:45,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:22:45,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:22:45,918 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:22:45,919 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:22:53,672 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:22:53,695 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:22:53,695 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-11 01:22:53,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:53 BoogieIcfgContainer [2022-01-11 01:22:53,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:22:53,700 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:22:53,700 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:22:53,701 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:22:53,703 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:53" (1/1) ... [2022-01-11 01:22:55,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:22:55 BasicIcfg [2022-01-11 01:22:55,038 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:22:55,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:22:55,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:22:55,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:22:55,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:22:41" (1/4) ... [2022-01-11 01:22:55,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbc24ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:22:55, skipping insertion in model container [2022-01-11 01:22:55,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:22:44" (2/4) ... [2022-01-11 01:22:55,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbc24ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:22:55, skipping insertion in model container [2022-01-11 01:22:55,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:22:53" (3/4) ... [2022-01-11 01:22:55,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbc24ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:22:55, skipping insertion in model container [2022-01-11 01:22:55,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:22:55" (4/4) ... [2022-01-11 01:22:55,043 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.07.cil-2.cTransformedIcfg [2022-01-11 01:22:55,047 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:22:55,047 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:22:55,091 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:22:55,097 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 01:22:55,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:22:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:55,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:55,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:55,158 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 01:22:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:55,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1118785845, now seen corresponding path program 1 times [2022-01-11 01:22:55,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:55,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147053739] [2022-01-11 01:22:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:55,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:55,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:55,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:55,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147053739] [2022-01-11 01:22:55,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147053739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:55,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:55,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:55,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687460186] [2022-01-11 01:22:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:55,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:55,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:55,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:55,591 INFO L87 Difference]: Start difference. First operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 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 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:55,835 INFO L93 Difference]: Finished difference Result 6722 states and 11736 transitions. [2022-01-11 01:22:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:55,863 INFO L225 Difference]: With dead ends: 6722 [2022-01-11 01:22:55,863 INFO L226 Difference]: Without dead ends: 3638 [2022-01-11 01:22:55,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:55,877 INFO L933 BasicCegarLoop]: 5273 mSDtfsCounter, 5177 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 6358 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 01:22:55,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 6358 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:22:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2022-01-11 01:22:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3634. [2022-01-11 01:22:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.710272652161939) internal successors, (6210), 3633 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6210 transitions. [2022-01-11 01:22:56,019 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6210 transitions. Word has length 110 [2022-01-11 01:22:56,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:56,020 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6210 transitions. [2022-01-11 01:22:56,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6210 transitions. [2022-01-11 01:22:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:56,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:56,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:56,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:22:56,028 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 01:22:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1296351509, now seen corresponding path program 1 times [2022-01-11 01:22:56,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:56,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929490591] [2022-01-11 01:22:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:56,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:56,111 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 01:22:56,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:56,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929490591] [2022-01-11 01:22:56,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929490591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:56,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:56,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:56,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846087507] [2022-01-11 01:22:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:56,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:56,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:56,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:56,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,114 INFO L87 Difference]: Start difference. First operand 3634 states and 6210 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:56,177 INFO L93 Difference]: Finished difference Result 5132 states and 8438 transitions. [2022-01-11 01:22:56,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:56,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:56,188 INFO L225 Difference]: With dead ends: 5132 [2022-01-11 01:22:56,189 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:56,194 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 01:22:56,194 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 5190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5190 SdHoareTripleChecker+Valid, 5200 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 01:22:56,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5190 Valid, 5200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:56,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7080694023684935) internal successors, (6202), 3633 states have internal predecessors, (6202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6202 transitions. [2022-01-11 01:22:56,259 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6202 transitions. Word has length 110 [2022-01-11 01:22:56,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:56,259 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6202 transitions. [2022-01-11 01:22:56,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6202 transitions. [2022-01-11 01:22:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:56,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:56,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:56,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:22:56,272 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 01:22:56,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:56,272 INFO L85 PathProgramCache]: Analyzing trace with hash -609342773, now seen corresponding path program 1 times [2022-01-11 01:22:56,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:56,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287778472] [2022-01-11 01:22:56,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:56,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:56,341 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 01:22:56,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:56,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287778472] [2022-01-11 01:22:56,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287778472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:56,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:56,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:56,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093926156] [2022-01-11 01:22:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:56,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:56,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,343 INFO L87 Difference]: Start difference. First operand 3634 states and 6202 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:56,404 INFO L93 Difference]: Finished difference Result 5131 states and 8421 transitions. [2022-01-11 01:22:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:56,416 INFO L225 Difference]: With dead ends: 5131 [2022-01-11 01:22:56,416 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:56,422 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 01:22:56,425 INFO L933 BasicCegarLoop]: 5195 mSDtfsCounter, 5184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5184 SdHoareTripleChecker+Valid, 5195 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 01:22:56,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5184 Valid, 5195 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:56,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7058661525750483) internal successors, (6194), 3633 states have internal predecessors, (6194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6194 transitions. [2022-01-11 01:22:56,495 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6194 transitions. Word has length 110 [2022-01-11 01:22:56,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:56,495 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6194 transitions. [2022-01-11 