/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:12:53,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:12:53,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:12:53,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:12:53,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:12:53,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:12:53,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:12:53,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:12:53,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:12:53,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:12:53,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:12:53,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:12:53,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:12:53,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:12:53,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:12:53,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:12:53,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:12:53,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:12:53,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:12:53,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:12:53,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:12:53,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:12:53,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:12:53,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:12:53,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 07:12:53,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:12:53,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:12:53,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:12:53,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:12:53,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:12:53,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:12:53,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:12:53,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:12:53,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:12:53,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:12:53,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:12:53,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 07:12:53,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:12:53,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:12:53,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:12:53,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:12:53,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:12:53,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:12:53,896 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:12:53,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:12:53,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:12:53,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:12:53,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:12:53,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:12:53,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:12:53,897 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:12:53,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:12:53,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:12:53,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:12:53,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:12:53,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:12:53,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:12:53,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:12:53,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:12:53,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:12:53,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:12:53,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:12:53,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:12:53,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:12:53,901 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:12:53,901 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:12:54,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:12:54,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:12:54,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:12:54,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:12:54,108 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:12:54,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c [2022-01-11 07:12:54,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eebaa6e/38eb601e4cbb40ceb72d4927e7b7d246/FLAGf22aa1ea7 [2022-01-11 07:12:54,922 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:12:54,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label48+token_ring.08.cil-1.c [2022-01-11 07:12:54,979 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eebaa6e/38eb601e4cbb40ceb72d4927e7b7d246/FLAGf22aa1ea7 [2022-01-11 07:12:55,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0eebaa6e/38eb601e4cbb40ceb72d4927e7b7d246 [2022-01-11 07:12:55,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:12:55,189 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:12:55,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:12:55,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:12:55,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:12:55,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:12:55" (1/1) ... [2022-01-11 07:12:55,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abda081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:55, skipping insertion in model container [2022-01-11 07:12:55,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:12:55" (1/1) ... [2022-01-11 07:12:55,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:12:55,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:12:56,945 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_label48+token_ring.08.cil-1.c[375709,375722] [2022-01-11 07:12:57,025 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_label48+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:12:57,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:12:57,280 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:12:57,988 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_label48+token_ring.08.cil-1.c[375709,375722] [2022-01-11 07:12:58,024 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_label48+token_ring.08.cil-1.c[383339,383352] [2022-01-11 07:12:58,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:12:58,096 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:12:58,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58 WrapperNode [2022-01-11 07:12:58,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:12:58,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:12:58,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:12:58,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:12:58,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,565 INFO L137 Inliner]: procedures = 61, calls = 65, calls flagged for inlining = 60, calls inlined = 167, statements flattened = 14693 [2022-01-11 07:12:58,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:12:58,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:12:58,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:12:58,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:12:58,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:58,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:59,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:59,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:12:59,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:12:59,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:12:59,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:12:59,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (1/1) ... [2022-01-11 07:12:59,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:12:59,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:12:59,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 07:12:59,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 07:12:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:12:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:12:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:12:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:12:59,383 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:12:59,385 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:13:07,880 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:13:07,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:13:07,905 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2022-01-11 07:13:07,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:13:07 BoogieIcfgContainer [2022-01-11 07:13:07,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:13:07,911 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:13:07,911 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:13:07,913 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:13:07,915 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:13:07" (1/1) ... [2022-01-11 07:13:09,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:13:09 BasicIcfg [2022-01-11 07:13:09,521 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:13:09,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:13:09,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:13:09,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:13:09,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:12:55" (1/4) ... [2022-01-11 07:13:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c77446f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:13:09, skipping insertion in model container [2022-01-11 07:13:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:12:58" (2/4) ... [2022-01-11 07:13:09,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c77446f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:13:09, skipping insertion in model container [2022-01-11 07:13:09,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:13:07" (3/4) ... [2022-01-11 07:13:09,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c77446f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:13:09, skipping insertion in model container [2022-01-11 07:13:09,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:13:09" (4/4) ... [2022-01-11 07:13:09,528 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label48+token_ring.08.cil-1.cTransformedIcfg [2022-01-11 07:13:09,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:13:09,533 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 07:13:09,579 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:13:09,585 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 07:13:09,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 07:13:09,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:09,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:09,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:09,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:09,648 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:09,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash 267453931, now seen corresponding path program 1 times [2022-01-11 07:13:09,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:09,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718669008] [2022-01-11 07:13:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:09,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:10,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:10,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718669008] [2022-01-11 07:13:10,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718669008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:10,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:10,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:10,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828558007] [2022-01-11 07:13:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:10,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:10,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:10,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:10,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:10,061 INFO L87 Difference]: Start difference. First operand has 3183 states, 3180 states have (on average 1.759748427672956) internal successors, (5596), 3182 states have internal predecessors, (5596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:10,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:10,474 INFO L93 Difference]: Finished difference Result 6348 states and 11162 transitions. [2022-01-11 