/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_label46+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:42:06,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:42:06,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:42:06,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:42:06,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:42:06,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:42:06,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:42:06,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:42:06,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:42:06,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:42:06,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:42:06,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:42:06,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:42:06,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:42:06,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:42:06,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:42:06,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:42:06,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:42:06,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:42:06,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:42:06,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:42:06,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:42:06,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:42:06,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:42:06,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 13:42:06,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 13:42:06,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 13:42:06,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 13:42:06,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 13:42:06,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 13:42:06,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:42:06,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:42:06,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:42:06,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:42:06,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:42:06,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:42:06,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:42:06,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:42:06,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:42:06,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:42:06,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:42:06,218 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 13:42:06,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:42:06,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:42:06,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:42:06,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:42:06,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:42:06,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:42:06,243 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:42:06,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:42:06,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:42:06,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:42:06,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:42:06,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:42:06,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:42:06,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:42:06,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:42:06,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:42:06,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:42:06,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:42:06,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:42:06,248 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:42:06,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:42:06,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:42:06,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:42:06,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:42:06,434 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:42:06,435 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:42:06,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2022-01-10 13:42:06,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f1f7fa9/f9860ea1b56b4132b0d301ed036d1d40/FLAG4416f520f [2022-01-10 13:42:07,233 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:42:07,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2022-01-10 13:42:07,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f1f7fa9/f9860ea1b56b4132b0d301ed036d1d40/FLAG4416f520f [2022-01-10 13:42:07,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92f1f7fa9/f9860ea1b56b4132b0d301ed036d1d40 [2022-01-10 13:42:07,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:42:07,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:42:07,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:42:07,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:42:07,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:42:07,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:42:07" (1/1) ... [2022-01-10 13:42:07,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea7e491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:07, skipping insertion in model container [2022-01-10 13:42:07,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:42:07" (1/1) ... [2022-01-10 13:42:07,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:42:07,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:42:08,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2022-01-10 13:42:08,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2022-01-10 13:42:09,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:42:09,098 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:42:09,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2022-01-10 13:42:09,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2022-01-10 13:42:09,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:42:09,831 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:42:09,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09 WrapperNode [2022-01-10 13:42:09,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:42:09,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:42:09,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:42:09,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:42:09,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:09,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,156 INFO L137 Inliner]: procedures = 57, calls = 60, calls flagged for inlining = 55, calls inlined = 124, statements flattened = 13997 [2022-01-10 13:42:10,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:42:10,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:42:10,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:42:10,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:42:10,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:42:10,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:42:10,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:42:10,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:42:10,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (1/1) ... [2022-01-10 13:42:10,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:42:10,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:42:10,769 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 13:42:10,796 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 13:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:42:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:42:10,957 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:42:10,958 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:42:17,982 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:42:18,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:42:18,009 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-10 13:42:18,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:42:18 BoogieIcfgContainer [2022-01-10 13:42:18,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:42:18,015 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:42:18,015 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:42:18,016 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:42:18,018 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:42:18" (1/1) ... [2022-01-10 13:42:19,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:42:19 BasicIcfg [2022-01-10 13:42:19,339 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:42:19,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:42:19,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:42:19,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:42:19,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:42:07" (1/4) ... [2022-01-10 13:42:19,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb25a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:42:19, skipping insertion in model container [2022-01-10 13:42:19,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:42:09" (2/4) ... [2022-01-10 13:42:19,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb25a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:42:19, skipping insertion in model container [2022-01-10 13:42:19,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:42:18" (3/4) ... [2022-01-10 13:42:19,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb25a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:42:19, skipping insertion in model container [2022-01-10 13:42:19,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:42:19" (4/4) ... [2022-01-10 13:42:19,344 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-1.cTransformedIcfg [2022-01-10 13:42:19,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:42:19,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:42:19,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:42:19,383 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 13:42:19,383 