01:22:56,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6194 transitions. [2022-01-11 01:22:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:56,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:56,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:56,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:22:56,497 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 01:22:56,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash -725728533, now seen corresponding path program 1 times [2022-01-11 01:22:56,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:56,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649625966] [2022-01-11 01:22:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:56,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:56,575 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 01:22:56,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:56,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649625966] [2022-01-11 01:22:56,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649625966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:56,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:56,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:56,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775431390] [2022-01-11 01:22:56,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:56,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:56,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,578 INFO L87 Difference]: Start difference. First operand 3634 states and 6194 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:56,651 INFO L93 Difference]: Finished difference Result 5130 states and 8404 transitions. [2022-01-11 01:22:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:56,662 INFO L225 Difference]: With dead ends: 5130 [2022-01-11 01:22:56,662 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:56,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,672 INFO L933 BasicCegarLoop]: 5190 mSDtfsCounter, 5178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 5190 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 01:22:56,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 5190 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7036629027816028) internal successors, (6186), 3633 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6186 transitions. [2022-01-11 01:22:56,760 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6186 transitions. Word has length 110 [2022-01-11 01:22:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:56,760 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6186 transitions. [2022-01-11 01:22:56,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6186 transitions. [2022-01-11 01:22:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:56,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:56,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:56,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:22:56,762 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 01:22:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:56,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1422219573, now seen corresponding path program 1 times [2022-01-11 01:22:56,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:56,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841894960] [2022-01-11 01:22:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:56,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:56,872 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 01:22:56,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:56,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841894960] [2022-01-11 01:22:56,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841894960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:56,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:56,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:56,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944892084] [2022-01-11 01:22:56,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:56,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:56,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:56,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:56,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:56,874 INFO L87 Difference]: Start difference. First operand 3634 states and 6186 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:56,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:56,935 INFO L93 Difference]: Finished difference Result 5129 states and 8387 transitions. [2022-01-11 01:22:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:56,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:56,945 INFO L225 Difference]: With dead ends: 5129 [2022-01-11 01:22:56,946 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:56,948 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 01:22:56,949 INFO L933 BasicCegarLoop]: 5185 mSDtfsCounter, 5172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 5185 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 01:22:56,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5172 Valid, 5185 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:57,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7014596529881576) internal successors, (6178), 3633 states have internal predecessors, (6178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6178 transitions. [2022-01-11 01:22:57,036 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6178 transitions. Word has length 110 [2022-01-11 01:22:57,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,039 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6178 transitions. [2022-01-11 01:22:57,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6178 transitions. [2022-01-11 01:22:57,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:57,042 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:22:57,042 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 01:22:57,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,043 INFO L85 PathProgramCache]: Analyzing trace with hash -474855701, now seen corresponding path program 1 times [2022-01-11 01:22:57,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214834856] [2022-01-11 01:22:57,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,083 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 01:22:57,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214834856] [2022-01-11 01:22:57,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214834856] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:57,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409244406] [2022-01-11 01:22:57,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,085 INFO L87 Difference]: Start difference. First operand 3634 states and 6178 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:57,146 INFO L93 Difference]: Finished difference Result 5128 states and 8370 transitions. [2022-01-11 01:22:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:57,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:57,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:57,156 INFO L225 Difference]: With dead ends: 5128 [2022-01-11 01:22:57,156 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:57,159 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 01:22:57,160 INFO L933 BasicCegarLoop]: 5180 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5180 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 01:22:57,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 5180 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:57,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6992564031947122) internal successors, (6170), 3633 states have internal predecessors, (6170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6170 transitions. [2022-01-11 01:22:57,227 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6170 transitions. Word has length 110 [2022-01-11 01:22:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,228 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6170 transitions. [2022-01-11 01:22:57,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6170 transitions. [2022-01-11 01:22:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:57,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:22:57,229 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 01:22:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1414126901, now seen corresponding path program 1 times [2022-01-11 01:22:57,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028082424] [2022-01-11 01:22:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,272 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 01:22:57,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028082424] [2022-01-11 01:22:57,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028082424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:57,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928676301] [2022-01-11 01:22:57,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,273 INFO L87 Difference]: Start difference. First operand 3634 states and 6170 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:57,336 INFO L93 Difference]: Finished difference Result 5127 states and 8353 transitions. [2022-01-11 01:22:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:57,357 INFO L225 Difference]: With dead ends: 5127 [2022-01-11 01:22:57,357 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:57,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,361 INFO L933 BasicCegarLoop]: 5175 mSDtfsCounter, 5160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 5175 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 01:22:57,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5160 Valid, 5175 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.697053153401267) internal successors, (6162), 3633 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6162 transitions. [2022-01-11 01:22:57,434 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6162 transitions. Word has length 110 [2022-01-11 01:22:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,434 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6162 transitions. [2022-01-11 01:22:57,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6162 transitions. [2022-01-11 01:22:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:57,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:22:57,435 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 01:22:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1742162667, now seen corresponding path program 1 times [2022-01-11 01:22:57,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661848308] [2022-01-11 01:22:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,499 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 01:22:57,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661848308] [2022-01-11 01:22:57,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661848308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:57,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099433661] [2022-01-11 01:22:57,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,501 INFO L87 Difference]: Start difference. First operand 3634 states and 6162 