07:13:10,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:10,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:10,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:10,499 INFO L225 Difference]: With dead ends: 6348 [2022-01-11 07:13:10,500 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:10,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:10,510 INFO L933 BasicCegarLoop]: 5499 mSDtfsCounter, 5488 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5488 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:10,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5488 Valid, 5499 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7459858702633269) internal successors, (5437), 3115 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5437 transitions. [2022-01-11 07:13:10,680 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5437 transitions. Word has length 121 [2022-01-11 07:13:10,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:10,680 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5437 transitions. [2022-01-11 07:13:10,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5437 transitions. [2022-01-11 07:13:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:10,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:10,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:10,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:13:10,689 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:10,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:10,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1683429173, now seen corresponding path program 1 times [2022-01-11 07:13:10,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:10,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440797908] [2022-01-11 07:13:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:10,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:10,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:10,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440797908] [2022-01-11 07:13:10,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440797908] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:10,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:10,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:10,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019107533] [2022-01-11 07:13:10,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:10,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:10,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:10,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:10,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:10,808 INFO L87 Difference]: Start difference. First operand 3116 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:10,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:10,897 INFO L93 Difference]: Finished difference Result 4094 states and 6888 transitions. [2022-01-11 07:13:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:10,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:10,911 INFO L225 Difference]: With dead ends: 4094 [2022-01-11 07:13:10,912 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:10,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:10,919 INFO L933 BasicCegarLoop]: 5427 mSDtfsCounter, 5415 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5415 SdHoareTripleChecker+Valid, 5427 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:10,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5415 Valid, 5427 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:10,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:10,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7443802183686576) internal successors, (5432), 3115 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5432 transitions. [2022-01-11 07:13:11,002 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5432 transitions. Word has length 121 [2022-01-11 07:13:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:11,003 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5432 transitions. [2022-01-11 07:13:11,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5432 transitions. [2022-01-11 07:13:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:11,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:11,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:11,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:13:11,006 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:11,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash -637982229, now seen corresponding path program 1 times [2022-01-11 07:13:11,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:11,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554068933] [2022-01-11 07:13:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:11,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:11,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:11,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554068933] [2022-01-11 07:13:11,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554068933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:11,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:11,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:11,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197335925] [2022-01-11 07:13:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:11,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:11,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,078 INFO L87 Difference]: Start difference. First operand 3116 states and 5432 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:11,159 INFO L93 Difference]: Finished difference Result 4093 states and 6877 transitions. [2022-01-11 07:13:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:11,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:11,171 INFO L225 Difference]: With dead ends: 4093 [2022-01-11 07:13:11,171 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:11,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,179 INFO L933 BasicCegarLoop]: 5422 mSDtfsCounter, 5409 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5409 SdHoareTripleChecker+Valid, 5422 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:11,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5409 Valid, 5422 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:11,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:11,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7427745664739884) internal successors, (5427), 3115 states have internal predecessors, (5427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5427 transitions. [2022-01-11 07:13:11,256 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5427 transitions. Word has length 121 [2022-01-11 07:13:11,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:11,256 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5427 transitions. [2022-01-11 07:13:11,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5427 transitions. [2022-01-11 07:13:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:11,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:11,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:11,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:13:11,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:11,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:11,261 INFO L85 PathProgramCache]: Analyzing trace with hash 504120523, now seen corresponding path program 1 times [2022-01-11 07:13:11,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:11,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99786958] [2022-01-11 07:13:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:11,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:11,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:11,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99786958] [2022-01-11 07:13:11,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99786958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:11,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:11,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:11,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200059227] [2022-01-11 07:13:11,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:11,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:11,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:11,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,357 INFO L87 Difference]: Start difference. First operand 3116 states and 5427 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:11,439 INFO L93 Difference]: Finished difference Result 4091 states and 6864 transitions. [2022-01-11 07:13:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:11,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:11,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:11,451 INFO L225 Difference]: With dead ends: 4091 [2022-01-11 07:13:11,451 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:11,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,460 INFO L933 BasicCegarLoop]: 5417 mSDtfsCounter, 5402 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 5417 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:11,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 5417 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:11,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:11,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7411689145793192) internal successors, (5422), 3115 states have internal predecessors, (5422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5422 transitions. [2022-01-11 07:13:11,537 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5422 transitions. Word has length 121 [2022-01-11 07:13:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:11,537 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5422 transitions. [2022-01-11 07:13:11,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5422 transitions. [2022-01-11 07:13:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:11,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:11,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:11,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:13:11,540 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:11,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1743296427, now seen corresponding path program 1 times [2022-01-11 07:13:11,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:11,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300537994] [2022-01-11 07:13:11,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:11,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:11,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:11,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300537994] [2022-01-11 07:13:11,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300537994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:11,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:11,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:11,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414318441] [2022-01-11 07:13:11,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:11,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:11,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:11,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,613 INFO L87 Difference]: Start difference. First operand 3116 states and 5422 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:11,706 INFO L93 Difference]: Finished difference Result 4090 states and 6853 transitions. [2022-01-11 07:13:11,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:11,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:11,718 INFO L225 Difference]: With dead ends: 4090 [2022-01-11 07:13:11,719 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:11,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,722 INFO L933 BasicCegarLoop]: 5412 mSDtfsCounter, 5396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:11,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5412 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:11,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:11,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73956326268465) internal successors, (5417), 3115 states have internal predecessors, (5417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5417 transitions. [2022-01-11 07:13:11,925 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5417 transitions. Word has length 121 [2022-01-11 