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:42:19,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:19,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:19,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:19,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:19,421 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 13:42:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash -367206436, now seen corresponding path program 1 times [2022-01-10 13:42:19,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:19,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604397199] [2022-01-10 13:42:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:19,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:19,629 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 13:42:19,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:19,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604397199] [2022-01-10 13:42:19,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604397199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:19,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:19,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:19,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002083408] [2022-01-10 13:42:19,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:19,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:19,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:19,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:19,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:19,657 INFO L87 Difference]: Start difference. First operand has 2879 states, 2875 states have (on average 1.7888695652173914) internal successors, (5143), 2878 states have internal predecessors, (5143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:19,839 INFO L93 Difference]: Finished difference Result 6295 states and 11099 transitions. [2022-01-10 13:42:19,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:19,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:19,861 INFO L225 Difference]: With dead ends: 6295 [2022-01-10 13:42:19,861 INFO L226 Difference]: Without dead ends: 3359 [2022-01-10 13:42:19,869 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 13:42:19,874 INFO L933 BasicCegarLoop]: 5052 mSDtfsCounter, 4967 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4967 SdHoareTripleChecker+Valid, 5936 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:19,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4967 Valid, 5936 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2022-01-10 13:42:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 3355. [2022-01-10 13:42:19,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7297136038186158) internal successors, (5798), 3354 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5798 transitions. [2022-01-10 13:42:19,994 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5798 transitions. Word has length 99 [2022-01-10 13:42:19,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:19,994 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5798 transitions. [2022-01-10 13:42:19,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5798 transitions. [2022-01-10 13:42:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:19,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:19,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:19,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:42:19,998 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 13:42:19,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:19,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1494091516, now seen corresponding path program 1 times [2022-01-10 13:42:19,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:19,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780714783] [2022-01-10 13:42:19,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:19,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:20,077 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 13:42:20,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:20,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780714783] [2022-01-10 13:42:20,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780714783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:20,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:20,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:20,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356588749] [2022-01-10 13:42:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:20,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:20,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:20,079 INFO L87 Difference]: Start difference. First operand 3355 states and 5798 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:20,147 INFO L93 Difference]: Finished difference Result 4575 states and 7616 transitions. [2022-01-10 13:42:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:20,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:20,158 INFO L225 Difference]: With dead ends: 4575 [2022-01-10 13:42:20,158 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:20,160 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 13:42:20,161 INFO L933 BasicCegarLoop]: 4979 mSDtfsCounter, 4970 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4970 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:20,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4970 Valid, 4979 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:20,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.727326968973747) internal successors, (5790), 3354 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5790 transitions. [2022-01-10 13:42:20,229 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5790 transitions. Word has length 99 [2022-01-10 13:42:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:20,229 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5790 transitions. [2022-01-10 13:42:20,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5790 transitions. [2022-01-10 13:42:20,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:20,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:20,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:20,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:42:20,231 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 13:42:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 30112732, now seen corresponding path program 1 times [2022-01-10 13:42:20,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:20,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878625674] [2022-01-10 13:42:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:20,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:20,283 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 13:42:20,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:20,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878625674] [2022-01-10 13:42:20,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878625674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:20,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:20,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:20,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485479144] [2022-01-10 13:42:20,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:20,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:20,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:20,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:20,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:20,285 INFO L87 Difference]: Start difference. First operand 3355 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:20,343 INFO L93 Difference]: Finished difference Result 4573 states and 7597 transitions. [2022-01-10 13:42:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:20,353 INFO L225 Difference]: With dead ends: 4573 [2022-01-10 13:42:20,354 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:20,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:20,361 INFO L933 BasicCegarLoop]: 4974 mSDtfsCounter, 4963 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4963 SdHoareTripleChecker+Valid, 4974 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:20,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4963 Valid, 4974 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:20,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7249403341288783) internal successors, (5782), 3354 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5782 transitions. [2022-01-10 13:42:20,433 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5782 transitions. Word has length 99 [2022-01-10 13:42:20,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:20,434 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5782 transitions. [2022-01-10 13:42:20,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5782 transitions. [2022-01-10 13:42:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:20,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:20,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:20,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:42:20,440 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 13:42:20,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1423923012, now seen corresponding path program 1 times [2022-01-10 13:42:20,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:20,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961763882] [2022-01-10 13:42:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:20,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:20,525 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 13:42:20,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:20,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961763882] [2022-01-10 13:42:20,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961763882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:20,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:20,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:20,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737307868] [2022-01-10 