/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_label46+token_ring.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 07:10:00,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 07:10:00,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 07:10:00,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 07:10:00,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 07:10:00,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 07:10:00,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 07:10:00,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 07:10:00,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 07:10:00,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 07:10:00,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 07:10:00,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 07:10:00,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 07:10:00,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 07:10:00,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 07:10:00,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 07:10:00,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 07:10:00,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 07:10:00,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 07:10:00,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 07:10:00,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 07:10:00,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 07:10:00,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 07:10:00,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 07:10:00,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 07:10:00,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 07:10:00,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 07:10:00,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 07:10:00,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 07:10:00,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 07:10:00,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 07:10:00,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 07:10:00,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 07:10:00,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 07:10:00,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 07:10:00,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 07:10:00,943 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 07:10:00,975 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 07:10:00,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 07:10:00,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 07:10:00,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 07:10:00,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 07:10:00,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 07:10:00,983 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 07:10:00,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 07:10:00,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 07:10:00,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 07:10:00,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 07:10:00,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 07:10:00,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 07:10:00,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 07:10:00,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 07:10:00,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 07:10:00,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:10:00,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 07:10:00,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 07:10:00,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 07:10:00,987 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 07:10:00,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 07:10:01,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 07:10:01,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 07:10:01,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 07:10:01,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 07:10:01,224 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 07:10:01,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.05.cil-2.c [2022-01-11 07:10:01,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0f5711b/27b4603568e749958f90e45bc4111f44/FLAG37d31a31c [2022-01-11 07:10:02,162 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 07:10:02,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.05.cil-2.c [2022-01-11 07:10:02,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0f5711b/27b4603568e749958f90e45bc4111f44/FLAG37d31a31c [2022-01-11 07:10:02,257 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0f5711b/27b4603568e749958f90e45bc4111f44 [2022-01-11 07:10:02,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 07:10:02,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 07:10:02,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 07:10:02,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 07:10:02,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 07:10:02,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:10:02" (1/1) ... [2022-01-11 07:10:02,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb01a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:02, skipping insertion in model container [2022-01-11 07:10:02,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 07:10:02" (1/1) ... [2022-01-11 07:10:02,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 07:10:02,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 07:10:03,958 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_label46+token_ring.05.cil-2.c[382357,382370] [2022-01-11 07:10:03,983 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_label46+token_ring.05.cil-2.c[383339,383352] [2022-01-11 07:10:04,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:10:04,133 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 07:10:04,863 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_label46+token_ring.05.cil-2.c[382357,382370] [2022-01-11 07:10:04,867 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_label46+token_ring.05.cil-2.c[383339,383352] [2022-01-11 07:10:04,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 07:10:05,007 INFO L208 MainTranslator]: Completed translation [2022-01-11 07:10:05,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05 WrapperNode [2022-01-11 07:10:05,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 07:10:05,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 07:10:05,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 07:10:05,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 07:10:05,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,379 INFO L137 Inliner]: procedures = 55, calls = 57, calls flagged for inlining = 52, calls inlined = 105, statements flattened = 13688 [2022-01-11 07:10:05,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 07:10:05,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 07:10:05,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 07:10:05,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 07:10:05,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 07:10:05,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 07:10:05,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 07:10:05,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 07:10:05,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (1/1) ... [2022-01-11 07:10:05,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 07:10:05,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 07:10:05,980 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 07:10:05,994 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 07:10:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 07:10:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 07:10:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 07:10:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 07:10:06,150 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 07:10:06,152 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 07:10:14,724 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 07:10:14,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 07:10:14,750 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-01-11 07:10:14,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:14 BoogieIcfgContainer [2022-01-11 07:10:14,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 07:10:14,754 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 07:10:14,754 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 07:10:14,755 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 07:10:14,757 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:14" (1/1) ... [2022-01-11 07:10:16,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:10:16 BasicIcfg [2022-01-11 07:10:16,383 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 07:10:16,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 07:10:16,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 07:10:16,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 07:10:16,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 07:10:02" (1/4) ... [2022-01-11 07:10:16,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abb2368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:10:16, skipping insertion in model container [2022-01-11 07:10:16,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 07:10:05" (2/4) ... [2022-01-11 07:10:16,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abb2368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 07:10:16, skipping insertion in model container [2022-01-11 07:10:16,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 07:10:14" (3/4) ... [2022-01-11 07:10:16,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abb2368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 07:10:16, skipping insertion in model container [2022-01-11 07:10:16,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 07:10:16" (4/4) ... [2022-01-11 07:10:16,390 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.05.cil-2.cTransformedIcfg [2022-01-11 07:10:16,393 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 07:10:16,394 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 07:10:16,446 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 07:10:16,454 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 07:10:16,454 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 07:10:16,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 2744 states, 2740 states have (on average 1.802919708029197) internal successors, (4940), 2743 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:16,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:16,518 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] [2022-01-11 07:10:16,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2068063412, now seen corresponding path program 1 times [2022-01-11 07:10:16,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:16,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023606386] [2022-01-11 07:10:16,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:16,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:16,776 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 07:10:16,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:16,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023606386] [2022-01-11 