/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_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:35:04,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:35:04,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:35:04,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:35:04,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:35:04,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:35:04,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:35:04,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:35:04,148 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:35:04,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:35:04,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:35:04,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:35:04,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:35:04,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:35:04,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:35:04,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:35:04,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:35:04,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:35:04,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:35:04,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:35:04,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:35:04,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:35:04,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:35:04,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:35:04,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:35:04,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:35:04,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:35:04,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:35:04,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:35:04,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:35:04,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:35:04,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:35:04,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:35:04,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:35:04,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:35:04,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:35:04,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:35:04,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:35:04,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:35:04,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:35:04,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:35:04,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:35:04,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:35:04,207 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:35:04,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:35:04,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:35:04,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:35:04,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:35:04,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:35:04,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:35:04,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:35:04,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:35:04,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:35:04,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:35:04,211 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:35:04,211 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:35:04,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:35:04,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:35:04,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:35:04,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:35:04,422 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:35:04,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.05.cil-2.c [2022-01-10 13:35:04,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7fea9b0/539bb5f24fcf41e6a1b561a3912363bc/FLAG6208ac5d2 [2022-01-10 13:35:05,151 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:35:05,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.05.cil-2.c [2022-01-10 13:35:05,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7fea9b0/539bb5f24fcf41e6a1b561a3912363bc/FLAG6208ac5d2 [2022-01-10 13:35:05,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7fea9b0/539bb5f24fcf41e6a1b561a3912363bc [2022-01-10 13:35:05,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:35:05,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:35:05,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:35:05,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:35:05,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:35:05,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:05" (1/1) ... [2022-01-10 13:35:05,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176181ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:05, skipping insertion in model container [2022-01-10 13:35:05,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:35:05" (1/1) ... [2022-01-10 13:35:05,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:35:05,697 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:35:06,960 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_label42+token_ring.05.cil-2.c[378560,378573] [2022-01-10 13:35:06,999 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_label42+token_ring.05.cil-2.c[383339,383352] [2022-01-10 13:35:07,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:35:07,166 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:35:07,855 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_label42+token_ring.05.cil-2.c[378560,378573] [2022-01-10 13:35:07,860 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_label42+token_ring.05.cil-2.c[383339,383352] [2022-01-10 13:35:07,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:35:07,996 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:35:07,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07 WrapperNode [2022-01-10 13:35:07,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:35:07,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:35:07,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:35:07,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:35:08,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,311 INFO L137 Inliner]: procedures = 55, calls = 57, calls flagged for inlining = 52, calls inlined = 105, statements flattened = 13688 [2022-01-10 13:35:08,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:35:08,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:35:08,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:35:08,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:35:08,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:35:08,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:35:08,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:35:08,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:35:08,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (1/1) ... [2022-01-10 13:35:08,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:35:08,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:35:08,905 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) [2022-01-10 13:35:08,909 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 [2022-01-10 13:35:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:35:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:35:08,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:35:08,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:35:09,092 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:35:09,093 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:35:15,753 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:35:15,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:35:15,778 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-01-10 13:35:15,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:15 BoogieIcfgContainer [2022-01-10 13:35:15,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:35:15,782 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:35:15,782 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:35:15,783 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:35:15,785 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:15" (1/1) ... [2022-01-10 13:35:17,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:35:17 BasicIcfg [2022-01-10 13:35:17,012 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:35:17,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:35:17,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:35:17,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:35:17,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:35:05" (1/4) ... [2022-01-10 13:35:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f30bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:17, skipping insertion in model container [2022-01-10 13:35:17,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:35:07" (2/4) ... [2022-01-10 13:35:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f30bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:35:17, skipping insertion in model container [2022-01-10 13:35:17,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:35:15" (3/4) ... [2022-01-10 13:35:17,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f30bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:35:17, skipping insertion in model container [2022-01-10 13:35:17,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:35:17" (4/4) ... [2022-01-10 13:35:17,017 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.05.cil-2.cTransformedIcfg [2022-01-10 13:35:17,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:35:17,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:35:17,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:35:17,079 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 [2022-01-10 13:35:17,079 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:35:17,120 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) [2022-01-10 13:35:17,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:17,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:17,131 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] [2022-01-10 13:35:17,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:17,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash 2068063412, now seen corresponding path program 1 times [2022-01-10 13:35:17,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:17,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025325996] [2022-01-10 13:35:17,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:17,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:17,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:17,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025325996] [2022-01-10 13:35:17,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025325996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:17,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:17,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:17,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930066529] [2022-01-10 13:35:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:17,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:17,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:17,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:17,420 