13:42:20,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:20,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:20,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:20,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:20,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:20,527 INFO L87 Difference]: Start difference. First operand 3355 states and 5782 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:20,593 INFO L93 Difference]: Finished difference Result 4572 states and 7580 transitions. [2022-01-10 13:42:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:20,603 INFO L225 Difference]: With dead ends: 4572 [2022-01-10 13:42:20,604 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:20,608 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 13:42:20,613 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 4957 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:20,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4957 Valid, 4969 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:20,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:20,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7225536992840096) internal successors, (5774), 3354 states have internal predecessors, (5774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5774 transitions. [2022-01-10 13:42:20,878 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5774 transitions. Word has length 99 [2022-01-10 13:42:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:20,878 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5774 transitions. [2022-01-10 13:42:20,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5774 transitions. [2022-01-10 13:42:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:20,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:20,879 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:20,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:42:20,879 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 13:42:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:20,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1577213916, now seen corresponding path program 1 times [2022-01-10 13:42:20,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:20,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069640403] [2022-01-10 13:42:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:20,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:20,931 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 13:42:20,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:20,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069640403] [2022-01-10 13:42:20,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069640403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:20,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:20,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:20,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3175306] [2022-01-10 13:42:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:20,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:20,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:20,933 INFO L87 Difference]: Start difference. First operand 3355 states and 5774 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:20,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:20,991 INFO L93 Difference]: Finished difference Result 4571 states and 7563 transitions. [2022-01-10 13:42:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:21,002 INFO L225 Difference]: With dead ends: 4571 [2022-01-10 13:42:21,002 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:21,004 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 13:42:21,004 INFO L933 BasicCegarLoop]: 4964 mSDtfsCounter, 4951 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:21,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 4964 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.720167064439141) internal successors, (5766), 3354 states have internal predecessors, (5766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5766 transitions. [2022-01-10 13:42:21,090 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5766 transitions. Word has length 99 [2022-01-10 13:42:21,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:21,093 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5766 transitions. [2022-01-10 13:42:21,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5766 transitions. [2022-01-10 13:42:21,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:21,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:21,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:21,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:42:21,098 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 13:42:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:21,099 INFO L85 PathProgramCache]: Analyzing trace with hash 981288124, now seen corresponding path program 1 times [2022-01-10 13:42:21,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:21,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100642697] [2022-01-10 13:42:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:21,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:21,148 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 13:42:21,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:21,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100642697] [2022-01-10 13:42:21,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100642697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:21,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:21,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:21,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186891347] [2022-01-10 13:42:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:21,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:21,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:21,150 INFO L87 Difference]: Start difference. First operand 3355 states and 5766 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:21,227 INFO L93 Difference]: Finished difference Result 4569 states and 7544 transitions. [2022-01-10 13:42:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:21,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:21,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:21,237 INFO L225 Difference]: With dead ends: 4569 [2022-01-10 13:42:21,237 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:21,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:21,240 INFO L933 BasicCegarLoop]: 4941 mSDtfsCounter, 4863 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4863 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:21,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4863 Valid, 5009 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:21,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:21,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7130071599045347) internal successors, (5742), 3354 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5742 transitions. [2022-01-10 13:42:21,400 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5742 transitions. Word has length 99 [2022-01-10 13:42:21,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:21,401 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5742 transitions. [2022-01-10 13:42:21,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5742 transitions. [2022-01-10 13:42:21,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:21,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:21,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:21,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:42:21,402 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 13:42:21,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:21,402 INFO L85 PathProgramCache]: Analyzing trace with hash 488134171, now seen corresponding path program 1 times [2022-01-10 13:42:21,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:21,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150614374] [2022-01-10 13:42:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:21,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:21,435 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 13:42:21,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:21,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150614374] [2022-01-10 13:42:21,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150614374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:21,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:21,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:21,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378336003] [2022-01-10 13:42:21,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:21,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:21,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:21,437 INFO L87 Difference]: Start difference. First operand 3355 states and 5742 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:21,541 INFO L93 Difference]: Finished difference Result 4568 states and 7495 transitions. [2022-01-10 13:42:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:21,552 INFO L225 Difference]: With dead ends: 4568 [2022-01-10 13:42:21,552 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:21,555 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 13:42:21,555 INFO L933 BasicCegarLoop]: 4927 mSDtfsCounter, 4849 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:21,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4849 Valid, 4994 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:21,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.7058472553699284) internal successors, (5718), 3354 states have internal predecessors, (5718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5718 transitions. [2022-01-10 13:42:21,641 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5718 transitions. Word has length 99 [2022-01-10 