07:10:16,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023606386] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:16,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:16,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:16,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029295682] [2022-01-11 07:10:16,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:16,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:16,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:16,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:16,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:16,813 INFO L87 Difference]: Start difference. First operand has 2744 states, 2740 states have (on average 1.802919708029197) internal successors, (4940), 2743 states have internal predecessors, (4940), 0 states have call successors, (0), 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 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:17,197 INFO L93 Difference]: Finished difference Result 5910 states and 10522 transitions. [2022-01-11 07:10:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:17,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:17,227 INFO L225 Difference]: With dead ends: 5910 [2022-01-11 07:10:17,227 INFO L226 Difference]: Without dead ends: 3108 [2022-01-11 07:10:17,238 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 07:10:17,244 INFO L933 BasicCegarLoop]: 4851 mSDtfsCounter, 4777 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4777 SdHoareTripleChecker+Valid, 5554 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 07:10:17,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4777 Valid, 5554 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-01-11 07:10:17,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2022-01-11 07:10:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7497581425346662) internal successors, (5426), 3103 states have internal predecessors, (5426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5426 transitions. [2022-01-11 07:10:17,398 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5426 transitions. Word has length 88 [2022-01-11 07:10:17,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:17,399 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5426 transitions. [2022-01-11 07:10:17,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5426 transitions. [2022-01-11 07:10:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:17,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:17,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 07:10:17,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 07:10:17,406 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:17,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:17,407 INFO L85 PathProgramCache]: Analyzing trace with hash -156474668, now seen corresponding path program 1 times [2022-01-11 07:10:17,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:17,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943636917] [2022-01-11 07:10:17,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:17,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:17,505 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 07:10:17,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:17,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943636917] [2022-01-11 07:10:17,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943636917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:17,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:17,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:17,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549763923] [2022-01-11 07:10:17,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:17,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:17,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:17,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:17,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:17,509 INFO L87 Difference]: Start difference. First operand 3104 states and 5426 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:17,601 INFO L93 Difference]: Finished difference Result 4074 states and 6874 transitions. [2022-01-11 07:10:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:17,616 INFO L225 Difference]: With dead ends: 4074 [2022-01-11 07:10:17,617 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:17,621 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 07:10:17,622 INFO L933 BasicCegarLoop]: 4778 mSDtfsCounter, 4770 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 4778 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 07:10:17,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4770 Valid, 4778 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.747178329571106) internal successors, (5418), 3103 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5418 transitions. [2022-01-11 07:10:17,701 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5418 transitions. Word has length 88 [2022-01-11 07:10:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:17,702 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5418 transitions. [2022-01-11 07:10:17,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5418 transitions. [2022-01-11 07:10:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:17,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:17,709 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] [2022-01-11 07:10:17,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 07:10:17,714 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:17,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:17,715 INFO L85 PathProgramCache]: Analyzing trace with hash 741597364, now seen corresponding path program 1 times [2022-01-11 07:10:17,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:17,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408571803] [2022-01-11 07:10:17,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:17,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:17,770 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 07:10:17,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:17,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408571803] [2022-01-11 07:10:17,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408571803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:17,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:17,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:17,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462766661] [2022-01-11 07:10:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:17,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:17,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:17,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:17,773 INFO L87 Difference]: Start difference. First operand 3104 states and 5418 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:17,855 INFO L93 Difference]: Finished difference Result 4073 states and 6857 transitions. [2022-01-11 07:10:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:17,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:17,868 INFO L225 Difference]: With dead ends: 4073 [2022-01-11 07:10:17,868 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:17,876 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 07:10:17,879 INFO L933 BasicCegarLoop]: 4773 mSDtfsCounter, 4764 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4764 SdHoareTripleChecker+Valid, 4773 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 07:10:17,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4764 Valid, 4773 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:17,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.744598516607546) internal successors, (5410), 3103 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5410 transitions. [2022-01-11 07:10:17,972 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5410 transitions. Word has length 88 [2022-01-11 07:10:17,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:17,974 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5410 transitions. [2022-01-11 07:10:17,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:17,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5410 transitions. [2022-01-11 07:10:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:17,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:17,976 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] [2022-01-11 07:10:17,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 07:10:17,976 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:17,977 INFO L85 PathProgramCache]: Analyzing trace with hash -892000556, now seen corresponding path program 1 times [2022-01-11 07:10:17,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:17,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223592976] [2022-01-11 07:10:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:17,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:18,055 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 07:10:18,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:18,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223592976] [2022-01-11 07:10:18,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223592976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:18,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:18,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:18,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268243242] [2022-01-11 07:10:18,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:18,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:18,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:18,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:18,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:18,058 INFO L87 Difference]: Start difference. First operand 3104 states and 5410 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:18,146 INFO L93 Difference]: Finished difference Result 4072 states and 6840 transitions. [2022-01-11 07:10:18,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:18,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:18,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:18,158 INFO L225 Difference]: With dead ends: 4072 [2022-01-11 07:10:18,158 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:18,162 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 07:10:18,168 INFO L933 BasicCegarLoop]: 4768 mSDtfsCounter, 4758 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 4768 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 07:10:18,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4758 Valid, 4768 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:18,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:18,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:18,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7420187036439858) internal successors, (5402), 3103 states have internal predecessors, (5402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5402 transitions. [2022-01-11 07:10:18,257 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5402 transitions. Word has length 88 [2022-01-11 07:10:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:18,257 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5402 transitions. [2022-01-11 07:10:18,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5402 