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) [2022-01-10 13:35:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:17,681 INFO L93 Difference]: Finished difference Result 5910 states and 10522 transitions. [2022-01-10 13:35:17,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:17,683 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 [2022-01-10 13:35:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:17,728 INFO L225 Difference]: With dead ends: 5910 [2022-01-10 13:35:17,728 INFO L226 Difference]: Without dead ends: 3108 [2022-01-10 13:35:17,737 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 [2022-01-10 13:35:17,739 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:17,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4777 Valid, 5554 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:35:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2022-01-10 13:35:17,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 3104. [2022-01-10 13:35:17,873 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) [2022-01-10 13:35:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5426 transitions. [2022-01-10 13:35:17,883 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5426 transitions. Word has length 88 [2022-01-10 13:35:17,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:17,884 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5426 transitions. [2022-01-10 13:35:17,884 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) [2022-01-10 13:35:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5426 transitions. [2022-01-10 13:35:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:17,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:17,893 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] [2022-01-10 13:35:17,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:35:17,893 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:17,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:17,895 INFO L85 PathProgramCache]: Analyzing trace with hash -156474668, now seen corresponding path program 1 times [2022-01-10 13:35:17,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:17,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668618327] [2022-01-10 13:35:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:17,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:17,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:17,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:17,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668618327] [2022-01-10 13:35:17,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668618327] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:17,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:17,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:17,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825121918] [2022-01-10 13:35:17,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:17,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:17,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:17,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:17,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:17,999 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) [2022-01-10 13:35:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,059 INFO L93 Difference]: Finished difference Result 4074 states and 6874 transitions. [2022-01-10 13:35:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,060 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 [2022-01-10 13:35:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,069 INFO L225 Difference]: With dead ends: 4074 [2022-01-10 13:35:18,070 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:18,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,073 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 [2022-01-10 13:35:18,074 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] [2022-01-10 13:35:18,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:18,266 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) [2022-01-10 13:35:18,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5418 transitions. [2022-01-10 13:35:18,274 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5418 transitions. Word has length 88 [2022-01-10 13:35:18,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:18,275 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5418 transitions. [2022-01-10 13:35:18,275 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) [2022-01-10 13:35:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5418 transitions. [2022-01-10 13:35:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:18,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:18,280 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] [2022-01-10 13:35:18,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:35:18,285 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:18,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash 741597364, now seen corresponding path program 1 times [2022-01-10 13:35:18,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:18,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063999999] [2022-01-10 13:35:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:18,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:18,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:18,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063999999] [2022-01-10 13:35:18,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063999999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:18,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:18,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:18,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753692931] [2022-01-10 13:35:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:18,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:18,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:18,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:18,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,361 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) [2022-01-10 13:35:18,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,422 INFO L93 Difference]: Finished difference Result 4073 states and 6857 transitions. [2022-01-10 13:35:18,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,422 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 [2022-01-10 13:35:18,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,431 INFO L225 Difference]: With dead ends: 4073 [2022-01-10 13:35:18,431 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:18,435 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 [2022-01-10 13:35:18,438 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 [2022-01-10 13:35:18,438 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] [2022-01-10 13:35:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:18,481 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) [2022-01-10 13:35:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5410 transitions. [2022-01-10 13:35:18,487 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5410 transitions. Word has length 88 [2022-01-10 13:35:18,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:18,489 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5410 transitions. [2022-01-10 13:35:18,489 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) [2022-01-10 13:35:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5410 transitions. [2022-01-10 13:35:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:18,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:18,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:35:18,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:35:18,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:18,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:18,491 INFO L85 PathProgramCache]: Analyzing trace with hash -892000556, now seen corresponding path program 1 times [2022-01-10 13:35:18,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:18,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100632557] [2022-01-10 13:35:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:18,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:18,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:18,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:18,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100632557] [2022-01-10 13:35:18,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100632557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:18,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:18,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:18,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946638687] [2022-01-10 13:35:18,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:18,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:18,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:18,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:18,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,541 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) [2022-01-10 13:35:18,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,596 INFO L93 Difference]: Finished difference Result 4072 states and 6840 transitions. [2022-01-10 13:35:18,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,597 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 [2022-01-10 13:35:18,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,605 INFO L225 Difference]: With dead ends: 4072 [2022-01-10 13:35:18,606 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:18,609 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 [2022-01-10 13:35:18,614 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 [2022-01-10 13:35:18,615 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] [2022-01-10 13:35:18,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:18,670 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) [2022-01-10 13:35:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5402 transitions. [2022-01-10 13:35:18,677 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5402 transitions. Word has length 88 [2022-01-10 13:35:18,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:18,677 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5402 transitions. [2022-01-10 13:35:18,678 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) [2022-01-10 13:35:18,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5402 transitions. [2022-01-10 13:35:18,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:18,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:18,678 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] [2022-01-10 13:35:18,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:35:18,679 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:18,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1914528588, now seen corresponding path program 1 times [2022-01-10 13:35:18,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:18,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450860363] [2022-01-10 13:35:18,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:18,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:18,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:18,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450860363] [2022-01-10 