07:13:11,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:11,928 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5417 transitions. [2022-01-11 07:13:11,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:11,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5417 transitions. [2022-01-11 07:13:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:11,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:11,935 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:11,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:13:11,935 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:11,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1506175179, now seen corresponding path program 1 times [2022-01-11 07:13:11,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:11,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351963842] [2022-01-11 07:13:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:11,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:11,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351963842] [2022-01-11 07:13:11,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351963842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:11,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:11,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:11,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362408871] [2022-01-11 07:13:11,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:11,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:11,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:11,989 INFO L87 Difference]: Start difference. First operand 3116 states and 5417 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:12,066 INFO L93 Difference]: Finished difference Result 4089 states and 6842 transitions. [2022-01-11 07:13:12,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:12,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:12,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:12,079 INFO L225 Difference]: With dead ends: 4089 [2022-01-11 07:13:12,079 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:12,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,082 INFO L933 BasicCegarLoop]: 5407 mSDtfsCounter, 5390 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 5407 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:12,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 5407 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:12,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7379576107899808) internal successors, (5412), 3115 states have internal predecessors, (5412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5412 transitions. [2022-01-11 07:13:12,163 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5412 transitions. Word has length 121 [2022-01-11 07:13:12,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:12,163 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5412 transitions. [2022-01-11 07:13:12,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5412 transitions. [2022-01-11 07:13:12,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:12,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:12,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:12,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:13:12,165 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:12,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2052715435, now seen corresponding path program 1 times [2022-01-11 07:13:12,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:12,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145096794] [2022-01-11 07:13:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:12,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:12,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:12,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145096794] [2022-01-11 07:13:12,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145096794] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:12,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:12,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:12,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195353680] [2022-01-11 07:13:12,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:12,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:12,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:12,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:12,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,219 INFO L87 Difference]: Start difference. First operand 3116 states and 5412 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:12,294 INFO L93 Difference]: Finished difference Result 4088 states and 6831 transitions. [2022-01-11 07:13:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:12,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:12,306 INFO L225 Difference]: With dead ends: 4088 [2022-01-11 07:13:12,306 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:12,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,309 INFO L933 BasicCegarLoop]: 5402 mSDtfsCounter, 5384 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5384 SdHoareTripleChecker+Valid, 5402 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:12,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5384 Valid, 5402 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:12,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7363519588953116) internal successors, (5407), 3115 states have internal predecessors, (5407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5407 transitions. [2022-01-11 07:13:12,389 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5407 transitions. Word has length 121 [2022-01-11 07:13:12,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:12,389 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5407 transitions. [2022-01-11 07:13:12,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5407 transitions. [2022-01-11 07:13:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:12,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:12,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:12,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:13:12,391 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash -977695541, now seen corresponding path program 1 times [2022-01-11 07:13:12,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:12,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399497622] [2022-01-11 07:13:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:12,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:12,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:12,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399497622] [2022-01-11 07:13:12,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399497622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:12,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:12,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:12,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098019907] [2022-01-11 07:13:12,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:12,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:12,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,446 INFO L87 Difference]: Start difference. First operand 3116 states and 5407 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:12,575 INFO L93 Difference]: Finished difference Result 4087 states and 6820 transitions. [2022-01-11 07:13:12,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:12,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:12,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:12,589 INFO L225 Difference]: With dead ends: 4087 [2022-01-11 07:13:12,589 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:12,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,591 INFO L933 BasicCegarLoop]: 5375 mSDtfsCounter, 5275 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 5463 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:12,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 5463 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:13:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.73121387283237) internal successors, (5391), 3115 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5391 transitions. [2022-01-11 07:13:12,671 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5391 transitions. Word has length 121 [2022-01-11 07:13:12,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:12,671 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5391 transitions. [2022-01-11 07:13:12,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5391 transitions. [2022-01-11 07:13:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:12,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:12,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:12,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:13:12,673 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:12,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash -281389237, now seen corresponding path program 1 times [2022-01-11 07:13:12,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:12,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56180340] [2022-01-11 07:13:12,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:12,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:12,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:12,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56180340] [2022-01-11 07:13:12,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56180340] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:12,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:12,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:12,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31754809] [2022-01-11 07:13:12,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:12,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:12,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:12,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:12,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,717 INFO L87 Difference]: Start difference. First operand 3116 states and 5391 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:12,894 INFO L93 Difference]: Finished difference Result 4086 states and 6787 transitions. [2022-01-11 07:13:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:12,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:12,905 INFO L225 Difference]: With dead ends: 4086 [2022-01-11 07:13:12,905 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:12,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:12,909 INFO L933 BasicCegarLoop]: 5359 mSDtfsCounter, 5259 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5259 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:12,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5259 Valid, 5446 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:12,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7260757867694283) internal successors, (5375), 3115 states have internal predecessors, (5375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5375 transitions. [2022-01-11 07:13:12,993 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5375 transitions. Word has length 121 [2022-01-11 07:13:12,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:12,993 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5375 transitions. [2022-01-11 07:13:12,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5375 transitions. [2022-01-11 07:13:12,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:12,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:12,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:12,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:13:12,997 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1236411862, now seen corresponding path program 1 times [2022-01-11 07:13:12,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:12,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559293454] [2022-01-11 07:13:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:12,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:13,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:13,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559293454] [2022-01-11 07:13:13,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559293454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:13,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:13,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:13,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135414554] [2022-01-11 