transitions. [2022-01-11 07:10:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:18,261 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:18,261 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] [2022-01-11 07:10:18,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 07:10:18,262 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:18,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1914528588, now seen corresponding path program 1 times [2022-01-11 07:10:18,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:18,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315122104] [2022-01-11 07:10:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:18,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:18,344 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 07:10:18,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:18,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315122104] [2022-01-11 07:10:18,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315122104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:18,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:18,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:18,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840533690] [2022-01-11 07:10:18,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:18,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:18,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:18,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:18,347 INFO L87 Difference]: Start difference. First operand 3104 states and 5402 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:18,436 INFO L93 Difference]: Finished difference Result 4071 states and 6823 transitions. [2022-01-11 07:10:18,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:18,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:18,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:18,448 INFO L225 Difference]: With dead ends: 4071 [2022-01-11 07:10:18,448 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:18,450 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 07:10:18,451 INFO L933 BasicCegarLoop]: 4763 mSDtfsCounter, 4752 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 4763 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 07:10:18,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4752 Valid, 4763 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:18,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7394388906804257) internal successors, (5394), 3103 states have internal predecessors, (5394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5394 transitions. [2022-01-11 07:10:18,613 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5394 transitions. Word has length 88 [2022-01-11 07:10:18,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:18,616 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5394 transitions. [2022-01-11 07:10:18,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5394 transitions. [2022-01-11 07:10:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:18,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:18,618 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] [2022-01-11 07:10:18,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 07:10:18,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:18,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1516169940, now seen corresponding path program 1 times [2022-01-11 07:10:18,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:18,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170831082] [2022-01-11 07:10:18,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:18,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:18,675 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 07:10:18,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:18,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170831082] [2022-01-11 07:10:18,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170831082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:18,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:18,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:18,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105605064] [2022-01-11 07:10:18,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:18,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:18,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:18,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:18,678 INFO L87 Difference]: Start difference. First operand 3104 states and 5394 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:18,753 INFO L93 Difference]: Finished difference Result 4070 states and 6806 transitions. [2022-01-11 07:10:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:18,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:18,765 INFO L225 Difference]: With dead ends: 4070 [2022-01-11 07:10:18,765 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:18,767 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 07:10:18,769 INFO L933 BasicCegarLoop]: 4758 mSDtfsCounter, 4746 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4746 SdHoareTripleChecker+Valid, 4758 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 07:10:18,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4746 Valid, 4758 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:18,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:18,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7368590777168655) internal successors, (5386), 3103 states have internal predecessors, (5386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5386 transitions. [2022-01-11 07:10:18,867 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5386 transitions. Word has length 88 [2022-01-11 07:10:18,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:18,868 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5386 transitions. [2022-01-11 07:10:18,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5386 transitions. [2022-01-11 07:10:18,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:18,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:18,869 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] [2022-01-11 07:10:18,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 07:10:18,870 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:18,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1005561676, now seen corresponding path program 1 times [2022-01-11 07:10:18,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:18,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249287356] [2022-01-11 07:10:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:18,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:18,915 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 07:10:18,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:18,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249287356] [2022-01-11 07:10:18,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249287356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:18,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:18,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:18,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896116033] [2022-01-11 07:10:18,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:18,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:18,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:18,918 INFO L87 Difference]: Start difference. First operand 3104 states and 5386 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:19,037 INFO L93 Difference]: Finished difference Result 4068 states and 6787 transitions. [2022-01-11 07:10:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:19,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:19,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:19,050 INFO L225 Difference]: With dead ends: 4068 [2022-01-11 07:10:19,051 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:19,053 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 07:10:19,054 INFO L933 BasicCegarLoop]: 4737 mSDtfsCounter, 4669 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:19,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 4795 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:19,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7297645920670752) internal successors, (5364), 3103 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5364 transitions. [2022-01-11 07:10:19,135 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5364 transitions. Word has length 88 [2022-01-11 07:10:19,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:19,135 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5364 transitions. [2022-01-11 07:10:19,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5364 transitions. [2022-01-11 07:10:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:19,136 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:19,137 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] [2022-01-11 07:10:19,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 07:10:19,137 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:19,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -580741388, now seen corresponding path program 1 times [2022-01-11 07:10:19,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:19,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371420361] [2022-01-11 07:10:19,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:19,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:19,169 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 07:10:19,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:19,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371420361] [2022-01-11 07:10:19,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371420361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:19,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:19,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:19,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197401218] [2022-01-11 07:10:19,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:19,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:19,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:19,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:19,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:19,171 INFO L87 Difference]: Start difference. First operand 3104 states and 5364 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:19,260 INFO L93 Difference]: Finished difference Result 4067 states and 6742 transitions. [2022-01-11 07:10:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:19,272 INFO L225 Difference]: With dead ends: 4067 [2022-01-11 07:10:19,272 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:19,274 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 07:10:19,274 INFO L933 BasicCegarLoop]: 4724 mSDtfsCounter, 4656 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4656 SdHoareTripleChecker+Valid, 4781 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:19,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4656 Valid, 4781 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:19,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7226701064172847) internal successors, (5342), 3103 states have internal predecessors, (5342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5342 