13:35:18,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450860363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:18,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:18,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:18,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382238894] [2022-01-10 13:35:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:18,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:18,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:18,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,734 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) [2022-01-10 13:35:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,794 INFO L93 Difference]: Finished difference Result 4071 states and 6823 transitions. [2022-01-10 13:35:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,794 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 [2022-01-10 13:35:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,804 INFO L225 Difference]: With dead ends: 4071 [2022-01-10 13:35:18,804 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:18,806 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 [2022-01-10 13:35:18,807 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 [2022-01-10 13:35:18,807 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] [2022-01-10 13:35:18,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:18,861 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) [2022-01-10 13:35:18,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5394 transitions. [2022-01-10 13:35:18,870 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5394 transitions. Word has length 88 [2022-01-10 13:35:18,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:18,872 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5394 transitions. [2022-01-10 13:35:18,873 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) [2022-01-10 13:35:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5394 transitions. [2022-01-10 13:35:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:18,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:18,874 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] [2022-01-10 13:35:18,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:35:18,875 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1516169940, now seen corresponding path program 1 times [2022-01-10 13:35:18,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:18,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765260709] [2022-01-10 13:35:18,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:18,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:18,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:18,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765260709] [2022-01-10 13:35:18,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765260709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:18,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:18,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:18,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432569219] [2022-01-10 13:35:18,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:18,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:18,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:18,917 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) [2022-01-10 13:35:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:18,973 INFO L93 Difference]: Finished difference Result 4070 states and 6806 transitions. [2022-01-10 13:35:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:18,973 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 [2022-01-10 13:35:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:18,982 INFO L225 Difference]: With dead ends: 4070 [2022-01-10 13:35:18,982 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:18,983 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 [2022-01-10 13:35:18,984 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 [2022-01-10 13:35:18,985 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] [2022-01-10 13:35:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:19,044 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) [2022-01-10 13:35:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5386 transitions. [2022-01-10 13:35:19,051 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5386 transitions. Word has length 88 [2022-01-10 13:35:19,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:19,051 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5386 transitions. [2022-01-10 13:35:19,052 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) [2022-01-10 13:35:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5386 transitions. [2022-01-10 13:35:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:19,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:19,053 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] [2022-01-10 13:35:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:35:19,053 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1005561676, now seen corresponding path program 1 times [2022-01-10 13:35:19,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:19,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855684149] [2022-01-10 13:35:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:19,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:19,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:19,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:19,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855684149] [2022-01-10 13:35:19,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855684149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:19,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:19,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:19,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088983411] [2022-01-10 13:35:19,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:19,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:19,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:19,086 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) [2022-01-10 13:35:19,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:19,152 INFO L93 Difference]: Finished difference Result 4068 states and 6787 transitions. [2022-01-10 13:35:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:19,153 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 [2022-01-10 13:35:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:19,163 INFO L225 Difference]: With dead ends: 4068 [2022-01-10 13:35:19,163 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:19,165 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 [2022-01-10 13:35:19,166 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 [2022-01-10 13:35:19,166 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] [2022-01-10 13:35:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:19,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:19,223 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) [2022-01-10 13:35:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5364 transitions. [2022-01-10 13:35:19,230 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5364 transitions. Word has length 88 [2022-01-10 13:35:19,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:19,231 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5364 transitions. [2022-01-10 13:35:19,231 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) [2022-01-10 13:35:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5364 transitions. [2022-01-10 13:35:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:19,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:19,232 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] [2022-01-10 13:35:19,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:35:19,232 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:19,233 INFO L85 PathProgramCache]: Analyzing trace with hash -580741388, now seen corresponding path program 1 times [2022-01-10 13:35:19,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:19,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904371514] [2022-01-10 13:35:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:19,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:19,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:19,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904371514] [2022-01-10 13:35:19,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904371514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:19,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:19,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:19,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808934417] [2022-01-10 13:35:19,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:19,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:19,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:19,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:19,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:19,359 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) [2022-01-10 13:35:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:19,506 INFO L93 Difference]: Finished difference Result 4067 states and 6742 transitions. [2022-01-10 13:35:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:19,506 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 [2022-01-10 13:35:19,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:19,519 INFO L225 Difference]: With dead ends: 4067 [2022-01-10 13:35:19,519 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:19,521 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 [2022-01-10 13:35:19,522 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, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:19,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4656 Valid, 4781 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:35:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:19,650 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) [2022-01-10 13:35:19,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5342 transitions. [2022-01-10 13:35:19,657 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5342 transitions. Word has length 88 [2022-01-10 13:35:19,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:19,657 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5342 transitions. [2022-01-10 13:35:19,657 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) [2022-01-10 13:35:19,657 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5342 transitions. [2022-01-10 13:35:19,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:19,658 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:19,658 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] [2022-01-10 13:35:19,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:35:19,658 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1199240468, now seen corresponding path program 1 times [2022-01-10 13:35:19,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:19,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233349302] [2022-01-10 