07:13:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:13,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:13,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:13,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,041 INFO L87 Difference]: Start difference. First operand 3116 states and 5375 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:13,142 INFO L93 Difference]: Finished difference Result 4085 states and 6754 transitions. [2022-01-11 07:13:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:13,150 INFO L225 Difference]: With dead ends: 4085 [2022-01-11 07:13:13,150 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:13,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,153 INFO L933 BasicCegarLoop]: 5343 mSDtfsCounter, 5243 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5243 SdHoareTripleChecker+Valid, 5429 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:13,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5243 Valid, 5429 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:13,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7209377007064868) internal successors, (5359), 3115 states have internal predecessors, (5359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5359 transitions. [2022-01-11 07:13:13,236 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5359 transitions. Word has length 121 [2022-01-11 07:13:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:13,236 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5359 transitions. [2022-01-11 07:13:13,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5359 transitions. [2022-01-11 07:13:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:13,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:13,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:13,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:13:13,238 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:13,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:13,238 INFO L85 PathProgramCache]: Analyzing trace with hash -844500471, now seen corresponding path program 1 times [2022-01-11 07:13:13,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:13,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653115000] [2022-01-11 07:13:13,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:13,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:13,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:13,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653115000] [2022-01-11 07:13:13,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653115000] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:13,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:13,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:13,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690842096] [2022-01-11 07:13:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:13,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:13,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,280 INFO L87 Difference]: Start difference. First operand 3116 states and 5359 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:13,377 INFO L93 Difference]: Finished difference Result 4084 states and 6721 transitions. [2022-01-11 07:13:13,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:13,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:13,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:13,384 INFO L225 Difference]: With dead ends: 4084 [2022-01-11 07:13:13,384 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:13,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,386 INFO L933 BasicCegarLoop]: 5327 mSDtfsCounter, 5227 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:13,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5227 Valid, 5412 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:13,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7157996146435452) internal successors, (5343), 3115 states have internal predecessors, (5343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5343 transitions. [2022-01-11 07:13:13,461 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5343 transitions. Word has length 121 [2022-01-11 07:13:13,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:13,461 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5343 transitions. [2022-01-11 07:13:13,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5343 transitions. [2022-01-11 07:13:13,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:13,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:13,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:13,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:13:13,463 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash -735009944, now seen corresponding path program 1 times [2022-01-11 07:13:13,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:13,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837284955] [2022-01-11 07:13:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:13,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:13,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:13,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:13,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837284955] [2022-01-11 07:13:13,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837284955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:13,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:13,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:13,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782925621] [2022-01-11 07:13:13,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:13,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:13,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:13,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:13,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,503 INFO L87 Difference]: Start difference. First operand 3116 states and 5343 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:13,603 INFO L93 Difference]: Finished difference Result 4083 states and 6688 transitions. [2022-01-11 07:13:13,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:13,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:13,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:13,609 INFO L225 Difference]: With dead ends: 4083 [2022-01-11 07:13:13,609 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:13,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,611 INFO L933 BasicCegarLoop]: 5311 mSDtfsCounter, 5211 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5211 SdHoareTripleChecker+Valid, 5395 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:13,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5211 Valid, 5395 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:13,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:13,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7106615285806037) internal successors, (5327), 3115 states have internal predecessors, (5327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5327 transitions. [2022-01-11 07:13:13,679 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5327 transitions. Word has length 121 [2022-01-11 07:13:13,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:13,679 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5327 transitions. [2022-01-11 07:13:13,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5327 transitions. [2022-01-11 07:13:13,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:13,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:13,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:13,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:13:13,681 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:13,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1115014713, now seen corresponding path program 1 times [2022-01-11 07:13:13,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:13,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57090264] [2022-01-11 07:13:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:13,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:13,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:13,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57090264] [2022-01-11 07:13:13,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57090264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:13,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:13,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:13,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515541180] [2022-01-11 07:13:13,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:13,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:13,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:13,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:13,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,720 INFO L87 Difference]: Start difference. First operand 3116 states and 5327 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:13,837 INFO L93 Difference]: Finished difference Result 4082 states and 6655 transitions. [2022-01-11 07:13:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:13,843 INFO L225 Difference]: With dead ends: 4082 [2022-01-11 07:13:13,843 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:13,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,846 INFO L933 BasicCegarLoop]: 5295 mSDtfsCounter, 5195 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5195 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:13,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5195 Valid, 5378 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:13,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7055234425176622) internal successors, (5311), 3115 states have internal predecessors, (5311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5311 transitions. [2022-01-11 07:13:13,943 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5311 transitions. Word has length 121 [2022-01-11 07:13:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:13,943 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5311 transitions. [2022-01-11 07:13:13,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:13,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5311 transitions. [2022-01-11 07:13:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:13,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:13,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:13,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:13:13,946 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:13,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1302603354, now seen corresponding path program 1 times [2022-01-11 07:13:13,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:13,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383919895] [2022-01-11 07:13:13,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:13,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:13,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:13,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383919895] [2022-01-11 07:13:13,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383919895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:13,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:13,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:13,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989128003] [2022-01-11 07:13:13,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:13,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:13,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:13,991 INFO L87 Difference]: Start difference. First operand 3116 states and 5311 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:14,111 INFO L93 Difference]: Finished difference Result 4081 states and 6622 transitions. [2022-01-11 07:13:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:14,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:14,117 INFO L225 Difference]: With dead ends: 4081 [2022-01-11 07:13:14,118 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:14,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:14,121 INFO L933 BasicCegarLoop]: 5279 mSDtfsCounter, 5179 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5179 SdHoareTripleChecker+Valid, 5361 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:14,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5179 Valid, 