13:42:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:21,641 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5718 transitions. [2022-01-10 13:42:21,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5718 transitions. [2022-01-10 13:42:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:21,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:21,643 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:21,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:42:21,643 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 13:42:21,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:21,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1925964550, now seen corresponding path program 1 times [2022-01-10 13:42:21,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:21,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824903978] [2022-01-10 13:42:21,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:21,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:21,678 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 13:42:21,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:21,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824903978] [2022-01-10 13:42:21,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824903978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:21,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:21,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:21,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105141144] [2022-01-10 13:42:21,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:21,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:21,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:21,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:21,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:21,681 INFO L87 Difference]: Start difference. First operand 3355 states and 5718 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:21,778 INFO L93 Difference]: Finished difference Result 4567 states and 7446 transitions. [2022-01-10 13:42:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:21,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:21,786 INFO L225 Difference]: With dead ends: 4567 [2022-01-10 13:42:21,786 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:21,789 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 13:42:21,790 INFO L933 BasicCegarLoop]: 4913 mSDtfsCounter, 4835 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4835 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:21,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4835 Valid, 4979 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:21,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6986873508353222) internal successors, (5694), 3354 states have internal predecessors, (5694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5694 transitions. [2022-01-10 13:42:21,878 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5694 transitions. Word has length 99 [2022-01-10 13:42:21,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:21,879 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5694 transitions. [2022-01-10 13:42:21,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:21,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5694 transitions. [2022-01-10 13:42:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:21,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:21,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:21,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:42:21,880 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 13:42:21,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:21,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176999, now seen corresponding path program 1 times [2022-01-10 13:42:21,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:21,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671841474] [2022-01-10 13:42:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:21,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:21,922 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 13:42:21,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:21,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671841474] [2022-01-10 13:42:21,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671841474] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:21,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:21,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:21,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145043079] [2022-01-10 13:42:21,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:21,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:21,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:21,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:21,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:21,924 INFO L87 Difference]: Start difference. First operand 3355 states and 5694 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:22,016 INFO L93 Difference]: Finished difference Result 4566 states and 7397 transitions. [2022-01-10 13:42:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:22,031 INFO L225 Difference]: With dead ends: 4566 [2022-01-10 13:42:22,032 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:22,034 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 13:42:22,036 INFO L933 BasicCegarLoop]: 4899 mSDtfsCounter, 4821 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4821 SdHoareTripleChecker+Valid, 4964 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:22,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4821 Valid, 4964 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.691527446300716) internal successors, (5670), 3354 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5670 transitions. [2022-01-10 13:42:22,126 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5670 transitions. Word has length 99 [2022-01-10 13:42:22,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:22,126 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5670 transitions. [2022-01-10 13:42:22,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5670 transitions. [2022-01-10 13:42:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:22,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:22,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:22,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:42:22,130 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 13:42:22,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1730026952, now seen corresponding path program 1 times [2022-01-10 13:42:22,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:22,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873365919] [2022-01-10 13:42:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:22,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:22,162 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 13:42:22,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:22,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873365919] [2022-01-10 13:42:22,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873365919] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:22,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:22,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:22,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337501071] [2022-01-10 13:42:22,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:22,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:22,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:22,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:22,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:22,164 INFO L87 Difference]: Start difference. First operand 3355 states and 5670 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:22,258 INFO L93 Difference]: Finished difference Result 4565 states and 7348 transitions. [2022-01-10 13:42:22,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:22,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:22,265 INFO L225 Difference]: With dead ends: 4565 [2022-01-10 13:42:22,265 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:22,268 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 13:42:22,268 INFO L933 BasicCegarLoop]: 4885 mSDtfsCounter, 4807 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:22,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4807 Valid, 4949 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:22,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6843675417661097) internal successors, (5646), 3354 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5646 transitions. [2022-01-10 13:42:22,357 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5646 transitions. Word has length 99 [2022-01-10 13:42:22,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:22,357 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5646 transitions. [2022-01-10 13:42:22,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5646 transitions. [2022-01-10 13:42:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:22,359 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:22,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:22,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:42:22,359 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 13:42:22,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:22,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1258729864, now seen corresponding path program 1 times [2022-01-10 13:42:22,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:22,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086031438] [2022-01-10 13:42:22,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:22,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:22,398 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 13:42:22,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:22,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086031438] [2022-01-10 