13:35:19,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:19,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:19,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:19,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:19,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233349302] [2022-01-10 13:35:19,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233349302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:19,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:19,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:19,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764933779] [2022-01-10 13:35:19,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:19,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:19,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:19,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:19,700 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) [2022-01-10 13:35:19,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:19,777 INFO L93 Difference]: Finished difference Result 4066 states and 6697 transitions. [2022-01-10 13:35:19,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:19,777 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 [2022-01-10 13:35:19,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:19,783 INFO L225 Difference]: With dead ends: 4066 [2022-01-10 13:35:19,783 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:19,785 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 [2022-01-10 13:35:19,785 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 [2022-01-10 13:35:19,785 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] [2022-01-10 13:35:19,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:19,847 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) [2022-01-10 13:35:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5320 transitions. [2022-01-10 13:35:19,852 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5320 transitions. Word has length 88 [2022-01-10 13:35:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:19,853 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5320 transitions. [2022-01-10 13:35:19,853 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) [2022-01-10 13:35:19,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5320 transitions. [2022-01-10 13:35:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:19,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:19,854 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] [2022-01-10 13:35:19,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:35:19,854 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 138930227, now seen corresponding path program 1 times [2022-01-10 13:35:19,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:19,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679484617] [2022-01-10 13:35:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:19,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:19,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:19,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679484617] [2022-01-10 13:35:19,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679484617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:19,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:19,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:19,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614811374] [2022-01-10 13:35:19,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:19,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:19,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:19,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:19,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:19,879 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) [2022-01-10 13:35:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:19,953 INFO L93 Difference]: Finished difference Result 4065 states and 6652 transitions. [2022-01-10 13:35:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:19,954 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 [2022-01-10 13:35:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:19,959 INFO L225 Difference]: With dead ends: 4065 [2022-01-10 13:35:19,959 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:19,961 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 [2022-01-10 13:35:19,961 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 [2022-01-10 13:35:19,962 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] [2022-01-10 13:35:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:20,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:20,026 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) [2022-01-10 13:35:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5298 transitions. [2022-01-10 13:35:20,032 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5298 transitions. Word has length 88 [2022-01-10 13:35:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:20,033 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5298 transitions. [2022-01-10 13:35:20,033 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) [2022-01-10 13:35:20,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5298 transitions. [2022-01-10 13:35:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:20,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:20,034 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] [2022-01-10 13:35:20,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:35:20,034 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:20,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:20,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1321696978, now seen corresponding path program 1 times [2022-01-10 13:35:20,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:20,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632681889] [2022-01-10 13:35:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:20,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:20,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:20,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632681889] [2022-01-10 13:35:20,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632681889] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:20,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:20,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:20,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718697801] [2022-01-10 13:35:20,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:20,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:20,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:20,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:20,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:20,071 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) [2022-01-10 13:35:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:20,151 INFO L93 Difference]: Finished difference Result 4064 states and 6607 transitions. [2022-01-10 13:35:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:20,151 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 [2022-01-10 13:35:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:20,157 INFO L225 Difference]: With dead ends: 4064 [2022-01-10 13:35:20,157 INFO L226 Difference]: Without dead ends: 3104 [2022-01-10 13:35:20,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:20,160 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 [2022-01-10 13:35:20,160 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] [2022-01-10 13:35:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2022-01-10 13:35:20,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3104. [2022-01-10 13:35:20,227 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) [2022-01-10 13:35:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 5276 transitions. [2022-01-10 13:35:20,233 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 5276 transitions. Word has length 88 [2022-01-10 13:35:20,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:20,233 INFO L470 AbstractCegarLoop]: Abstraction has 3104 states and 5276 transitions. [2022-01-10 13:35:20,233 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) [2022-01-10 13:35:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 5276 transitions. [2022-01-10 13:35:20,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 13:35:20,234 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:20,234 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] [2022-01-10 13:35:20,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:35:20,234 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash 717173394, now seen corresponding path program 1 times [2022-01-10 13:35:20,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269786752] [2022-01-10 13:35:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:20,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:20,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:20,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269786752] [2022-01-10 13:35:20,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269786752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:20,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:20,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:20,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491485284] [2022-01-10 13:35:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:20,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:20,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:20,261 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) [2022-01-10 13:35:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:20,390 INFO L93 Difference]: Finished difference Result 4930 states and 7715 transitions. [2022-01-10 13:35:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:20,390 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 [2022-01-10 13:35:20,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:20,396 INFO L225 Difference]: With dead ends: 4930 [2022-01-10 13:35:20,397 INFO L226 Difference]: Without dead ends: 3972 [2022-01-10 13:35:20,399 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 [2022-01-10 13:35:20,400 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 [2022-01-10 13:35:20,400 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] [2022-01-10 13:35:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2022-01-10 13:35:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 3890. [2022-01-10 13:35:20,516 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) [2022-01-10 13:35:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3890 states to 3890 states and 6306 transitions. [2022-01-10 13:35:20,522 INFO L78 Accepts]: Start accepts. Automaton has 3890 states and 6306 transitions. Word has length 88 [2022-01-10 13:35:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:20,523 INFO L470 AbstractCegarLoop]: Abstraction has 3890 states and 6306 transitions. [2022-01-10 13:35:20,523 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) [2022-01-10 13:35:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3890 states and 6306 transitions. [2022-01-10 13:35:20,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 13:35:20,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:20,525 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] [2022-01-10 13:35:20,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:35:20,525 