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:57,618 INFO L93 Difference]: Finished difference Result 5126 states and 8336 transitions. [2022-01-11 01:22:57,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:57,625 INFO L225 Difference]: With dead ends: 5126 [2022-01-11 01:22:57,625 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:57,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,627 INFO L933 BasicCegarLoop]: 5170 mSDtfsCounter, 5154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 5170 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 01:22:57,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5154 Valid, 5170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:57,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6948499036078215) internal successors, (6154), 3633 states have internal predecessors, (6154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6154 transitions. [2022-01-11 01:22:57,720 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6154 transitions. Word has length 110 [2022-01-11 01:22:57,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,721 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6154 transitions. [2022-01-11 01:22:57,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6154 transitions. [2022-01-11 01:22:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:57,722 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:22:57,722 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 01:22:57,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1289789131, now seen corresponding path program 1 times [2022-01-11 01:22:57,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104811709] [2022-01-11 01:22:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,760 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 01:22:57,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104811709] [2022-01-11 01:22:57,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104811709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:57,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750516628] [2022-01-11 01:22:57,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,763 INFO L87 Difference]: Start difference. First operand 3634 states and 6154 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:57,852 INFO L93 Difference]: Finished difference Result 5125 states and 8319 transitions. [2022-01-11 01:22:57,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:57,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:57,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:57,858 INFO L225 Difference]: With dead ends: 5125 [2022-01-11 01:22:57,859 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:57,861 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 01:22:57,862 INFO L933 BasicCegarLoop]: 5145 mSDtfsCounter, 5056 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:57,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 5223 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:57,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.687689341779124) internal successors, (6128), 3633 states have internal predecessors, (6128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6128 transitions. [2022-01-11 01:22:57,937 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6128 transitions. Word has length 110 [2022-01-11 01:22:57,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:57,939 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6128 transitions. [2022-01-11 01:22:57,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6128 transitions. [2022-01-11 01:22:57,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:57,942 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:57,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:57,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:22:57,942 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 01:22:57,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 848876650, now seen corresponding path program 1 times [2022-01-11 01:22:57,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:57,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987472620] [2022-01-11 01:22:57,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:57,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:57,977 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 01:22:57,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:57,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987472620] [2022-01-11 01:22:57,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987472620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:57,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:57,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:57,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689215656] [2022-01-11 01:22:57,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:57,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:57,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:57,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:57,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:57,979 INFO L87 Difference]: Start difference. First operand 3634 states and 6128 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,064 INFO L93 Difference]: Finished difference Result 5124 states and 8266 transitions. [2022-01-11 01:22:58,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,071 INFO L225 Difference]: With dead ends: 5124 [2022-01-11 01:22:58,071 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:58,073 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 01:22:58,073 INFO L933 BasicCegarLoop]: 5130 mSDtfsCounter, 5041 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5041 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:58,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5041 Valid, 5207 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.680528779950427) internal successors, (6102), 3633 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6102 transitions. [2022-01-11 01:22:58,149 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6102 transitions. Word has length 110 [2022-01-11 01:22:58,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:58,149 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6102 transitions. [2022-01-11 01:22:58,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6102 transitions. [2022-01-11 01:22:58,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:58,151 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:58,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:58,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:22:58,151 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 01:22:58,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:58,152 INFO L85 PathProgramCache]: Analyzing trace with hash -213454583, now seen corresponding path program 1 times [2022-01-11 01:22:58,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:58,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064876348] [2022-01-11 01:22:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:58,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:58,186 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 01:22:58,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:58,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064876348] [2022-01-11 01:22:58,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064876348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:58,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:58,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:58,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9941668] [2022-01-11 01:22:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:58,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:58,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:58,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:58,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:58,188 INFO L87 Difference]: Start difference. First operand 3634 states and 6102 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,285 INFO L93 Difference]: Finished difference Result 5123 states and 8213 transitions. [2022-01-11 01:22:58,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,295 INFO L225 Difference]: With dead ends: 5123 [2022-01-11 01:22:58,295 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:58,299 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 01:22:58,300 INFO L933 BasicCegarLoop]: 5115 mSDtfsCounter, 5026 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:58,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5026 Valid, 5191 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:58,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6733682181217295) internal successors, (6076), 3633 states have internal predecessors, (6076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6076 transitions. [2022-01-11 01:22:58,433 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6076 transitions. Word has length 110 [2022-01-11 01:22:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:58,433 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6076 transitions. [2022-01-11 01:22:58,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6076 transitions. [2022-01-11 01:22:58,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:58,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:58,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:58,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:22:58,434 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 01:22:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:58,434 INFO L85 PathProgramCache]: Analyzing trace with hash -173951704, now seen corresponding path program 1 times [2022-01-11 01:22:58,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:58,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461022449] [2022-01-11 01:22:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:58,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:58,459 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 01:22:58,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:58,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461022449] [2022-01-11 01:22:58,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461022449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:58,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:58,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:58,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119610841] [2022-01-11 01:22:58,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:58,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:58,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:58,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:58,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:58,460 INFO L87 Difference]: Start difference. First operand 3634 states and 6076 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,545 INFO L93 Difference]: Finished difference Result 5122 states and 8160 transitions. [2022-01-11 01:22:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:58,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,551 INFO L225 Difference]: With dead ends: 5122 [2022-01-11 01:22:58,552 