13:42:22,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086031438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:22,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:22,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:22,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470580933] [2022-01-10 13:42:22,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:22,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:22,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:22,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:22,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:22,400 INFO L87 Difference]: Start difference. First operand 3355 states and 5646 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:22,477 INFO L93 Difference]: Finished difference Result 4564 states and 7299 transitions. [2022-01-10 13:42:22,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:22,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:22,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:22,483 INFO L225 Difference]: With dead ends: 4564 [2022-01-10 13:42:22,483 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:22,485 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 13:42:22,486 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4793 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4793 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:22,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4793 Valid, 4934 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6772076372315037) internal successors, (5622), 3354 states have internal predecessors, (5622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5622 transitions. [2022-01-10 13:42:22,546 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5622 transitions. Word has length 99 [2022-01-10 13:42:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:22,546 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5622 transitions. [2022-01-10 13:42:22,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5622 transitions. [2022-01-10 13:42:22,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:22,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:22,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:22,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:42:22,547 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 13:42:22,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:22,547 INFO L85 PathProgramCache]: Analyzing trace with hash 538191256, now seen corresponding path program 1 times [2022-01-10 13:42:22,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:22,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261703267] [2022-01-10 13:42:22,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:22,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:22,570 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 13:42:22,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:22,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261703267] [2022-01-10 13:42:22,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261703267] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:22,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:22,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:22,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640508863] [2022-01-10 13:42:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:22,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:22,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:22,572 INFO L87 Difference]: Start difference. First operand 3355 states and 5622 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:22,651 INFO L93 Difference]: Finished difference Result 4563 states and 7250 transitions. [2022-01-10 13:42:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:22,657 INFO L225 Difference]: With dead ends: 4563 [2022-01-10 13:42:22,657 INFO L226 Difference]: Without dead ends: 3355 [2022-01-10 13:42:22,659 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 13:42:22,660 INFO L933 BasicCegarLoop]: 4857 mSDtfsCounter, 4779 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4779 SdHoareTripleChecker+Valid, 4919 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:22,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4779 Valid, 4919 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:22,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-01-10 13:42:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 3355. [2022-01-10 13:42:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 3352 states have (on average 1.6700477326968974) internal successors, (5598), 3354 states have internal predecessors, (5598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 5598 transitions. [2022-01-10 13:42:22,722 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 5598 transitions. Word has length 99 [2022-01-10 13:42:22,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:22,722 INFO L470 AbstractCegarLoop]: Abstraction has 3355 states and 5598 transitions. [2022-01-10 13:42:22,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 5598 transitions. [2022-01-10 13:42:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:22,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:22,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:22,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:42:22,723 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 13:42:22,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1446366601, now seen corresponding path program 1 times [2022-01-10 13:42:22,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:22,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339738965] [2022-01-10 13:42:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:22,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:22,769 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 13:42:22,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:22,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339738965] [2022-01-10 13:42:22,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339738965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:22,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:22,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:42:22,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438589862] [2022-01-10 13:42:22,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:22,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:42:22,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:22,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:42:22,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:42:22,770 INFO L87 Difference]: Start difference. First operand 3355 states and 5598 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:22,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:22,965 INFO L93 Difference]: Finished difference Result 5183 states and 8069 transitions. [2022-01-10 13:42:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:42:22,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:22,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:22,972 INFO L225 Difference]: With dead ends: 5183 [2022-01-10 13:42:22,972 INFO L226 Difference]: Without dead ends: 3989 [2022-01-10 13:42:22,974 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 13:42:22,975 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 2439 mSDsluCounter, 13248 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 18179 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:22,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2439 Valid, 18179 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:42:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-01-10 13:42:23,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3361. [2022-01-10 13:42:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3358 states have (on average 1.6640857653365098) internal successors, (5588), 3360 states have internal predecessors, (5588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 5588 transitions. [2022-01-10 13:42:23,053 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 5588 transitions. Word has length 99 [2022-01-10 13:42:23,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:23,053 INFO L470 AbstractCegarLoop]: Abstraction has 3361 states and 5588 transitions. [2022-01-10 13:42:23,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 5588 transitions. [2022-01-10 13:42:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:23,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:23,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:23,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:42:23,054 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 13:42:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:23,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1681904376, now seen corresponding path program 1 times [2022-01-10 13:42:23,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:23,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644575709] [2022-01-10 13:42:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:23,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:23,092 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 13:42:23,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:23,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644575709] [2022-01-10 13:42:23,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644575709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:23,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:23,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:42:23,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97458105] [2022-01-10 13:42:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:23,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:42:23,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:23,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:42:23,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:42:23,094 INFO L87 Difference]: Start difference. First operand 3361 states and 5588 