5361 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:14,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.7003853564547207) internal successors, (5295), 3115 states have internal predecessors, (5295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5295 transitions. [2022-01-11 07:13:14,218 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5295 transitions. Word has length 121 [2022-01-11 07:13:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:14,218 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5295 transitions. [2022-01-11 07:13:14,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5295 transitions. [2022-01-11 07:13:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:14,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:14,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:14,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:13:14,220 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1677110917, now seen corresponding path program 1 times [2022-01-11 07:13:14,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:14,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558967955] [2022-01-11 07:13:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:14,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:14,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:14,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:14,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558967955] [2022-01-11 07:13:14,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558967955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:14,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:14,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:14,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601345895] [2022-01-11 07:13:14,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:14,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:14,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:14,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:14,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:14,278 INFO L87 Difference]: Start difference. First operand 3116 states and 5295 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:14,399 INFO L93 Difference]: Finished difference Result 4080 states and 6589 transitions. [2022-01-11 07:13:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:14,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:14,405 INFO L225 Difference]: With dead ends: 4080 [2022-01-11 07:13:14,406 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:14,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:14,408 INFO L933 BasicCegarLoop]: 5263 mSDtfsCounter, 5163 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5163 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:14,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5163 Valid, 5344 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:14,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6952472703917791) internal successors, (5279), 3115 states have internal predecessors, (5279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5279 transitions. [2022-01-11 07:13:14,516 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5279 transitions. Word has length 121 [2022-01-11 07:13:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:14,516 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5279 transitions. [2022-01-11 07:13:14,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5279 transitions. [2022-01-11 07:13:14,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:14,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:14,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:14,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:13:14,518 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:14,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:14,519 INFO L85 PathProgramCache]: Analyzing trace with hash 218823908, now seen corresponding path program 1 times [2022-01-11 07:13:14,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:14,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675526707] [2022-01-11 07:13:14,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:14,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:14,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:14,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675526707] [2022-01-11 07:13:14,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675526707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:14,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:14,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:14,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212620824] [2022-01-11 07:13:14,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:14,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:14,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:14,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:14,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:14,564 INFO L87 Difference]: Start difference. First operand 3116 states and 5279 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:14,690 INFO L93 Difference]: Finished difference Result 4079 states and 6556 transitions. [2022-01-11 07:13:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:14,696 INFO L225 Difference]: With dead ends: 4079 [2022-01-11 07:13:14,696 INFO L226 Difference]: Without dead ends: 3116 [2022-01-11 07:13:14,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:14,699 INFO L933 BasicCegarLoop]: 5247 mSDtfsCounter, 5147 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5147 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:14,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5147 Valid, 5327 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:14,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3116 states. [2022-01-11 07:13:14,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3116 to 3116. [2022-01-11 07:13:14,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3114 states have (on average 1.6901091843288376) internal successors, (5263), 3115 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5263 transitions. [2022-01-11 07:13:14,783 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5263 transitions. Word has length 121 [2022-01-11 07:13:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:14,783 INFO L470 AbstractCegarLoop]: Abstraction has 3116 states and 5263 transitions. [2022-01-11 07:13:14,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5263 transitions. [2022-01-11 07:13:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:14,784 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:14,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:14,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:13:14,785 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1665847363, now seen corresponding path program 1 times [2022-01-11 07:13:14,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:14,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83302525] [2022-01-11 07:13:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:14,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:14,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:14,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83302525] [2022-01-11 07:13:14,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83302525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:14,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:14,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:13:14,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021288939] [2022-01-11 07:13:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:14,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:13:14,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:14,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:13:14,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:13:14,850 INFO L87 Difference]: Start difference. First operand 3116 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:15,122 INFO L93 Difference]: Finished difference Result 4458 states and 7046 transitions. [2022-01-11 07:13:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:13:15,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:15,129 INFO L225 Difference]: With dead ends: 4458 [2022-01-11 07:13:15,129 INFO L226 Difference]: Without dead ends: 3509 [2022-01-11 07:13:15,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:13:15,132 INFO L933 BasicCegarLoop]: 5351 mSDtfsCounter, 3549 mSDsluCounter, 13532 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 18883 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:15,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3549 Valid, 18883 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:13:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2022-01-11 07:13:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3119. [2022-01-11 07:13:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3117 states have (on average 1.685915944818736) internal successors, (5255), 3118 states have internal predecessors, (5255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 5255 transitions. [2022-01-11 07:13:15,238 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 5255 transitions. Word has length 121 [2022-01-11 07:13:15,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:15,238 INFO L470 AbstractCegarLoop]: Abstraction has 3119 states and 5255 transitions. [2022-01-11 07:13:15,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 5255 transitions. [2022-01-11 07:13:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:15,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:15,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:15,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:13:15,240 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:15,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1679380164, now seen corresponding path program 1 times [2022-01-11 07:13:15,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:15,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142776603] [2022-01-11 07:13:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:15,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:15,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:15,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142776603] [2022-01-11 07:13:15,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142776603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:15,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:15,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:13:15,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819398436] [2022-01-11 07:13:15,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:15,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:13:15,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:13:15,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:13:15,302 INFO L87 Difference]: Start difference. First operand 3119 states and 5255 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:15,580 INFO L93 Difference]: Finished difference Result 4710 states and 7343 transitions. [2022-01-11 07:13:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:13:15,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:15,588 INFO L225 Difference]: With dead ends: 4710 [2022-01-11 07:13:15,588 INFO L226 Difference]: Without dead ends: 3793 [2022-01-11 07:13:15,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:13:15,590 INFO L933 BasicCegarLoop]: 5248 mSDtfsCounter, 2894 mSDsluCounter, 14816 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 20064 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:15,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2894 Valid, 20064 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:13:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2022-01-11 07:13:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3122. [2022-01-11 07:13:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.6817307692307693) internal successors, (5247), 3121 states have internal predecessors, (5247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5247 transitions. [2022-01-11 07:13:15,714 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5247 transitions. Word has length 121 [2022-01-11 07:13:15,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:15,715 INFO L470 AbstractCegarLoop]: Abstraction has 3122 states and 5247 transitions. [2022-01-11 