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:58,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:58,554 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5011 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:58,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 5175 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:58,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:58,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6662076562930321) internal successors, (6050), 3633 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6050 transitions. [2022-01-11 01:22:58,624 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6050 transitions. Word has length 110 [2022-01-11 01:22:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:58,624 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6050 transitions. [2022-01-11 01:22:58,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6050 transitions. [2022-01-11 01:22:58,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:58,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:58,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:58,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:22:58,626 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 01:22:58,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:58,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1538076743, now seen corresponding path program 1 times [2022-01-11 01:22:58,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:58,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210906320] [2022-01-11 01:22:58,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:58,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:58,663 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 01:22:58,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:58,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210906320] [2022-01-11 01:22:58,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210906320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:58,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:58,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:58,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238450077] [2022-01-11 01:22:58,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:58,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:58,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:58,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:58,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:58,665 INFO L87 Difference]: Start difference. First operand 3634 states and 6050 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,748 INFO L93 Difference]: Finished difference Result 5121 states and 8107 transitions. [2022-01-11 01:22:58,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:58,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,754 INFO L225 Difference]: With dead ends: 5121 [2022-01-11 01:22:58,754 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:58,757 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 01:22:58,757 INFO L933 BasicCegarLoop]: 5085 mSDtfsCounter, 4996 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 5159 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:58,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4996 Valid, 5159 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:58,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.659047094464335) internal successors, (6024), 3633 states have internal predecessors, (6024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6024 transitions. [2022-01-11 01:22:58,833 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6024 transitions. Word has length 110 [2022-01-11 01:22:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:58,833 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6024 transitions. [2022-01-11 01:22:58,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6024 transitions. [2022-01-11 01:22:58,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:58,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:58,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:58,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:22:58,835 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 01:22:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1901523047, now seen corresponding path program 1 times [2022-01-11 01:22:58,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:58,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462908676] [2022-01-11 01:22:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:58,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:58,859 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 01:22:58,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:58,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462908676] [2022-01-11 01:22:58,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462908676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:58,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:58,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:58,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703905684] [2022-01-11 01:22:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:58,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:58,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:58,861 INFO L87 Difference]: Start difference. First operand 3634 states and 6024 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:58,958 INFO L93 Difference]: Finished difference Result 5120 states and 8054 transitions. [2022-01-11 01:22:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:58,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:58,964 INFO L225 Difference]: With dead ends: 5120 [2022-01-11 01:22:58,964 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:58,966 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 01:22:58,967 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 4981 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:58,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 5143 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:58,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6518865326356376) internal successors, (5998), 3633 states have internal predecessors, (5998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5998 transitions. [2022-01-11 01:22:59,064 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5998 transitions. Word has length 110 [2022-01-11 01:22:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:59,064 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5998 transitions. [2022-01-11 01:22:59,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5998 transitions. [2022-01-11 01:22:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:59,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:59,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:59,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:22:59,066 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 01:22:59,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1350797830, now seen corresponding path program 1 times [2022-01-11 01:22:59,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:59,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052473048] [2022-01-11 01:22:59,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:59,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:59,098 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 01:22:59,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:59,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052473048] [2022-01-11 01:22:59,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052473048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:59,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:59,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:59,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739689219] [2022-01-11 01:22:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:59,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:59,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:59,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:59,100 INFO L87 Difference]: Start difference. First operand 3634 states and 5998 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:59,223 INFO L93 Difference]: Finished difference Result 5119 states and 8001 transitions. [2022-01-11 01:22:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:59,230 INFO L225 Difference]: With dead ends: 5119 [2022-01-11 01:22:59,230 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:59,233 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 01:22:59,234 INFO L933 BasicCegarLoop]: 5055 mSDtfsCounter, 4966 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 5127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:59,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 5127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6447259708069402) internal successors, (5972), 3633 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5972 transitions. [2022-01-11 01:22:59,340 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5972 transitions. Word has length 110 [2022-01-11 01:22:59,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:59,341 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5972 transitions. [2022-01-11 01:22:59,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5972 transitions. [2022-01-11 01:22:59,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:59,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:59,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:59,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:22:59,342 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 01:22:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1008030939, now seen corresponding path program 1 times [2022-01-11 01:22:59,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:59,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407711149] [2022-01-11 01:22:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:59,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:22:59,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:59,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407711149] [2022-01-11 01:22:59,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407711149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:59,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:59,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:22:59,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056102970] [2022-01-11 01:22:59,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:59,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:22:59,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:59,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:22:59,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:22:59,375 INFO L87 Difference]: Start difference. First operand 3634 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:59,503 INFO L93 Difference]: Finished difference Result 5118 states and 7948 transitions. [2022-01-11 01:22:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:22:59,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:59,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:59,509 INFO L225 Difference]: With dead