transitions. [2022-01-11 07:10:19,353 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5342 transitions. Word has length 88 [2022-01-11 07:10:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:19,353 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5342 transitions. [2022-01-11 07:10:19,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5342 transitions. [2022-01-11 07:10:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:19,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:19,354 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] [2022-01-11 07:10:19,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 07:10:19,355 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1199240468, now seen corresponding path program 1 times [2022-01-11 07:10:19,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:19,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783177653] [2022-01-11 07:10:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:19,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:19,396 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 07:10:19,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:19,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783177653] [2022-01-11 07:10:19,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783177653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:19,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:19,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:19,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8495518] [2022-01-11 07:10:19,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:19,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:19,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:19,398 INFO L87 Difference]: Start difference. First operand 3104 states and 5342 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:19,558 INFO L93 Difference]: Finished difference Result 4066 states and 6697 transitions. [2022-01-11 07:10:19,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:19,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:19,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:19,574 INFO L225 Difference]: With dead ends: 4066 [2022-01-11 07:10:19,574 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:19,575 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 07:10:19,576 INFO L933 BasicCegarLoop]: 4711 mSDtfsCounter, 4643 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:19,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4643 Valid, 4767 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7155756207674944) internal successors, (5320), 3103 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5320 transitions. [2022-01-11 07:10:19,649 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5320 transitions. Word has length 88 [2022-01-11 07:10:19,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:19,649 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5320 transitions. [2022-01-11 07:10:19,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5320 transitions. [2022-01-11 07:10:19,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:19,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:19,652 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] [2022-01-11 07:10:19,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 07:10:19,653 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:19,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash 138930227, now seen corresponding path program 1 times [2022-01-11 07:10:19,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:19,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374979489] [2022-01-11 07:10:19,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:19,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:19,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:19,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374979489] [2022-01-11 07:10:19,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374979489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:19,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:19,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:19,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160511527] [2022-01-11 07:10:19,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:19,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:19,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:19,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:19,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:19,684 INFO L87 Difference]: Start difference. First operand 3104 states and 5320 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:19,774 INFO L93 Difference]: Finished difference Result 4065 states and 6652 transitions. [2022-01-11 07:10:19,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:19,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:19,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:19,781 INFO L225 Difference]: With dead ends: 4065 [2022-01-11 07:10:19,781 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:19,782 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 07:10:19,783 INFO L933 BasicCegarLoop]: 4698 mSDtfsCounter, 4630 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:19,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4630 Valid, 4753 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:19,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.708481135117704) internal successors, (5298), 3103 states have internal predecessors, (5298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5298 transitions. [2022-01-11 07:10:19,854 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5298 transitions. Word has length 88 [2022-01-11 07:10:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:19,854 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5298 transitions. [2022-01-11 07:10:19,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5298 transitions. [2022-01-11 07:10:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:19,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:19,856 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] [2022-01-11 07:10:19,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 07:10:19,856 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:19,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1321696978, now seen corresponding path program 1 times [2022-01-11 07:10:19,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:19,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595275519] [2022-01-11 07:10:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:19,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 07:10:19,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595275519] [2022-01-11 07:10:19,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595275519] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:19,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:19,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:19,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33086573] [2022-01-11 07:10:19,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:19,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:19,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:19,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:19,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:19,888 INFO L87 Difference]: Start difference. First operand 3104 states and 5298 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:19,982 INFO L93 Difference]: Finished difference Result 4064 states and 6607 transitions. [2022-01-11 07:10:19,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:19,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:19,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:19,989 INFO L225 Difference]: With dead ends: 4064 [2022-01-11 07:10:19,989 INFO L226 Difference]: Without dead ends: 3104 [2022-01-11 07:10:19,991 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 07:10:19,992 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4617 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4617 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:19,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4617 Valid, 4739 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:19,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-11 07:10:20,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-11 07:10:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3101 states have (on average 1.7013866494679135) internal successors, (5276), 3103 states have internal predecessors, (5276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5276 transitions. [2022-01-11 07:10:20,071 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5276 transitions. Word has length 88 [2022-01-11 07:10:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:20,071 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5276 transitions. [2022-01-11 07:10:20,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5276 transitions. [2022-01-11 07:10:20,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-11 07:10:20,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:20,073 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] [2022-01-11 07:10:20,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 07:10:20,073 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:20,074 INFO L85 PathProgramCache]: Analyzing trace with hash 717173394, now seen corresponding path program 1 times [2022-01-11 07:10:20,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:20,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335406544] [2022-01-11 07:10:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:20,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:20,102 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 07:10:20,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:20,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335406544] [2022-01-11 07:10:20,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335406544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:20,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:20,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:20,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669976762] [2022-01-11 07:10:20,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:20,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:20,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:20,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:20,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:20,104 INFO L87 Difference]: Start difference. First operand 3104 states and 5276 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:20,235 INFO L93 Difference]: Finished difference Result 4930 states and 7715 transitions. [2022-01-11 07:10:20,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:20,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-11 07:10:20,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:20,243 INFO L225 Difference]: With dead ends: 4930 [2022-01-11 07:10:20,243 INFO L226 Difference]: Without dead ends: 3972 [2022-01-11 07:10:20,245 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 07:10:20,245 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 4627 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4627 