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:20,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1891710493, now seen corresponding path program 1 times [2022-01-10 13:35:20,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:20,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036100697] [2022-01-10 13:35:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:20,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:20,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:20,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036100697] [2022-01-10 13:35:20,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036100697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:20,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:20,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:35:20,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924937345] [2022-01-10 13:35:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:20,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:35:20,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:35:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:35:20,577 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) [2022-01-10 13:35:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:20,771 INFO L93 Difference]: Finished difference Result 6181 states and 9392 transitions. [2022-01-10 13:35:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:35:20,772 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 [2022-01-10 13:35:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:20,779 INFO L225 Difference]: With dead ends: 6181 [2022-01-10 13:35:20,779 INFO L226 Difference]: Without dead ends: 4448 [2022-01-10 13:35:20,782 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 [2022-01-10 13:35:20,783 INFO L933 BasicCegarLoop]: 4796 mSDtfsCounter, 1922 mSDsluCounter, 13102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-01-10 13:35:20,783 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] [2022-01-10 13:35:20,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2022-01-10 13:35:20,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 3896. [2022-01-10 13:35:20,881 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) [2022-01-10 13:35:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6285 transitions. [2022-01-10 13:35:20,888 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6285 transitions. Word has length 142 [2022-01-10 13:35:20,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:20,889 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6285 transitions. [2022-01-10 13:35:20,889 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) [2022-01-10 13:35:20,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6285 transitions. [2022-01-10 13:35:20,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 13:35:20,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:20,891 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] [2022-01-10 13:35:20,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:35:20,891 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:20,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:20,891 INFO L85 PathProgramCache]: Analyzing trace with hash -815157084, now seen corresponding path program 1 times [2022-01-10 13:35:20,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:20,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508001644] [2022-01-10 13:35:20,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:20,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:20,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:20,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508001644] [2022-01-10 13:35:20,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508001644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:20,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:20,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:35:20,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500985304] [2022-01-10 13:35:20,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:20,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:20,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:20,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:20,947 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) [2022-01-10 13:35:21,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:21,049 INFO L93 Difference]: Finished difference Result 5653 states and 8587 transitions. [2022-01-10 13:35:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:21,049 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 [2022-01-10 13:35:21,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:21,055 INFO L225 Difference]: With dead ends: 5653 [2022-01-10 13:35:21,055 INFO L226 Difference]: Without dead ends: 3896 [2022-01-10 13:35:21,058 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 [2022-01-10 13:35:21,058 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 [2022-01-10 13:35:21,058 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] [2022-01-10 13:35:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2022-01-10 13:35:21,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2022-01-10 13:35:21,148 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) [2022-01-10 13:35:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 6258 transitions. [2022-01-10 13:35:21,154 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 6258 transitions. Word has length 142 [2022-01-10 13:35:21,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:21,154 INFO L470 AbstractCegarLoop]: Abstraction has 3896 states and 6258 transitions. [2022-01-10 13:35:21,154 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) [2022-01-10 13:35:21,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 6258 transitions. [2022-01-10 13:35:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 13:35:21,156 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:21,156 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] [2022-01-10 13:35:21,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:35:21,156 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:21,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:21,156 INFO L85 PathProgramCache]: Analyzing trace with hash 51895141, now seen corresponding path program 1 times [2022-01-10 13:35:21,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:21,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456001976] [2022-01-10 13:35:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:21,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:21,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:21,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456001976] [2022-01-10 13:35:21,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456001976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:21,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:21,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:21,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957945406] [2022-01-10 13:35:21,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:21,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:21,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:21,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:21,199 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) [2022-01-10 13:35:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:21,424 INFO L93 Difference]: Finished difference Result 7264 states and 10638 transitions. [2022-01-10 13:35:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:21,425 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 [2022-01-10 13:35:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:21,435 INFO L225 Difference]: With dead ends: 7264 [2022-01-10 13:35:21,435 INFO L226 Difference]: Without dead ends: 5520 [2022-01-10 13:35:21,439 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 [2022-01-10 13:35:21,441 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 [2022-01-10 13:35:21,441 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] [2022-01-10 13:35:21,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2022-01-10 13:35:21,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5372. [2022-01-10 13:35:21,675 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) [2022-01-10 13:35:21,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8166 transitions. [2022-01-10 13:35:21,685 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8166 transitions. Word has length 142 [2022-01-10 13:35:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:21,685 INFO L470 AbstractCegarLoop]: Abstraction has 5372 states and 8166 transitions. [2022-01-10 13:35:21,685 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) [2022-01-10 13:35:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8166 transitions. [2022-01-10 13:35:21,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 13:35:21,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:21,688 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] [2022-01-10 13:35:21,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:35:21,688 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:21,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:21,688 INFO L85 PathProgramCache]: Analyzing trace with hash 282557349, now seen corresponding path program 1 times [2022-01-10 13:35:21,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:21,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492895933] [2022-01-10 13:35:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:21,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:21,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:21,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492895933] [2022-01-10 13:35:21,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492895933] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:21,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:21,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:21,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386302114] [2022-01-10 13:35:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:21,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:21,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:21,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:21,736 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) [2022-01-10 13:35:22,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:22,006 INFO L93 Difference]: Finished difference Result 11485 states and 16014 transitions. [2022-01-10 13:35:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:22,006 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 [2022-01-10 13:35:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:22,020 INFO L225 Difference]: With dead ends: 11485 [2022-01-10 13:35:22,021 INFO L226 Difference]: Without dead ends: 8311 [2022-01-10 13:35:22,027 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 [2022-01-10 13:35:22,027 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 [2022-01-10 13:35:22,027 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] [2022-01-10 13:35:22,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2022-01-10 13:35:22,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 8307. [2022-01-10 13:35:22,314 