ends: 5118 [2022-01-11 01:22:59,509 INFO L226 Difference]: Without dead ends: 3634 [2022-01-11 01:22:59,511 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 01:22:59,512 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 4951 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:59,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 5111 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:22:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-11 01:22:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-11 01:22:59,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.637565408978243) internal successors, (5946), 3633 states have internal predecessors, (5946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5946 transitions. [2022-01-11 01:22:59,612 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5946 transitions. Word has length 110 [2022-01-11 01:22:59,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:59,612 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5946 transitions. [2022-01-11 01:22:59,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5946 transitions. [2022-01-11 01:22:59,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:59,613 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:59,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:59,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:22:59,614 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 01:22:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:59,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1601551003, now seen corresponding path program 1 times [2022-01-11 01:22:59,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:59,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921799195] [2022-01-11 01:22:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:59,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:22:59,660 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 01:22:59,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:22:59,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921799195] [2022-01-11 01:22:59,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921799195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:22:59,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:22:59,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:22:59,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009138959] [2022-01-11 01:22:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:22:59,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:22:59,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:22:59,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:22:59,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:22:59,662 INFO L87 Difference]: Start difference. First operand 3634 states and 5946 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:22:59,884 INFO L93 Difference]: Finished difference Result 5824 states and 8873 transitions. [2022-01-11 01:22:59,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:22:59,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:22:59,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:22:59,892 INFO L225 Difference]: With dead ends: 5824 [2022-01-11 01:22:59,892 INFO L226 Difference]: Without dead ends: 4354 [2022-01-11 01:22:59,895 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 01:22:59,895 INFO L933 BasicCegarLoop]: 5129 mSDtfsCounter, 2968 mSDsluCounter, 13404 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 18533 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:22:59,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2968 Valid, 18533 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:22:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-01-11 01:22:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 3640. [2022-01-11 01:22:59,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3637 states have (on average 1.6315644762166621) internal successors, (5934), 3639 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5934 transitions. [2022-01-11 01:22:59,982 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5934 transitions. Word has length 110 [2022-01-11 01:22:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:22:59,982 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5934 transitions. [2022-01-11 01:22:59,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:22:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5934 transitions. [2022-01-11 01:22:59,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:22:59,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:22:59,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:22:59,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:22:59,984 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 01:22:59,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:22:59,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1847864090, now seen corresponding path program 1 times [2022-01-11 01:22:59,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:22:59,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060611442] [2022-01-11 01:22:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:22:59,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:22:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:00,021 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 01:23:00,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:00,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060611442] [2022-01-11 01:23:00,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060611442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:00,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:00,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:23:00,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622281709] [2022-01-11 01:23:00,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:00,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:23:00,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:23:00,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:23:00,022 INFO L87 Difference]: Start difference. First operand 3640 states and 5934 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:00,285 INFO L93 Difference]: Finished difference Result 6293 states and 9431 transitions. [2022-01-11 01:23:00,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:23:00,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:23:00,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:00,293 INFO L225 Difference]: With dead ends: 6293 [2022-01-11 01:23:00,293 INFO L226 Difference]: Without dead ends: 4852 [2022-01-11 01:23:00,295 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 01:23:00,296 INFO L933 BasicCegarLoop]: 5027 mSDtfsCounter, 2360 mSDsluCounter, 14556 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 19583 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:00,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 19583 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:00,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2022-01-11 01:23:00,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 3646. [2022-01-11 01:23:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3643 states have (on average 1.6255833104584134) internal successors, (5922), 3645 states have internal predecessors, (5922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5922 transitions. [2022-01-11 01:23:00,427 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5922 transitions. Word has length 110 [2022-01-11 01:23:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:00,427 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 5922 transitions. [2022-01-11 01:23:00,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5922 transitions. [2022-01-11 01:23:00,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:23:00,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:00,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:00,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:23:00,428 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 01:23:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1524419623, now seen corresponding path program 1 times [2022-01-11 01:23:00,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:00,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417382125] [2022-01-11 01:23:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:00,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:00,475 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 01:23:00,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:00,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417382125] [2022-01-11 01:23:00,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417382125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:00,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:00,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:23:00,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280413149] [2022-01-11 01:23:00,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:00,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:23:00,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:23:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:23:00,477 INFO L87 Difference]: Start difference. First operand 3646 states and 5922 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:00,757 INFO L93 Difference]: Finished difference Result 6402 states and 9517 transitions. [2022-01-11 01:23:00,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:23:00,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:23:00,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:00,765 INFO L225 Difference]: With dead ends: 6402 [2022-01-11 01:23:00,765 INFO L226 Difference]: Without dead ends: 4962 [2022-01-11 01:23:00,767 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 01:23:00,767 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 2224 mSDsluCounter, 14765 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 19764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:00,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2224 Valid, 19764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:23:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-01-11 01:23:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 3652. [2022-01-11 01:23:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3649 states have (on average 1.61962181419567) internal successors, (5910), 3651 states have internal predecessors, (5910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5910 transitions. [2022-01-11 01:23:00,938 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5910 transitions. Word has length 110 [2022-01-11 01:23:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:00,938 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5910 transitions. [2022-01-11 01:23:00,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5910 transitions. [2022-01-11 01:23:00,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 01:23:00,939 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:00,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:00,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:23:00,940 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 01:23:00,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:00,940 