07:13:15,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5247 transitions. [2022-01-11 07:13:15,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:15,716 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:15,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:15,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:13:15,717 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:15,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash -644647675, now seen corresponding path program 1 times [2022-01-11 07:13:15,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:15,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432848457] [2022-01-11 07:13:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:15,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:15,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:15,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432848457] [2022-01-11 07:13:15,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432848457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:15,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:15,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:13:15,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086879494] [2022-01-11 07:13:15,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:15,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:13:15,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:15,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:13:15,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:13:15,782 INFO L87 Difference]: Start difference. First operand 3122 states and 5247 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:16,116 INFO L93 Difference]: Finished difference Result 4768 states and 7386 transitions. [2022-01-11 07:13:16,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:13:16,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:16,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:16,124 INFO L225 Difference]: With dead ends: 4768 [2022-01-11 07:13:16,124 INFO L226 Difference]: Without dead ends: 3855 [2022-01-11 07:13:16,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 07:13:16,126 INFO L933 BasicCegarLoop]: 5219 mSDtfsCounter, 2747 mSDsluCounter, 15049 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2747 SdHoareTripleChecker+Valid, 20268 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:16,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2747 Valid, 20268 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:13:16,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2022-01-11 07:13:16,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3125. [2022-01-11 07:13:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 3123 states have (on average 1.6775536343259687) internal successors, (5239), 3124 states have internal predecessors, (5239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 5239 transitions. [2022-01-11 07:13:16,241 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 5239 transitions. Word has length 121 [2022-01-11 07:13:16,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:16,241 INFO L470 AbstractCegarLoop]: Abstraction has 3125 states and 5239 transitions. [2022-01-11 07:13:16,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 5239 transitions. [2022-01-11 07:13:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:16,242 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:16,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:16,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:13:16,243 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1714659334, now seen corresponding path program 1 times [2022-01-11 07:13:16,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:16,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628487067] [2022-01-11 07:13:16,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:16,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:16,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:16,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628487067] [2022-01-11 07:13:16,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628487067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:16,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:16,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:16,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722113459] [2022-01-11 07:13:16,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:16,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:16,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:16,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:16,311 INFO L87 Difference]: Start difference. First operand 3125 states and 5239 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:16,496 INFO L93 Difference]: Finished difference Result 4938 states and 7552 transitions. [2022-01-11 07:13:16,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:16,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:16,504 INFO L225 Difference]: With dead ends: 4938 [2022-01-11 07:13:16,504 INFO L226 Difference]: Without dead ends: 3949 [2022-01-11 07:13:16,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:16,507 INFO L933 BasicCegarLoop]: 5224 mSDtfsCounter, 5056 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 6346 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:16,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 6346 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:16,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2022-01-11 07:13:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3947. [2022-01-11 07:13:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5946768060836503) internal successors, (6291), 3946 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6291 transitions. [2022-01-11 07:13:16,725 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6291 transitions. Word has length 121 [2022-01-11 07:13:16,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:16,725 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6291 transitions. [2022-01-11 07:13:16,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6291 transitions. [2022-01-11 07:13:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:16,727 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:16,727 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:16,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:13:16,727 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:16,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash -469017593, now seen corresponding path program 1 times [2022-01-11 07:13:16,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244071865] [2022-01-11 07:13:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:16,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:16,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:16,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244071865] [2022-01-11 07:13:16,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244071865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:16,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:16,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:16,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690295130] [2022-01-11 07:13:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:16,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:16,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:16,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:16,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:16,793 INFO L87 Difference]: Start difference. First operand 3947 states and 6291 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:16,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:16,978 INFO L93 Difference]: Finished difference Result 5754 states and 8595 transitions. [2022-01-11 07:13:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:16,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:16,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:16,989 INFO L225 Difference]: With dead ends: 5754 [2022-01-11 07:13:16,989 INFO L226 Difference]: Without dead ends: 3947 [2022-01-11 07:13:16,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:16,995 INFO L933 BasicCegarLoop]: 5218 mSDtfsCounter, 5131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 5218 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:16,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5131 Valid, 5218 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2022-01-11 07:13:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3947. [2022-01-11 07:13:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.5926489226869456) internal successors, (6283), 3946 states have internal predecessors, (6283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 6283 transitions. [2022-01-11 07:13:17,198 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 6283 transitions. Word has length 121 [2022-01-11 07:13:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:17,198 INFO L470 AbstractCegarLoop]: Abstraction has 3947 states and 6283 transitions. [2022-01-11 07:13:17,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:17,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 6283 transitions. [2022-01-11 07:13:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 07:13:17,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:17,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:17,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:13:17,201 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash 224084104, now seen corresponding path program 1 times [2022-01-11 07:13:17,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:17,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368556026] [2022-01-11 07:13:17,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:17,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:17,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:17,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368556026] [2022-01-11 07:13:17,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368556026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:17,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:17,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:13:17,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132913982] [2022-01-11 07:13:17,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:17,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:17,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:17,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:17,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:17,256 INFO L87 Difference]: Start difference. First operand 3947 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:17,610 INFO L93 Difference]: Finished difference Result 7420 states and 10715 transitions. [2022-01-11 07:13:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:17,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-01-11 07:13:17,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:17,623 INFO L225 Difference]: With dead ends: 7420 [2022-01-11 07:13:17,623 INFO L226 Difference]: Without dead ends: 5628 [2022-01-11 07:13:17,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:17,627 INFO L933 BasicCegarLoop]: 5208 mSDtfsCounter, 5073 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:17,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5073 Valid, 6307 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2022-01-11 07:13:17,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5498. [2022-01-11 07:13:17,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5498 states, 5496 states have (on average 1.5007278020378456) internal successors, (8248), 5497 states have internal predecessors, (8248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5498 states to 5498 states and 8248 transitions. [2022-01-11 07:13:17,907 INFO L78 Accepts]: Start accepts. Automaton has 5498 states and 8248 transitions. Word has length 121 [2022-01-11 07:13:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:17,907 INFO L470 AbstractCegarLoop]: Abstraction has 5498 states and 8248 transitions. [2022-01-11 07:13:17,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5498 states and 8248 transitions. [2022-01-11 07:13:17,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:13:17,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:17,911 