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:20,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4627 Valid, 5304 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-01-11 07:10:20,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 3890. [2022-01-11 07:10:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3890 states, 3887 states have (on average 1.622330846411114) internal successors, (6306), 3889 states have internal predecessors, (6306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 6306 transitions. [2022-01-11 07:10:20,364 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 6306 transitions. Word has length 88 [2022-01-11 07:10:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:20,365 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 6306 transitions. [2022-01-11 07:10:20,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 6306 transitions. [2022-01-11 07:10:20,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 07:10:20,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:20,368 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] [2022-01-11 07:10:20,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 07:10:20,368 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:20,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:20,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1891710493, now seen corresponding path program 1 times [2022-01-11 07:10:20,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:20,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343554245] [2022-01-11 07:10:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:20,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:20,439 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 07:10:20,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:20,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343554245] [2022-01-11 07:10:20,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343554245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:20,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:20,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 07:10:20,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715388080] [2022-01-11 07:10:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:20,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 07:10:20,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:20,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 07:10:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 07:10:20,441 INFO L87 Difference]: Start difference. First operand 3890 states and 6306 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:20,757 INFO L93 Difference]: Finished difference Result 6181 states and 9392 transitions. [2022-01-11 07:10:20,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 07:10:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 07:10:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:20,769 INFO L225 Difference]: With dead ends: 6181 [2022-01-11 07:10:20,769 INFO L226 Difference]: Without dead ends: 4448 [2022-01-11 07:10:20,773 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 07:10:20,774 INFO L933 BasicCegarLoop]: 4796 mSDtfsCounter, 1922 mSDsluCounter, 13102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 17898 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:20,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1922 Valid, 17898 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 07:10:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2022-01-11 07:10:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 3896. [2022-01-11 07:10:20,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3893 states have (on average 1.6144361674800924) internal successors, (6285), 3895 states have internal predecessors, (6285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6285 transitions. [2022-01-11 07:10:20,950 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6285 transitions. Word has length 142 [2022-01-11 07:10:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:20,952 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6285 transitions. [2022-01-11 07:10:20,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6285 transitions. [2022-01-11 07:10:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 07:10:20,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:20,954 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] [2022-01-11 07:10:20,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 07:10:20,955 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash -815157084, now seen corresponding path program 1 times [2022-01-11 07:10:20,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:20,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123958175] [2022-01-11 07:10:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:20,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:21,023 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 07:10:21,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:21,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123958175] [2022-01-11 07:10:21,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123958175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:21,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:21,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 07:10:21,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242572855] [2022-01-11 07:10:21,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:21,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:21,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:21,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:21,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:21,025 INFO L87 Difference]: Start difference. First operand 3896 states and 6285 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:21,167 INFO L93 Difference]: Finished difference Result 5653 states and 8587 transitions. [2022-01-11 07:10:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 07:10:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:21,175 INFO L225 Difference]: With dead ends: 5653 [2022-01-11 07:10:21,175 INFO L226 Difference]: Without dead ends: 3896 [2022-01-11 07:10:21,178 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 07:10:21,179 INFO L933 BasicCegarLoop]: 4663 mSDtfsCounter, 4552 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4552 SdHoareTripleChecker+Valid, 4715 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:21,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4552 Valid, 4715 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-01-11 07:10:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2022-01-11 07:10:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3893 states have (on average 1.6075006421782687) internal successors, (6258), 3895 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6258 transitions. [2022-01-11 07:10:21,311 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6258 transitions. Word has length 142 [2022-01-11 07:10:21,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:21,312 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6258 transitions. [2022-01-11 07:10:21,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6258 transitions. [2022-01-11 07:10:21,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 07:10:21,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:21,315 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] [2022-01-11 07:10:21,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 07:10:21,315 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:21,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash 51895141, now seen corresponding path program 1 times [2022-01-11 07:10:21,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:21,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680623425] [2022-01-11 07:10:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:21,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:21,376 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 07:10:21,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680623425] [2022-01-11 07:10:21,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680623425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:21,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:21,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:21,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047627387] [2022-01-11 07:10:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:21,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:21,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:21,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:21,378 INFO L87 Difference]: Start difference. First operand 3896 states and 6258 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:21,621 INFO L93 Difference]: Finished difference Result 7264 states and 10638 transitions. [2022-01-11 07:10:21,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:21,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-01-11 07:10:21,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:21,635 INFO L225 Difference]: With dead ends: 7264 [2022-01-11 07:10:21,635 INFO L226 Difference]: Without dead ends: 5520 [2022-01-11 07:10:21,642 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 07:10:21,644 INFO L933 BasicCegarLoop]: 4662 mSDtfsCounter, 4578 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:21,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4578 Valid, 5264 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-01-11 07:10:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5372. [2022-01-11 07:10:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 5369 states have (on average 1.5209536226485378) internal successors, (8166), 5371 states have internal predecessors, (8166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8166 transitions. [2022-01-11 07:10:21,945 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8166 transitions. Word has length 142 [2022-01-11 07:10:21,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:21,946 INFO L470 AbstractCegarLoop]: Abstraction has 5372 states and 8166 transitions. [2022-01-11 07:10:21,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:21,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8166 transitions. [2022-01-11 07:10:21,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 07:10:21,950 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:21,950 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] [2022-01-11 07:10:21,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 07:10:21,951 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:21,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash 282557349, now seen corresponding path program 1 times [2022-01-11 07:10:21,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:21,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002807535] [2022-01-11 07:10:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:21,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:22,019 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 07:10:22,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:22,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002807535] [2022-01-11 