INFO L85 PathProgramCache]: Analyzing trace with hash -659257304, now seen corresponding path program 1 times [2022-01-11 01:23:00,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:00,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462050410] [2022-01-11 01:23:00,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:00,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:00,978 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 01:23:00,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:00,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462050410] [2022-01-11 01:23:00,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462050410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:00,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:00,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:23:00,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919698321] [2022-01-11 01:23:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:00,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:00,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:00,979 INFO L87 Difference]: Start difference. First operand 3652 states and 5910 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:01,169 INFO L93 Difference]: Finished difference Result 6540 states and 9596 transitions. [2022-01-11 01:23:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-01-11 01:23:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:01,177 INFO L225 Difference]: With dead ends: 6540 [2022-01-11 01:23:01,177 INFO L226 Difference]: Without dead ends: 5040 [2022-01-11 01:23:01,179 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 01:23:01,179 INFO L933 BasicCegarLoop]: 5011 mSDtfsCounter, 4877 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:01,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 5929 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2022-01-11 01:23:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4924. [2022-01-11 01:23:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4924 states, 4921 states have (on average 1.5277382645803699) internal successors, (7518), 4923 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:01,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 7518 transitions. [2022-01-11 01:23:01,343 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 7518 transitions. Word has length 110 [2022-01-11 01:23:01,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:01,343 INFO L470 AbstractCegarLoop]: Abstraction has 4924 states and 7518 transitions. [2022-01-11 01:23:01,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 7518 transitions. [2022-01-11 01:23:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 01:23:01,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:01,346 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:01,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:23:01,346 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 01:23:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2091855512, now seen corresponding path program 1 times [2022-01-11 01:23:01,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:01,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574880877] [2022-01-11 01:23:01,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:01,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:01,385 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 01:23:01,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:01,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574880877] [2022-01-11 01:23:01,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574880877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:01,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:01,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:01,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632062420] [2022-01-11 01:23:01,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:01,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:01,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:01,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:01,386 INFO L87 Difference]: Start difference. First operand 4924 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:01,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:01,706 INFO L93 Difference]: Finished difference Result 10310 states and 14374 transitions. [2022-01-11 01:23:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 01:23:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:01,719 INFO L225 Difference]: With dead ends: 10310 [2022-01-11 01:23:01,719 INFO L226 Difference]: Without dead ends: 7544 [2022-01-11 01:23:01,724 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 01:23:01,725 INFO L933 BasicCegarLoop]: 5008 mSDtfsCounter, 4906 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:01,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 5926 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-01-11 01:23:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7340. [2022-01-11 01:23:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 7337 states have (on average 1.441733678615238) internal successors, (10578), 7339 states have internal predecessors, (10578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10578 transitions. [2022-01-11 01:23:02,029 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10578 transitions. Word has length 178 [2022-01-11 01:23:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:02,030 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 10578 transitions. [2022-01-11 01:23:02,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10578 transitions. [2022-01-11 01:23:02,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 01:23:02,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:02,033 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:02,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:23:02,033 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 01:23:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:02,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1452187944, now seen corresponding path program 1 times [2022-01-11 01:23:02,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:02,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990846393] [2022-01-11 01:23:02,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:02,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:02,078 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 01:23:02,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:02,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990846393] [2022-01-11 01:23:02,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990846393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:02,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:02,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:02,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710772552] [2022-01-11 01:23:02,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:02,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:02,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:02,079 INFO L87 Difference]: Start difference. First operand 7340 states and 10578 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:02,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:02,652 INFO L93 Difference]: Finished difference Result 17261 states and 23062 transitions. [2022-01-11 01:23:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:02,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-11 01:23:02,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:02,671 INFO L225 Difference]: With dead ends: 17261 [2022-01-11 01:23:02,672 INFO L226 Difference]: Without dead ends: 12143 [2022-01-11 01:23:02,678 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 01:23:02,679 INFO L933 BasicCegarLoop]: 5548 mSDtfsCounter, 4745 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 6591 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 01:23:02,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 6591 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2022-01-11 01:23:03,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2022-01-11 01:23:03,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 12136 states have (on average 1.3618984838497035) internal successors, (16528), 12138 states have internal predecessors, (16528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 16528 transitions. [2022-01-11 01:23:03,326 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 16528 transitions. Word has length 178 [2022-01-11 01:23:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:03,326 INFO L470 AbstractCegarLoop]: Abstraction has 12139 states and 16528 transitions. [2022-01-11 01:23:03,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 16528 transitions. [2022-01-11 01:23:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-11 01:23:03,331 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:03,332 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:03,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:23:03,332 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 01:23:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2136418249, now seen corresponding path program 1 times [2022-01-11 01:23:03,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:03,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319647194] [2022-01-11 01:23:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:03,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:03,357 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 01:23:03,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:03,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319647194] [2022-01-11 01:23:03,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319647194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:03,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:03,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:03,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103775214] [2022-01-11 01:23:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:03,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:03,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:03,358 INFO L87 Difference]: Start difference. First operand 12139 states and 16528 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:03,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:03,855 INFO L93 Difference]: Finished difference Result 21961 states and 28866 transitions. [2022-01-11 01:23:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:03,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 178 [2022-01-11 01:23:03,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:03,876 INFO L225 Difference]: With dead ends: 21961 [2022-01-11 01:23:03,876 INFO L226 Difference]: Without dead ends: 12044 [2022-01-11 01:23:03,888 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 01:23:03,889 INFO L933 BasicCegarLoop]: 5019 mSDtfsCounter, 1057 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8977 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 01:23:03,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8977 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:03,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-01-11 