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:17,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:13:17,911 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:17,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:17,912 INFO L85 PathProgramCache]: Analyzing trace with hash 30719052, now seen corresponding path program 1 times [2022-01-11 07:13:17,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:17,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123088263] [2022-01-11 07:13:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:17,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:17,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:17,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:17,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123088263] [2022-01-11 07:13:17,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123088263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:17,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:17,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:17,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759240786] [2022-01-11 07:13:17,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:17,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:17,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:17,976 INFO L87 Difference]: Start difference. First operand 5498 states and 8248 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:18,474 INFO L93 Difference]: Finished difference Result 12013 states and 16541 transitions. [2022-01-11 07:13:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:13:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:18,493 INFO L225 Difference]: With dead ends: 12013 [2022-01-11 07:13:18,493 INFO L226 Difference]: Without dead ends: 8676 [2022-01-11 07:13:18,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:18,500 INFO L933 BasicCegarLoop]: 5205 mSDtfsCounter, 5094 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5094 SdHoareTripleChecker+Valid, 6304 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:18,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5094 Valid, 6304 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8676 states. [2022-01-11 07:13:18,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8676 to 8446. [2022-01-11 07:13:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8446 states, 8444 states have (on average 1.4187588820464234) internal successors, (11980), 8445 states have internal predecessors, (11980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:18,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8446 states to 8446 states and 11980 transitions. [2022-01-11 07:13:18,950 INFO L78 Accepts]: Start accepts. Automaton has 8446 states and 11980 transitions. Word has length 196 [2022-01-11 07:13:18,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:18,951 INFO L470 AbstractCegarLoop]: Abstraction has 8446 states and 11980 transitions. [2022-01-11 07:13:18,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8446 states and 11980 transitions. [2022-01-11 07:13:18,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:13:18,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:18,955 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:18,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:13:18,956 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:18,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:18,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2021145588, now seen corresponding path program 1 times [2022-01-11 07:13:18,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:18,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267137661] [2022-01-11 07:13:18,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:18,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:19,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:19,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267137661] [2022-01-11 07:13:19,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267137661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:19,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:19,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:19,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904686295] [2022-01-11 07:13:19,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:19,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:19,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:19,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:19,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:19,025 INFO L87 Difference]: Start difference. First operand 8446 states and 11980 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:19,873 INFO L93 Difference]: Finished difference Result 20515 states and 27169 transitions. [2022-01-11 07:13:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:19,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:13:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:19,907 INFO L225 Difference]: With dead ends: 20515 [2022-01-11 07:13:19,907 INFO L226 Difference]: Without dead ends: 14303 [2022-01-11 07:13:19,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:19,920 INFO L933 BasicCegarLoop]: 5881 mSDtfsCounter, 4911 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4911 SdHoareTripleChecker+Valid, 7122 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:19,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4911 Valid, 7122 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:19,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14303 states. [2022-01-11 07:13:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14303 to 14301. [2022-01-11 07:13:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14301 states, 14299 states have (on average 1.3461780544093993) internal successors, (19249), 14300 states have internal predecessors, (19249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14301 states to 14301 states and 19249 transitions. [2022-01-11 07:13:20,883 INFO L78 Accepts]: Start accepts. Automaton has 14301 states and 19249 transitions. Word has length 196 [2022-01-11 07:13:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:20,884 INFO L470 AbstractCegarLoop]: Abstraction has 14301 states and 19249 transitions. [2022-01-11 07:13:20,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 14301 states and 19249 transitions. [2022-01-11 07:13:20,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-01-11 07:13:20,895 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:20,895 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:20,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:13:20,895 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:20,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash 2037203883, now seen corresponding path program 1 times [2022-01-11 07:13:20,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:20,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196594624] [2022-01-11 07:13:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:20,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:13:20,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:20,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196594624] [2022-01-11 07:13:20,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196594624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:20,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:20,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:20,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464411703] [2022-01-11 07:13:20,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:20,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:20,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:20,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:20,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:20,949 INFO L87 Difference]: Start difference. First operand 14301 states and 19249 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:21,859 INFO L93 Difference]: Finished difference Result 26261 states and 34278 transitions. [2022-01-11 07:13:21,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:21,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-01-11 07:13:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:21,891 INFO L225 Difference]: With dead ends: 26261 [2022-01-11 07:13:21,891 INFO L226 Difference]: Without dead ends: 14194 [2022-01-11 07:13:21,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:21,911 INFO L933 BasicCegarLoop]: 5217 mSDtfsCounter, 1255 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 9175 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:21,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 9175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14194 states. [2022-01-11 07:13:22,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14194 to 14194. [2022-01-11 07:13:22,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14194 states, 14192 states have (on average 1.3473083427282977) internal successors, (19121), 14193 states have internal predecessors, (19121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14194 states to 14194 states and 19121 transitions. [2022-01-11 07:13:22,740 INFO L78 Accepts]: Start accepts. Automaton has 14194 states and 19121 transitions. Word has length 196 [2022-01-11 07:13:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:22,741 INFO L470 AbstractCegarLoop]: Abstraction has 14194 states and 19121 transitions. [2022-01-11 07:13:22,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 14194 states and 19121 transitions. [2022-01-11 07:13:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:13:22,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:22,749 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:22,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:13:22,749 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1501960874, now seen corresponding path program 1 times [2022-01-11 07:13:22,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:22,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536317813] [2022-01-11 07:13:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:22,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:22,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:22,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536317813] [2022-01-11 07:13:22,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536317813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:22,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:22,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:22,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120042903] [2022-01-11 07:13:22,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:22,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:22,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:22,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:22,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:22,810 INFO L87 Difference]: Start difference. First operand 14194 states and 19121 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:24,177 INFO L93 Difference]: Finished difference Result 37692 states and 48520 transitions. [2022-01-11 07:13:24,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:24,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-11 07:13:24,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:24,230 INFO L225 Difference]: With dead ends: 37692 [2022-01-11 07:13:24,230 INFO L226 Difference]: Without dead ends: 25732 [2022-01-11 07:13:24,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:24,255 INFO L933 BasicCegarLoop]: 5486 mSDtfsCounter, 5089 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6714 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:24,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6714 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25732 states. [2022-01-11 07:13:25,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25732 to 24994. [2022-01-11 07:13:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24994 states, 24992 states have (on average 1.3019366197183098) internal successors, (32538), 24993 states have internal predecessors, (32538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24994 states to 24994 states and 32538 transitions. [2022-01-11 07:13:25,695 INFO L78 Accepts]: Start accepts. Automaton has 24994 states and 32538 transitions. Word has length 197 [2022-01-11 07:13:25,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:25,695 INFO L470 