07:10:22,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002807535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:22,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:22,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:22,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611060943] [2022-01-11 07:10:22,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:22,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:22,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:22,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:22,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:22,023 INFO L87 Difference]: Start difference. First operand 5372 states and 8166 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:22,456 INFO L93 Difference]: Finished difference Result 11485 states and 16014 transitions. [2022-01-11 07:10:22,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:22,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-01-11 07:10:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:22,474 INFO L225 Difference]: With dead ends: 11485 [2022-01-11 07:10:22,474 INFO L226 Difference]: Without dead ends: 8311 [2022-01-11 07:10:22,480 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 07:10:22,480 INFO L933 BasicCegarLoop]: 4968 mSDtfsCounter, 4459 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 5663 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 07:10:22,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4459 Valid, 5663 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:22,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2022-01-11 07:10:22,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 8307. [2022-01-11 07:10:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8307 states, 8304 states have (on average 1.428709055876686) internal successors, (11864), 8306 states have internal predecessors, (11864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 11864 transitions. [2022-01-11 07:10:22,831 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 11864 transitions. Word has length 142 [2022-01-11 07:10:22,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:22,831 INFO L470 AbstractCegarLoop]: Abstraction has 8307 states and 11864 transitions. [2022-01-11 07:10:22,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 11864 transitions. [2022-01-11 07:10:22,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-11 07:10:22,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:22,837 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] [2022-01-11 07:10:22,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 07:10:22,837 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1655981948, now seen corresponding path program 1 times [2022-01-11 07:10:22,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:22,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832522247] [2022-01-11 07:10:22,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:22,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:22,865 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 07:10:22,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:22,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832522247] [2022-01-11 07:10:22,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832522247] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:22,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:22,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:22,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066221376] [2022-01-11 07:10:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:22,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:22,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:22,867 INFO L87 Difference]: Start difference. First operand 8307 states and 11864 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:23,204 INFO L93 Difference]: Finished difference Result 14345 states and 19594 transitions. [2022-01-11 07:10:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 142 [2022-01-11 07:10:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:23,225 INFO L225 Difference]: With dead ends: 14345 [2022-01-11 07:10:23,226 INFO L226 Difference]: Without dead ends: 8236 [2022-01-11 07:10:23,237 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 07:10:23,237 INFO L933 BasicCegarLoop]: 4671 mSDtfsCounter, 709 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 8629 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 07:10:23,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [709 Valid, 8629 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-01-11 07:10:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 8236. [2022-01-11 07:10:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 8233 states have (on average 1.4307056965869063) internal successors, (11779), 8235 states have internal predecessors, (11779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11779 transitions. [2022-01-11 07:10:23,590 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11779 transitions. Word has length 142 [2022-01-11 07:10:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:23,590 INFO L470 AbstractCegarLoop]: Abstraction has 8236 states and 11779 transitions. [2022-01-11 07:10:23,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11779 transitions. [2022-01-11 07:10:23,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-11 07:10:23,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:23,595 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] [2022-01-11 07:10:23,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 07:10:23,596 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:23,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:23,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1765629220, now seen corresponding path program 1 times [2022-01-11 07:10:23,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:23,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340923533] [2022-01-11 07:10:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:23,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:23,664 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 07:10:23,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:23,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340923533] [2022-01-11 07:10:23,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340923533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:23,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:23,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:23,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639278753] [2022-01-11 07:10:23,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:23,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:23,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:23,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:23,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:23,665 INFO L87 Difference]: Start difference. First operand 8236 states and 11779 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:24,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:24,335 INFO L93 Difference]: Finished difference Result 19926 states and 26681 transitions. [2022-01-11 07:10:24,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:24,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-01-11 07:10:24,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:24,366 INFO L225 Difference]: With dead ends: 19926 [2022-01-11 07:10:24,366 INFO L226 Difference]: Without dead ends: 13888 [2022-01-11 07:10:24,376 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 07:10:24,377 INFO L933 BasicCegarLoop]: 4840 mSDtfsCounter, 4582 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 5525 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:24,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4582 Valid, 5525 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-01-11 07:10:24,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13484. [2022-01-11 07:10:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13484 states, 13481 states have (on average 1.364661375268897) internal successors, (18397), 13483 states have internal predecessors, (18397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13484 states to 13484 states and 18397 transitions. [2022-01-11 07:10:25,006 INFO L78 Accepts]: Start accepts. Automaton has 13484 states and 18397 transitions. Word has length 143 [2022-01-11 07:10:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:25,006 INFO L470 AbstractCegarLoop]: Abstraction has 13484 states and 18397 transitions. [2022-01-11 07:10:25,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 13484 states and 18397 transitions. [2022-01-11 07:10:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-11 07:10:25,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:25,015 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] [2022-01-11 07:10:25,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 07:10:25,015 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:25,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:25,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1119024441, now seen corresponding path program 1 times [2022-01-11 07:10:25,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:25,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031794545] [2022-01-11 07:10:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:25,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:25,047 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 07:10:25,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:25,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031794545] [2022-01-11 07:10:25,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031794545] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:25,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:25,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:25,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271310249] [2022-01-11 07:10:25,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:25,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:25,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:25,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:25,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:25,050 INFO L87 Difference]: Start difference. First operand 13484 states and 18397 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:25,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:25,624 INFO L93 Difference]: Finished difference Result 24735 states and 32704 transitions. [2022-01-11 07:10:25,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:25,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 143 [2022-01-11 07:10:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:25,655 INFO L225 Difference]: With dead ends: 24735 [2022-01-11 07:10:25,655 INFO L226 Difference]: Without dead ends: 13414 [2022-01-11 07:10:25,675 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 07:10:25,675 INFO L933 BasicCegarLoop]: 4670 mSDtfsCounter, 707 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 8628 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 07:10:25,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [707 Valid, 8628 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13414 states. [2022-01-11 07:10:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13414 to 13414. [2022-01-11 07:10:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13414 states, 13411 states have (on average 