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) [2022-01-10 13:35:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8307 states to 8307 states and 11864 transitions. [2022-01-10 13:35:22,329 INFO L78 Accepts]: Start accepts. Automaton has 8307 states and 11864 transitions. Word has length 142 [2022-01-10 13:35:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:22,330 INFO L470 AbstractCegarLoop]: Abstraction has 8307 states and 11864 transitions. [2022-01-10 13:35:22,330 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) [2022-01-10 13:35:22,330 INFO L276 IsEmpty]: Start isEmpty. Operand 8307 states and 11864 transitions. [2022-01-10 13:35:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-01-10 13:35:22,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:22,333 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] [2022-01-10 13:35:22,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:35:22,334 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:22,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1655981948, now seen corresponding path program 1 times [2022-01-10 13:35:22,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592393489] [2022-01-10 13:35:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:22,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:22,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:22,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592393489] [2022-01-10 13:35:22,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592393489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:22,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:22,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:22,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944831216] [2022-01-10 13:35:22,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:22,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:22,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:22,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:22,361 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) [2022-01-10 13:35:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:22,659 INFO L93 Difference]: Finished difference Result 14345 states and 19594 transitions. [2022-01-10 13:35:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:22,660 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 [2022-01-10 13:35:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:22,673 INFO L225 Difference]: With dead ends: 14345 [2022-01-10 13:35:22,673 INFO L226 Difference]: Without dead ends: 8236 [2022-01-10 13:35:22,682 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 [2022-01-10 13:35:22,683 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 [2022-01-10 13:35:22,683 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] [2022-01-10 13:35:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-01-10 13:35:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 8236. [2022-01-10 13:35:22,984 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) [2022-01-10 13:35:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11779 transitions. [2022-01-10 13:35:22,994 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11779 transitions. Word has length 142 [2022-01-10 13:35:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:22,995 INFO L470 AbstractCegarLoop]: Abstraction has 8236 states and 11779 transitions. [2022-01-10 13:35:22,995 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) [2022-01-10 13:35:22,995 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11779 transitions. [2022-01-10 13:35:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:35:22,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:22,998 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] [2022-01-10 13:35:22,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:35:22,999 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:22,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1765629220, now seen corresponding path program 1 times [2022-01-10 13:35:22,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:22,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982165196] [2022-01-10 13:35:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:22,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:23,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:23,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982165196] [2022-01-10 13:35:23,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982165196] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:23,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:23,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:23,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057810637] [2022-01-10 13:35:23,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:23,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:23,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:23,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:23,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:23,043 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) [2022-01-10 13:35:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:23,592 INFO L93 Difference]: Finished difference Result 19926 states and 26681 transitions. [2022-01-10 13:35:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:23,593 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 [2022-01-10 13:35:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:23,618 INFO L225 Difference]: With dead ends: 19926 [2022-01-10 13:35:23,619 INFO L226 Difference]: Without dead ends: 13888 [2022-01-10 13:35:23,631 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 [2022-01-10 13:35:23,632 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 [2022-01-10 13:35:23,632 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] [2022-01-10 13:35:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-01-10 13:35:24,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13484. [2022-01-10 13:35:24,252 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) [2022-01-10 13:35:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13484 states to 13484 states and 18397 transitions. [2022-01-10 13:35:24,271 INFO L78 Accepts]: Start accepts. Automaton has 13484 states and 18397 transitions. Word has length 143 [2022-01-10 13:35:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:24,271 INFO L470 AbstractCegarLoop]: Abstraction has 13484 states and 18397 transitions. [2022-01-10 13:35:24,271 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) [2022-01-10 13:35:24,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13484 states and 18397 transitions. [2022-01-10 13:35:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-01-10 13:35:24,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:24,300 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] [2022-01-10 13:35:24,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:35:24,300 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:24,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:24,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1119024441, now seen corresponding path program 1 times [2022-01-10 13:35:24,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:24,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612862577] [2022-01-10 13:35:24,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:24,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:24,324 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:24,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:24,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612862577] [2022-01-10 13:35:24,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612862577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:24,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:24,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:24,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177134262] [2022-01-10 13:35:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:24,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:24,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:24,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:24,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:24,327 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) [2022-01-10 13:35:24,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:24,822 INFO L93 Difference]: Finished difference Result 24735 states and 32704 transitions. [2022-01-10 13:35:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:24,823 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 [2022-01-10 13:35:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:24,839 INFO L225 Difference]: With dead ends: 24735 [2022-01-10 13:35:24,840 INFO L226 Difference]: Without dead ends: 13414 [2022-01-10 13:35:24,850 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 [2022-01-10 13:35:24,850 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 [2022-01-10 13:35:24,851 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] [2022-01-10 13:35:24,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13414 states. [2022-01-10 13:35:25,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13414 to 13414. [2022-01-10 13:35:25,359 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) [2022-01-10 13:35:25,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13414 states to 13414 states and 18314 transitions. [2022-01-10 13:35:25,374 INFO L78 Accepts]: Start accepts. Automaton has 13414 states and 18314 transitions. Word has length 143 [2022-01-10 13:35:25,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:25,374 INFO L470 AbstractCegarLoop]: Abstraction has 13414 states and 18314 transitions. [2022-01-10 13:35:25,374 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) [2022-01-10 13:35:25,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13414 states and 18314 transitions. [2022-01-10 13:35:25,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 13:35:25,378 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:25,378 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] [2022-01-10 13:35:25,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:35:25,379 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:25,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:25,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1474324216, now seen corresponding path program 1 times [2022-01-10 13:35:25,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:25,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339582371] [2022-01-10 13:35:25,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:25,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:25,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:25,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339582371] [2022-01-10 13:35:25,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339582371] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:25,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:25,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:25,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90666750] [2022-01-10 13:35:25,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:25,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:25,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:25,442 