AbstractCegarLoop]: Abstraction has 24994 states and 32538 transitions. [2022-01-11 07:13:25,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand 24994 states and 32538 transitions. [2022-01-11 07:13:25,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-11 07:13:25,710 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:25,710 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:25,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 07:13:25,711 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:25,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:25,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1939712201, now seen corresponding path program 1 times [2022-01-11 07:13:25,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:25,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975748721] [2022-01-11 07:13:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:25,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:13:25,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:25,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975748721] [2022-01-11 07:13:25,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975748721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:25,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:25,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:25,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369106125] [2022-01-11 07:13:25,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:25,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:25,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:25,750 INFO L87 Difference]: Start difference. First operand 24994 states and 32538 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:27,277 INFO L93 Difference]: Finished difference Result 47710 states and 60931 transitions. [2022-01-11 07:13:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:27,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-11 07:13:27,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:27,322 INFO L225 Difference]: With dead ends: 47710 [2022-01-11 07:13:27,322 INFO L226 Difference]: Without dead ends: 24888 [2022-01-11 07:13:27,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:27,355 INFO L933 BasicCegarLoop]: 5216 mSDtfsCounter, 1253 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:27,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 9174 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2022-01-11 07:13:28,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 24888. [2022-01-11 07:13:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24888 states, 24886 states have (on average 1.3024190307803585) internal successors, (32412), 24887 states have internal predecessors, (32412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:28,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24888 states to 24888 states and 32412 transitions. [2022-01-11 07:13:28,973 INFO L78 Accepts]: Start accepts. Automaton has 24888 states and 32412 transitions. Word has length 197 [2022-01-11 07:13:28,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:28,974 INFO L470 AbstractCegarLoop]: Abstraction has 24888 states and 32412 transitions. [2022-01-11 07:13:28,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 24888 states and 32412 transitions. [2022-01-11 07:13:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:13:28,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:28,984 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:28,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 07:13:28,985 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1728213883, now seen corresponding path program 1 times [2022-01-11 07:13:28,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:28,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220391951] [2022-01-11 07:13:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:28,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:29,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:29,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220391951] [2022-01-11 07:13:29,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220391951] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:29,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:29,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:29,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261547153] [2022-01-11 07:13:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:29,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:29,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:29,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:29,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:29,046 INFO L87 Difference]: Start difference. First operand 24888 states and 32412 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:31,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:31,581 INFO L93 Difference]: Finished difference Result 69189 states and 87657 transitions. [2022-01-11 07:13:31,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:31,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-11 07:13:31,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:31,653 INFO L225 Difference]: With dead ends: 69189 [2022-01-11 07:13:31,653 INFO L226 Difference]: Without dead ends: 46535 [2022-01-11 07:13:31,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:31,674 INFO L933 BasicCegarLoop]: 5505 mSDtfsCounter, 5089 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:31,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6731 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46535 states. [2022-01-11 07:13:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46535 to 45285. [2022-01-11 07:13:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45285 states, 45283 states have (on average 1.2751584479826867) internal successors, (57743), 45284 states have internal predecessors, (57743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45285 states to 45285 states and 57743 transitions. [2022-01-11 07:13:34,369 INFO L78 Accepts]: Start accepts. Automaton has 45285 states and 57743 transitions. Word has length 198 [2022-01-11 07:13:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:34,370 INFO L470 AbstractCegarLoop]: Abstraction has 45285 states and 57743 transitions. [2022-01-11 07:13:34,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 45285 states and 57743 transitions. [2022-01-11 07:13:34,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-01-11 07:13:34,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:34,388 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:34,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 07:13:34,388 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:34,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:34,388 INFO L85 PathProgramCache]: Analyzing trace with hash -905764968, now seen corresponding path program 1 times [2022-01-11 07:13:34,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615390316] [2022-01-11 07:13:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:34,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 07:13:34,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:34,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615390316] [2022-01-11 07:13:34,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615390316] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:34,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:34,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:34,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268908881] [2022-01-11 07:13:34,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:34,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:34,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:34,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:34,427 INFO L87 Difference]: Start difference. First operand 45285 states and 57743 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:37,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:37,388 INFO L93 Difference]: Finished difference Result 88286 states and 111335 transitions. [2022-01-11 07:13:37,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:37,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2022-01-11 07:13:37,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:37,453 INFO L225 Difference]: With dead ends: 88286 [2022-01-11 07:13:37,453 INFO L226 Difference]: Without dead ends: 45180 [2022-01-11 07:13:37,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:37,490 INFO L933 BasicCegarLoop]: 5215 mSDtfsCounter, 1251 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 9173 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:37,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1251 Valid, 9173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45180 states. [2022-01-11 07:13:40,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45180 to 45180. [2022-01-11 07:13:40,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45180 states, 45178 states have (on average 1.275377396077737) internal successors, (57619), 45179 states have internal predecessors, (57619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:40,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45180 states to 45180 states and 57619 transitions. [2022-01-11 07:13:40,534 INFO L78 Accepts]: Start accepts. Automaton has 45180 states and 57619 transitions. Word has length 198 [2022-01-11 07:13:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:13:40,534 INFO L470 AbstractCegarLoop]: Abstraction has 45180 states and 57619 transitions. [2022-01-11 07:13:40,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 45180 states and 57619 transitions. [2022-01-11 07:13:40,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-01-11 07:13:40,548 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:13:40,548 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:13:40,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 07:13:40,548 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:13:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:13:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 61581923, now seen corresponding path program 1 times [2022-01-11 07:13:40,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:13:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563030191] [2022-01-11 07:13:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:13:40,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:13:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:13:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:13:40,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:13:40,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563030191] [2022-01-11 07:13:40,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563030191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:13:40,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:13:40,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:13:40,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082207068] [2022-01-11 07:13:40,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:13:40,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:13:40,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:13:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:13:40,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:40,612 INFO L87 Difference]: Start difference. First operand 45180 states and 57619 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:13:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:13:45,924 INFO L93 Difference]: Finished difference Result 128648 states and 161470 transitions. [2022-01-11 07:13:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:13:45,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2022-01-11 07:13:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:13:46,045 INFO L225 Difference]: With dead ends: 128648 [2022-01-11 07:13:46,046 INFO L226 Difference]: Without dead ends: 85702 [2022-01-11 07:13:46,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:13:46,082 INFO L933 BasicCegarLoop]: 5506 mSDtfsCounter, 5089 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5089 SdHoareTripleChecker+Valid, 6730 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:13:46,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5089 Valid, 6730 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:13:46,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85702 states.