1.3655954067556484) internal successors, (18314), 13413 states have internal predecessors, (18314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:26,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 18314 transitions. [2022-01-11 07:10:26,230 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 18314 transitions. Word has length 143 [2022-01-11 07:10:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:26,230 INFO L470 AbstractCegarLoop]: Abstraction has 13414 states and 18314 transitions. [2022-01-11 07:10:26,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:26,230 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 18314 transitions. [2022-01-11 07:10:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-11 07:10:26,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:26,236 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] [2022-01-11 07:10:26,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 07:10:26,237 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:26,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1474324216, now seen corresponding path program 1 times [2022-01-11 07:10:26,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:26,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072425705] [2022-01-11 07:10:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:26,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:26,280 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 07:10:26,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:26,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072425705] [2022-01-11 07:10:26,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072425705] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:26,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:26,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:26,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053513418] [2022-01-11 07:10:26,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:26,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:26,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:26,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:26,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:26,282 INFO L87 Difference]: Start difference. First operand 13414 states and 18314 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:27,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:27,185 INFO L93 Difference]: Finished difference Result 34875 states and 45550 transitions. [2022-01-11 07:10:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:27,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-01-11 07:10:27,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:27,235 INFO L225 Difference]: With dead ends: 34875 [2022-01-11 07:10:27,235 INFO L226 Difference]: Without dead ends: 23659 [2022-01-11 07:10:27,254 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 07:10:27,255 INFO L933 BasicCegarLoop]: 4832 mSDtfsCounter, 4582 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4582 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:27,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4582 Valid, 5515 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:27,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23659 states. [2022-01-11 07:10:28,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23659 to 23079. [2022-01-11 07:10:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23079 states, 23076 states have (on average 1.3212861847807245) internal successors, (30490), 23078 states have internal predecessors, (30490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23079 states to 23079 states and 30490 transitions. [2022-01-11 07:10:28,177 INFO L78 Accepts]: Start accepts. Automaton has 23079 states and 30490 transitions. Word has length 144 [2022-01-11 07:10:28,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:28,178 INFO L470 AbstractCegarLoop]: Abstraction has 23079 states and 30490 transitions. [2022-01-11 07:10:28,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:28,178 INFO L276 IsEmpty]: Start isEmpty. Operand 23079 states and 30490 transitions. [2022-01-11 07:10:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-11 07:10:28,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:28,188 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] [2022-01-11 07:10:28,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 07:10:28,188 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2061801369, now seen corresponding path program 1 times [2022-01-11 07:10:28,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:28,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982949509] [2022-01-11 07:10:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:28,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:28,218 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 07:10:28,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:28,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982949509] [2022-01-11 07:10:28,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982949509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:28,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:28,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:28,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378161476] [2022-01-11 07:10:28,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:28,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:28,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:28,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:28,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:28,220 INFO L87 Difference]: Start difference. First operand 23079 states and 30490 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:29,213 INFO L93 Difference]: Finished difference Result 43919 states and 56884 transitions. [2022-01-11 07:10:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:29,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 144 [2022-01-11 07:10:29,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:29,262 INFO L225 Difference]: With dead ends: 43919 [2022-01-11 07:10:29,262 INFO L226 Difference]: Without dead ends: 23010 [2022-01-11 07:10:29,297 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 07:10:29,297 INFO L933 BasicCegarLoop]: 4669 mSDtfsCounter, 705 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 8627 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 07:10:29,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [705 Valid, 8627 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23010 states. [2022-01-11 07:10:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23010 to 23010. [2022-01-11 07:10:30,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23010 states, 23007 states have (on average 1.3217281696874865) internal successors, (30409), 23009 states have internal predecessors, (30409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23010 states to 23010 states and 30409 transitions. [2022-01-11 07:10:30,305 INFO L78 Accepts]: Start accepts. Automaton has 23010 states and 30409 transitions. Word has length 144 [2022-01-11 07:10:30,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:30,305 INFO L470 AbstractCegarLoop]: Abstraction has 23010 states and 30409 transitions. [2022-01-11 07:10:30,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 23010 states and 30409 transitions. [2022-01-11 07:10:30,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-11 07:10:30,312 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:30,313 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] [2022-01-11 07:10:30,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 07:10:30,313 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash -464981875, now seen corresponding path program 1 times [2022-01-11 07:10:30,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:30,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078160500] [2022-01-11 07:10:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:30,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:30,361 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 07:10:30,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:30,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078160500] [2022-01-11 07:10:30,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078160500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:30,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:30,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:30,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693360838] [2022-01-11 07:10:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:30,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:30,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:30,363 INFO L87 Difference]: Start difference. First operand 23010 states and 30409 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:31,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:31,905 INFO L93 Difference]: Finished difference Result 62246 states and 80027 transitions. [2022-01-11 07:10:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:31,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-01-11 07:10:31,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:31,971 INFO L225 Difference]: With dead ends: 62246 [2022-01-11 07:10:31,971 INFO L226 Difference]: Without dead ends: 41434 [2022-01-11 07:10:32,006 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 07:10:32,007 INFO L933 BasicCegarLoop]: 4806 mSDtfsCounter, 4520 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4520 SdHoareTripleChecker+Valid, 5487 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:32,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4520 Valid, 5487 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41434 states. [2022-01-11 07:10:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41434 to 40726. [2022-01-11 07:10:33,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40726 states, 40723 states have (on average 1.2935933010829261) internal successors, (52679), 40725 states have internal predecessors, (52679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40726 states to 40726 states and 52679 transitions. [2022-01-11 07:10:33,971 INFO L78 Accepts]: Start accepts. Automaton has 40726 states and 52679 transitions. Word has length 145 [2022-01-11 07:10:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:33,971 INFO L470 AbstractCegarLoop]: Abstraction has 40726 states and 52679 transitions. [2022-01-11 07:10:33,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 40726 states and 52679 transitions. [2022-01-11 07:10:33,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-11 07:10:33,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:33,981 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] [2022-01-11 07:10:33,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 07:10:33,982 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:33,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:33,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1877195979, now seen corresponding path program 1 times [2022-01-11 07:10:33,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:33,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258070033] [2022-01-11 07:10:33,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:33,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:34,010 