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) [2022-01-10 13:35:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:26,440 INFO L93 Difference]: Finished difference Result 34875 states and 45550 transitions. [2022-01-10 13:35:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:26,455 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 [2022-01-10 13:35:26,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:26,523 INFO L225 Difference]: With dead ends: 34875 [2022-01-10 13:35:26,523 INFO L226 Difference]: Without dead ends: 23659 [2022-01-10 13:35:26,540 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 [2022-01-10 13:35:26,541 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 [2022-01-10 13:35:26,541 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] [2022-01-10 13:35:26,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23659 states. [2022-01-10 13:35:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23659 to 23079. [2022-01-10 13:35:27,577 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) [2022-01-10 13:35:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23079 states to 23079 states and 30490 transitions. [2022-01-10 13:35:27,643 INFO L78 Accepts]: Start accepts. Automaton has 23079 states and 30490 transitions. Word has length 144 [2022-01-10 13:35:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:27,643 INFO L470 AbstractCegarLoop]: Abstraction has 23079 states and 30490 transitions. [2022-01-10 13:35:27,644 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) [2022-01-10 13:35:27,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23079 states and 30490 transitions. [2022-01-10 13:35:27,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 13:35:27,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:27,652 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] [2022-01-10 13:35:27,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:35:27,652 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:27,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2061801369, now seen corresponding path program 1 times [2022-01-10 13:35:27,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:27,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757825551] [2022-01-10 13:35:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:27,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:27,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:27,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757825551] [2022-01-10 13:35:27,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757825551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:27,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:27,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:27,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296958649] [2022-01-10 13:35:27,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:27,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:27,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:27,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:27,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:27,711 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) [2022-01-10 13:35:28,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:28,592 INFO L93 Difference]: Finished difference Result 43919 states and 56884 transitions. [2022-01-10 13:35:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:28,593 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 [2022-01-10 13:35:28,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:28,625 INFO L225 Difference]: With dead ends: 43919 [2022-01-10 13:35:28,625 INFO L226 Difference]: Without dead ends: 23010 [2022-01-10 13:35:28,638 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 [2022-01-10 13:35:28,638 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 [2022-01-10 13:35:28,638 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] [2022-01-10 13:35:28,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23010 states. [2022-01-10 13:35:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23010 to 23010. [2022-01-10 13:35:29,749 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) [2022-01-10 13:35:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23010 states to 23010 states and 30409 transitions. [2022-01-10 13:35:29,774 INFO L78 Accepts]: Start accepts. Automaton has 23010 states and 30409 transitions. Word has length 144 [2022-01-10 13:35:29,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:29,775 INFO L470 AbstractCegarLoop]: Abstraction has 23010 states and 30409 transitions. [2022-01-10 13:35:29,775 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) [2022-01-10 13:35:29,775 INFO L276 IsEmpty]: Start isEmpty. Operand 23010 states and 30409 transitions. [2022-01-10 13:35:29,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 13:35:29,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:29,782 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] [2022-01-10 13:35:29,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:35:29,783 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:29,783 INFO L85 PathProgramCache]: Analyzing trace with hash -464981875, now seen corresponding path program 1 times [2022-01-10 13:35:29,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717417622] [2022-01-10 13:35:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:29,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:29,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:29,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717417622] [2022-01-10 13:35:29,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717417622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:29,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:29,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:29,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476866371] [2022-01-10 13:35:29,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:29,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:29,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:29,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:29,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:29,821 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) [2022-01-10 13:35:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:31,591 INFO L93 Difference]: Finished difference Result 62246 states and 80027 transitions. [2022-01-10 13:35:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:31,591 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 [2022-01-10 13:35:31,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:31,653 INFO L225 Difference]: With dead ends: 62246 [2022-01-10 13:35:31,653 INFO L226 Difference]: Without dead ends: 41434 [2022-01-10 13:35:31,670 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 [2022-01-10 13:35:31,671 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 [2022-01-10 13:35:31,672 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] [2022-01-10 13:35:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41434 states. [2022-01-10 13:35:33,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41434 to 40726. [2022-01-10 13:35:33,509 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) [2022-01-10 13:35:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40726 states to 40726 states and 52679 transitions. [2022-01-10 13:35:33,621 INFO L78 Accepts]: Start accepts. Automaton has 40726 states and 52679 transitions. Word has length 145 [2022-01-10 13:35:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:33,629 INFO L470 AbstractCegarLoop]: Abstraction has 40726 states and 52679 transitions. [2022-01-10 13:35:33,629 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) [2022-01-10 13:35:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 40726 states and 52679 transitions. [2022-01-10 13:35:33,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-10 13:35:33,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:33,680 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] [2022-01-10 13:35:33,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:35:33,680 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:33,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1877195979, now seen corresponding path program 1 times [2022-01-10 13:35:33,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:33,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931301147] [2022-01-10 13:35:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:33,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:33,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:33,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931301147] [2022-01-10 13:35:33,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931301147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:33,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:33,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:33,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69336860] [2022-01-10 13:35:33,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:33,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:33,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:33,729 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) [2022-01-10 13:35:35,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:35,552 INFO L93 Difference]: Finished difference Result 79207 states and 101256 transitions. [2022-01-10 13:35:35,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:35,552 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 [2022-01-10 13:35:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:35,605 INFO L225 Difference]: With dead ends: 79207 [2022-01-10 13:35:35,606 INFO L226 Difference]: Without dead ends: 40658 [2022-01-10 13:35:35,630 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 [2022-01-10 13:35:35,631 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 [2022-01-10 13:35:35,631 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] [2022-01-10 13:35:35,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40658 states. [2022-01-10 13:35:37,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40658 to 40658. [2022-01-10 13:35:37,490 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) [2022-01-10 13:35:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40658 states to 40658 states and 52600 transitions. [2022-01-10 13:35:37,539 INFO L78 Accepts]: Start accepts. Automaton has 40658 states and 52600 transitions. Word has length 145 [2022-01-10 13:35:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:37,540 INFO L470 AbstractCegarLoop]: Abstraction has 40658 states and 52600 transitions. [2022-01-10 13:35:37,540 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) [2022-01-10 13:35:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 40658 states and 52600 transitions. [2022-01-10 13:35:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-10 13:35:37,550 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:37,550 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] [2022-01-10 13:35:37,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:35:37,550 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1989266078, now seen corresponding path program 