01:23:04,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 12044. [2022-01-11 01:23:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12044 states, 12041 states have (on average 1.363258865542729) internal successors, (16415), 12043 states have internal predecessors, (16415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12044 states to 12044 states and 16415 transitions. [2022-01-11 01:23:04,501 INFO L78 Accepts]: Start accepts. Automaton has 12044 states and 16415 transitions. Word has length 178 [2022-01-11 01:23:04,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:04,502 INFO L470 AbstractCegarLoop]: Abstraction has 12044 states and 16415 transitions. [2022-01-11 01:23:04,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 12044 states and 16415 transitions. [2022-01-11 01:23:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 01:23:04,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:04,510 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:04,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:23:04,511 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 01:23:04,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:04,511 INFO L85 PathProgramCache]: Analyzing trace with hash 409833945, now seen corresponding path program 1 times [2022-01-11 01:23:04,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:04,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285570388] [2022-01-11 01:23:04,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:04,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:04,564 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 01:23:04,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:04,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285570388] [2022-01-11 01:23:04,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285570388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:04,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:04,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:04,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596196388] [2022-01-11 01:23:04,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:04,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:04,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:04,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:04,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:04,567 INFO L87 Difference]: Start difference. First operand 12044 states and 16415 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:05,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:05,534 INFO L93 Difference]: Finished difference Result 31278 states and 40465 transitions. [2022-01-11 01:23:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:05,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-01-11 01:23:05,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:05,567 INFO L225 Difference]: With dead ends: 31278 [2022-01-11 01:23:05,568 INFO L226 Difference]: Without dead ends: 21456 [2022-01-11 01:23:05,585 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 01:23:05,585 INFO L933 BasicCegarLoop]: 5308 mSDtfsCounter, 4904 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:05,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6339 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21456 states. [2022-01-11 01:23:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21456 to 20828. [2022-01-11 01:23:06,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20828 states, 20825 states have (on average 1.3117406962785114) internal successors, (27317), 20827 states have internal predecessors, (27317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:06,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20828 states to 20828 states and 27317 transitions. [2022-01-11 01:23:06,753 INFO L78 Accepts]: Start accepts. Automaton has 20828 states and 27317 transitions. Word has length 179 [2022-01-11 01:23:06,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:06,754 INFO L470 AbstractCegarLoop]: Abstraction has 20828 states and 27317 transitions. [2022-01-11 01:23:06,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:06,754 INFO L276 IsEmpty]: Start isEmpty. Operand 20828 states and 27317 transitions. [2022-01-11 01:23:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-11 01:23:06,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:06,763 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:06,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:23:06,763 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 01:23:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 163613143, now seen corresponding path program 1 times [2022-01-11 01:23:06,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:06,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025405634] [2022-01-11 01:23:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:06,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:06,792 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 01:23:06,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:06,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025405634] [2022-01-11 01:23:06,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025405634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:06,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:06,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:06,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236901839] [2022-01-11 01:23:06,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:06,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:06,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:06,794 INFO L87 Difference]: Start difference. First operand 20828 states and 27317 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:07,802 INFO L93 Difference]: Finished difference Result 39393 states and 50508 transitions. [2022-01-11 01:23:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:07,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 179 [2022-01-11 01:23:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:07,835 INFO L225 Difference]: With dead ends: 39393 [2022-01-11 01:23:07,836 INFO L226 Difference]: Without dead ends: 20734 [2022-01-11 01:23:07,858 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 01:23:07,858 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 1055 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 8976 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 01:23:07,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 8976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20734 states. [2022-01-11 01:23:08,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20734 to 20734. [2022-01-11 01:23:08,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20734 states, 20731 states have (on average 1.3123341855192707) internal successors, (27206), 20733 states have internal predecessors, (27206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20734 states to 20734 states and 27206 transitions. [2022-01-11 01:23:09,000 INFO L78 Accepts]: Start accepts. Automaton has 20734 states and 27206 transitions. Word has length 179 [2022-01-11 01:23:09,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:09,000 INFO L470 AbstractCegarLoop]: Abstraction has 20734 states and 27206 transitions. [2022-01-11 01:23:09,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 20734 states and 27206 transitions. [2022-01-11 01:23:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 01:23:09,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:09,010 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:09,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:23:09,010 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 01:23:09,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:09,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1274280743, now seen corresponding path program 1 times [2022-01-11 01:23:09,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:09,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773280018] [2022-01-11 01:23:09,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:09,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:09,063 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 01:23:09,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:09,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773280018] [2022-01-11 01:23:09,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773280018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:09,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:09,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:09,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012571085] [2022-01-11 01:23:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:09,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:09,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:09,066 INFO L87 Difference]: Start difference. First operand 20734 states and 27206 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:11,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:11,104 INFO L93 Difference]: Finished difference Result 56763 states and 72102 transitions. [2022-01-11 01:23:11,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:11,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2022-01-11 01:23:11,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:11,158 INFO L225 Difference]: With dead ends: 56763 [2022-01-11 01:23:11,158 INFO L226 Difference]: Without dead ends: 38251 [2022-01-11 01:23:11,181 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 01:23:11,181 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 4904 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6301 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 01:23:11,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6301 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38251 states. [2022-01-11 01:23:13,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38251 to 37223. [2022-01-11 01:23:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37223 states, 37220 states have (on average 1.2806555615260613) internal successors, (47666), 37222 states have internal predecessors, (47666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37223 states to 37223 states and 47666 transitions. [2022-01-11 01:23:13,500 INFO L78 Accepts]: Start accepts. Automaton has 37223 states and 47666 transitions. Word has length 180 [2022-01-11 01:23:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:13,501 INFO L470 AbstractCegarLoop]: Abstraction has 37223 states and 47666 transitions. [2022-01-11 01:23:13,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 37223 states and 47666 transitions. [2022-01-11 01:23:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-11 01:23:13,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:13,520 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:13,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:23:13,521 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 01:23:13,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:13,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1782445368, now seen corresponding path program 1 times [2022-01-11 01:23:13,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:13,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88387036] [2022-01-11 