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 07:10:34,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:34,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258070033] [2022-01-11 07:10:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258070033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:34,011 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:34,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:34,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233620653] [2022-01-11 07:10:34,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:34,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:34,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:34,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:34,012 INFO L87 Difference]: Start difference. First operand 40726 states and 52679 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:35,886 INFO L93 Difference]: Finished difference Result 79207 states and 101256 transitions. [2022-01-11 07:10:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:35,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 145 [2022-01-11 07:10:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:35,942 INFO L225 Difference]: With dead ends: 79207 [2022-01-11 07:10:35,942 INFO L226 Difference]: Without dead ends: 40658 [2022-01-11 07:10:35,979 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 07:10:35,980 INFO L933 BasicCegarLoop]: 4668 mSDtfsCounter, 703 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 8626 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 07:10:35,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 8626 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:36,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40658 states. [2022-01-11 07:10:37,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40658 to 40658. [2022-01-11 07:10:37,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40658 states, 40655 states have (on average 1.2938137990407084) internal successors, (52600), 40657 states have internal predecessors, (52600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40658 states to 40658 states and 52600 transitions. [2022-01-11 07:10:37,766 INFO L78 Accepts]: Start accepts. Automaton has 40658 states and 52600 transitions. Word has length 145 [2022-01-11 07:10:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:37,766 INFO L470 AbstractCegarLoop]: Abstraction has 40658 states and 52600 transitions. [2022-01-11 07:10:37,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 40658 states and 52600 transitions. [2022-01-11 07:10:37,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-11 07:10:37,776 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:37,776 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] [2022-01-11 07:10:37,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 07:10:37,777 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:37,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:37,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1989266078, now seen corresponding path program 1 times [2022-01-11 07:10:37,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:37,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248777612] [2022-01-11 07:10:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:37,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:37,820 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 07:10:37,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:37,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248777612] [2022-01-11 07:10:37,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248777612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:37,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:37,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:37,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124066328] [2022-01-11 07:10:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:37,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:37,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:37,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:37,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:37,824 INFO L87 Difference]: Start difference. First operand 40658 states and 52600 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:41,138 INFO L93 Difference]: Finished difference Result 111885 states and 142296 transitions. [2022-01-11 07:10:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:41,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-01-11 07:10:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:41,247 INFO L225 Difference]: With dead ends: 111885 [2022-01-11 07:10:41,247 INFO L226 Difference]: Without dead ends: 73425 [2022-01-11 07:10:41,278 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 07:10:41,278 INFO L933 BasicCegarLoop]: 4761 mSDtfsCounter, 4581 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4581 SdHoareTripleChecker+Valid, 5440 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 07:10:41,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4581 Valid, 5440 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73425 states. [2022-01-11 07:10:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73425 to 72909. [2022-01-11 07:10:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72909 states, 72906 states have (on average 1.2766576139138068) internal successors, (93076), 72908 states have internal predecessors, (93076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72909 states to 72909 states and 93076 transitions. [2022-01-11 07:10:44,913 INFO L78 Accepts]: Start accepts. Automaton has 72909 states and 93076 transitions. Word has length 146 [2022-01-11 07:10:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:44,914 INFO L470 AbstractCegarLoop]: Abstraction has 72909 states and 93076 transitions. [2022-01-11 07:10:44,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 72909 states and 93076 transitions. [2022-01-11 07:10:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-11 07:10:44,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:44,935 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] [2022-01-11 07:10:44,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 07:10:44,935 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:44,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:44,936 INFO L85 PathProgramCache]: Analyzing trace with hash 144298115, now seen corresponding path program 1 times [2022-01-11 07:10:44,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:44,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185391693] [2022-01-11 07:10:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:44,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:44,966 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 07:10:44,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:44,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185391693] [2022-01-11 07:10:44,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185391693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:44,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:44,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:44,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632548975] [2022-01-11 07:10:44,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:44,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:44,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:44,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:44,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:44,968 INFO L87 Difference]: Start difference. First operand 72909 states and 93076 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 07:10:48,684 INFO L93 Difference]: Finished difference Result 143567 states and 182044 transitions. [2022-01-11 07:10:48,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 07:10:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 146 [2022-01-11 07:10:48,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 07:10:48,796 INFO L225 Difference]: With dead ends: 143567 [2022-01-11 07:10:48,796 INFO L226 Difference]: Without dead ends: 72842 [2022-01-11 07:10:48,851 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 07:10:48,851 INFO L933 BasicCegarLoop]: 4667 mSDtfsCounter, 701 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 8625 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 07:10:48,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 8625 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 07:10:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72842 states. [2022-01-11 07:10:52,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72842 to 72842. [2022-01-11 07:10:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72842 states, 72839 states have (on average 1.27677480470627) internal successors, (92999), 72841 states have internal predecessors, (92999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72842 states to 72842 states and 92999 transitions. [2022-01-11 07:10:52,737 INFO L78 Accepts]: Start accepts. Automaton has 72842 states and 92999 transitions. Word has length 146 [2022-01-11 07:10:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 07:10:52,737 INFO L470 AbstractCegarLoop]: Abstraction has 72842 states and 92999 transitions. [2022-01-11 07:10:52,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 07:10:52,738 INFO L276 IsEmpty]: Start isEmpty. Operand 72842 states and 92999 transitions. [2022-01-11 07:10:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-11 07:10:52,758 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 07:10:52,758 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] [2022-01-11 07:10:52,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 07:10:52,758 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 07:10:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 07:10:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash -33986521, now seen corresponding path program 1 times [2022-01-11 07:10:52,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 07:10:52,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179389693] [2022-01-11 07:10:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 07:10:52,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 07:10:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 07:10:52,846 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 07:10:52,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 07:10:52,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179389693] [2022-01-11 07:10:52,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179389693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 07:10:52,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 07:10:52,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 07:10:52,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009179887] [2022-01-11 07:10:52,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 07:10:52,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 07:10:52,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 07:10:52,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 07:10:52,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 07:10:52,848 INFO L87 Difference]: Start difference. First operand 72842 states and 92999 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)