1 times [2022-01-10 13:35:37,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:37,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022200527] [2022-01-10 13:35:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:37,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:37,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:37,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022200527] [2022-01-10 13:35:37,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022200527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:37,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:37,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:37,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977283754] [2022-01-10 13:35:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:37,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:37,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:37,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:37,593 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) [2022-01-10 13:35:40,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:40,681 INFO L93 Difference]: Finished difference Result 111885 states and 142296 transitions. [2022-01-10 13:35:40,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:40,681 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 [2022-01-10 13:35:40,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:40,780 INFO L225 Difference]: With dead ends: 111885 [2022-01-10 13:35:40,780 INFO L226 Difference]: Without dead ends: 73425 [2022-01-10 13:35:40,816 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 [2022-01-10 13:35:40,817 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 [2022-01-10 13:35:40,817 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] [2022-01-10 13:35:40,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73425 states. [2022-01-10 13:35:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73425 to 72909. [2022-01-10 13:35:44,255 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) [2022-01-10 13:35:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72909 states to 72909 states and 93076 transitions. [2022-01-10 13:35:44,381 INFO L78 Accepts]: Start accepts. Automaton has 72909 states and 93076 transitions. Word has length 146 [2022-01-10 13:35:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:44,383 INFO L470 AbstractCegarLoop]: Abstraction has 72909 states and 93076 transitions. [2022-01-10 13:35:44,383 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) [2022-01-10 13:35:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 72909 states and 93076 transitions. [2022-01-10 13:35:44,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-10 13:35:44,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:44,406 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] [2022-01-10 13:35:44,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:35:44,406 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:44,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:44,406 INFO L85 PathProgramCache]: Analyzing trace with hash 144298115, now seen corresponding path program 1 times [2022-01-10 13:35:44,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:44,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139800768] [2022-01-10 13:35:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:44,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:44,428 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:35:44,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:44,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139800768] [2022-01-10 13:35:44,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139800768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:44,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:44,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:44,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517743462] [2022-01-10 13:35:44,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:44,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:44,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:44,430 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) [2022-01-10 13:35:47,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:47,909 INFO L93 Difference]: Finished difference Result 143567 states and 182044 transitions. [2022-01-10 13:35:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:47,910 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 [2022-01-10 13:35:47,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:48,025 INFO L225 Difference]: With dead ends: 143567 [2022-01-10 13:35:48,025 INFO L226 Difference]: Without dead ends: 72842 [2022-01-10 13:35:48,080 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 [2022-01-10 13:35:48,081 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 [2022-01-10 13:35:48,081 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] [2022-01-10 13:35:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72842 states. [2022-01-10 13:35:51,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72842 to 72842. [2022-01-10 13:35:51,652 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) [2022-01-10 13:35:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72842 states to 72842 states and 92999 transitions. [2022-01-10 13:35:51,766 INFO L78 Accepts]: Start accepts. Automaton has 72842 states and 92999 transitions. Word has length 146 [2022-01-10 13:35:51,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:35:51,766 INFO L470 AbstractCegarLoop]: Abstraction has 72842 states and 92999 transitions. [2022-01-10 13:35:51,767 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) [2022-01-10 13:35:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 72842 states and 92999 transitions. [2022-01-10 13:35:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 13:35:51,795 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:35:51,796 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] [2022-01-10 13:35:51,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:35:51,797 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:35:51,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:35:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash -33986521, now seen corresponding path program 1 times [2022-01-10 13:35:51,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:35:51,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748310222] [2022-01-10 13:35:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:35:51,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:35:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:35:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:35:51,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:35:51,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748310222] [2022-01-10 13:35:51,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748310222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:35:51,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:35:51,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:35:51,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864503575] [2022-01-10 13:35:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:35:51,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:35:51,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:35:51,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:35:51,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:35:51,985 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) [2022-01-10 13:35:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:35:58,190 INFO L93 Difference]: Finished difference Result 206390 states and 260426 transitions. [2022-01-10 13:35:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:35:58,191 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 147 [2022-01-10 13:35:58,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:35:58,427 INFO L225 Difference]: With dead ends: 206390 [2022-01-10 13:35:58,427 INFO L226 Difference]: Without dead ends: 135746 [2022-01-10 13:35:58,498 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 [2022-01-10 13:35:58,499 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 601 mSDsluCounter, 4645 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 9917 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:35:58,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [601 Valid, 9917 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:35:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135746 states. [2022-01-10 13:36:05,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135746 to 135746. [2022-01-10 13:36:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135746 states, 135743 states have (on average 1.2556669588855411) internal successors, (170448), 135745 states have internal predecessors, (170448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:36:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135746 states to 135746 states and 170448 transitions. [2022-01-10 13:36:05,537 INFO L78 Accepts]: Start accepts. Automaton has 135746 states and 170448 transitions. Word has length 147 [2022-01-10 13:36:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:36:05,537 INFO L470 AbstractCegarLoop]: Abstraction has 135746 states and 170448 transitions. [2022-01-10 13:36:05,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-01-10 13:36:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 135746 states and 170448 transitions. [2022-01-10 13:36:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-01-10 13:36:05,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:36:05,637 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:36:05,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:36:05,637 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:36:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:36:05,638 INFO L85 PathProgramCache]: Analyzing trace with hash -859951778, now seen corresponding path program 1 times [2022-01-10 13:36:05,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:36:05,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449404] [2022-01-10 13:36:05,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:36:05,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:36:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:36:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:36:05,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:36:05,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449404] [2022-01-10 13:36:05,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:36:05,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:36:05,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:36:05,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989210290] [2022-01-10 13:36:05,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:36:05,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:36:05,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:36:05,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:36:05,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:36:05,700 INFO L87 Difference]: Start difference. First operand 135746 states and 170448 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 2 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)