01:23:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:13,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:13,576 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 01:23:13,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:13,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88387036] [2022-01-11 01:23:13,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88387036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:13,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:13,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:13,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750125566] [2022-01-11 01:23:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:13,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:13,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:13,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:13,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:13,579 INFO L87 Difference]: Start difference. First operand 37223 states and 47666 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:16,177 INFO L93 Difference]: Finished difference Result 72177 states and 91200 transitions. [2022-01-11 01:23:16,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2022-01-11 01:23:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:16,240 INFO L225 Difference]: With dead ends: 72177 [2022-01-11 01:23:16,240 INFO L226 Difference]: Without dead ends: 37130 [2022-01-11 01:23:16,273 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 01:23:16,274 INFO L933 BasicCegarLoop]: 5017 mSDtfsCounter, 1053 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 8975 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 01:23:16,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 8975 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:16,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2022-01-11 01:23:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 37130. [2022-01-11 01:23:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37130 states, 37127 states have (on average 1.2809276267945162) internal successors, (47557), 37129 states have internal predecessors, (47557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37130 states to 37130 states and 47557 transitions. [2022-01-11 01:23:18,574 INFO L78 Accepts]: Start accepts. Automaton has 37130 states and 47557 transitions. Word has length 180 [2022-01-11 01:23:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:18,574 INFO L470 AbstractCegarLoop]: Abstraction has 37130 states and 47557 transitions. [2022-01-11 01:23:18,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 37130 states and 47557 transitions. [2022-01-11 01:23:18,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 01:23:18,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:18,587 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:18,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:23:18,587 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:18,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:18,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1757173645, now seen corresponding path program 1 times [2022-01-11 01:23:18,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:18,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986787934] [2022-01-11 01:23:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:18,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:18,631 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 01:23:18,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:18,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986787934] [2022-01-11 01:23:18,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986787934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:18,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:18,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:18,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84701464] [2022-01-11 01:23:18,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:18,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:18,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:18,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:18,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:18,632 INFO L87 Difference]: Start difference. First operand 37130 states and 47557 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:22,641 INFO L93 Difference]: Finished difference Result 104534 states and 131347 transitions. [2022-01-11 01:23:22,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-01-11 01:23:22,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:22,752 INFO L225 Difference]: With dead ends: 104534 [2022-01-11 01:23:22,753 INFO L226 Difference]: Without dead ends: 69626 [2022-01-11 01:23:22,786 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 01:23:22,786 INFO L933 BasicCegarLoop]: 5291 mSDtfsCounter, 4904 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:23:22,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6318 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69626 states. [2022-01-11 01:23:26,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69626 to 68022. [2022-01-11 01:23:26,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68022 states, 68019 states have (on average 1.262220850056602) internal successors, (85855), 68021 states have internal predecessors, (85855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68022 states to 68022 states and 85855 transitions. [2022-01-11 01:23:27,090 INFO L78 Accepts]: Start accepts. Automaton has 68022 states and 85855 transitions. Word has length 181 [2022-01-11 01:23:27,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:27,090 INFO L470 AbstractCegarLoop]: Abstraction has 68022 states and 85855 transitions. [2022-01-11 01:23:27,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 68022 states and 85855 transitions. [2022-01-11 01:23:27,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-11 01:23:27,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:27,114 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:27,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:23:27,115 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:27,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:27,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1170528618, now seen corresponding path program 1 times [2022-01-11 01:23:27,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:27,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619258683] [2022-01-11 01:23:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:27,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:27,145 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 01:23:27,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:27,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619258683] [2022-01-11 01:23:27,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619258683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:27,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:27,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:27,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691458068] [2022-01-11 01:23:27,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:27,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:27,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:27,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:27,147 INFO L87 Difference]: Start difference. First operand 68022 states and 85855 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:31,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:23:31,239 INFO L93 Difference]: Finished difference Result 133769 states and 167572 transitions. [2022-01-11 01:23:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:23:31,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 181 [2022-01-11 01:23:31,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:23:31,336 INFO L225 Difference]: With dead ends: 133769 [2022-01-11 01:23:31,336 INFO L226 Difference]: Without dead ends: 67930 [2022-01-11 01:23:31,382 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 01:23:31,382 INFO L933 BasicCegarLoop]: 5016 mSDtfsCounter, 1051 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8974 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 01:23:31,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 8974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:23:31,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67930 states. [2022-01-11 01:23:35,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67930 to 67930. [2022-01-11 01:23:35,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67930 states, 67927 states have (on average 1.2623551754088949) internal successors, (85748), 67929 states have internal predecessors, (85748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:35,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67930 states to 67930 states and 85748 transitions. [2022-01-11 01:23:35,764 INFO L78 Accepts]: Start accepts. Automaton has 67930 states and 85748 transitions. Word has length 181 [2022-01-11 01:23:35,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:23:35,764 INFO L470 AbstractCegarLoop]: Abstraction has 67930 states and 85748 transitions. [2022-01-11 01:23:35,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:23:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 67930 states and 85748 transitions. [2022-01-11 01:23:35,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-11 01:23:35,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:23:35,783 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:23:35,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:23:35,783 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:23:35,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:23:35,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1556371761, now seen corresponding path program 1 times [2022-01-11 01:23:35,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:23:35,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937697388] [2022-01-11 01:23:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:23:35,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:23:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:23:35,821 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 01:23:35,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:23:35,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937697388] [2022-01-11 01:23:35,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937697388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:23:35,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:23:35,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:23:35,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931469805] [2022-01-11 01:23:35,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:23:35,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:23:35,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:23:35,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:23:35,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:23:35,822 INFO L87 Difference]: Start difference. First operand 67930 states and 85748 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)