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:23,392 INFO L93 Difference]: Finished difference Result 5582 states and 8543 transitions. [2022-01-10 13:42:23,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:42:23,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:23,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:23,400 INFO L225 Difference]: With dead ends: 5582 [2022-01-10 13:42:23,401 INFO L226 Difference]: Without dead ends: 4417 [2022-01-10 13:42:23,404 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 13:42:23,405 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 1878 mSDsluCounter, 14268 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1878 SdHoareTripleChecker+Valid, 19098 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:23,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1878 Valid, 19098 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:42:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4417 states. [2022-01-10 13:42:23,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4417 to 3367. [2022-01-10 13:42:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6581450653983354) internal successors, (5578), 3366 states have internal predecessors, (5578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5578 transitions. [2022-01-10 13:42:23,529 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5578 transitions. Word has length 99 [2022-01-10 13:42:23,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:23,529 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5578 transitions. [2022-01-10 13:42:23,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5578 transitions. [2022-01-10 13:42:23,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:23,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:23,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:23,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:42:23,531 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 13:42:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:23,531 INFO L85 PathProgramCache]: Analyzing trace with hash 2032704313, now seen corresponding path program 1 times [2022-01-10 13:42:23,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:23,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896603118] [2022-01-10 13:42:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:23,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:23,573 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 13:42:23,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:23,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896603118] [2022-01-10 13:42:23,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896603118] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:23,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:23,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:23,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409182593] [2022-01-10 13:42:23,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:23,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:23,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:23,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:23,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:23,575 INFO L87 Difference]: Start difference. First operand 3367 states and 5578 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:23,676 INFO L93 Difference]: Finished difference Result 4598 states and 7175 transitions. [2022-01-10 13:42:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:23,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:23,682 INFO L225 Difference]: With dead ends: 4598 [2022-01-10 13:42:23,682 INFO L226 Difference]: Without dead ends: 3367 [2022-01-10 13:42:23,685 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 13:42:23,686 INFO L933 BasicCegarLoop]: 4843 mSDtfsCounter, 4776 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 4843 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:23,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4776 Valid, 4843 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:23,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-10 13:42:23,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-10 13:42:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6557669441141498) internal successors, (5570), 3366 states have internal predecessors, (5570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5570 transitions. [2022-01-10 13:42:23,803 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5570 transitions. Word has length 99 [2022-01-10 13:42:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:23,803 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5570 transitions. [2022-01-10 13:42:23,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5570 transitions. [2022-01-10 13:42:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:23,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:23,804 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:23,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:42:23,805 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 13:42:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:23,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1300648966, now seen corresponding path program 1 times [2022-01-10 13:42:23,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:23,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487711499] [2022-01-10 13:42:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:23,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:23,844 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 13:42:23,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487711499] [2022-01-10 13:42:23,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487711499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:23,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:23,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:23,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747597221] [2022-01-10 13:42:23,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:23,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:23,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:23,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:23,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:23,848 INFO L87 Difference]: Start difference. First operand 3367 states and 5570 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:23,946 INFO L93 Difference]: Finished difference Result 4594 states and 7155 transitions. [2022-01-10 13:42:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:23,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:23,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:23,951 INFO L225 Difference]: With dead ends: 4594 [2022-01-10 13:42:23,952 INFO L226 Difference]: Without dead ends: 3367 [2022-01-10 13:42:23,954 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 13:42:23,954 INFO L933 BasicCegarLoop]: 4838 mSDtfsCounter, 4767 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4767 SdHoareTripleChecker+Valid, 4838 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:23,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4767 Valid, 4838 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:23,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-01-10 13:42:24,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3367. [2022-01-10 13:42:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3367 states, 3364 states have (on average 1.6533888228299642) internal successors, (5562), 3366 states have internal predecessors, (5562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3367 states to 3367 states and 5562 transitions. [2022-01-10 13:42:24,056 INFO L78 Accepts]: Start accepts. Automaton has 3367 states and 5562 transitions. Word has length 99 [2022-01-10 13:42:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:24,056 INFO L470 AbstractCegarLoop]: Abstraction has 3367 states and 5562 transitions. [2022-01-10 13:42:24,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3367 states and 5562 transitions. [2022-01-10 13:42:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 13:42:24,057 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:24,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:24,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:42:24,058 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 13:42:24,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash -55884485, now seen corresponding path program 1 times [2022-01-10 13:42:24,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:24,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213766431] [2022-01-10 13:42:24,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:24,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:24,119 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 13:42:24,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:24,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213766431] [2022-01-10 13:42:24,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213766431] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:24,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:24,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:42:24,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576237403] [2022-01-10 13:42:24,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:24,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:24,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:24,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:24,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:24,120 INFO L87 Difference]: Start difference. First operand 3367 states and 5562 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:24,323 INFO L93 Difference]: Finished difference Result 5702 states and 8572 transitions. [2022-01-10 13:42:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 13:42:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:24,330 INFO L225 Difference]: With dead ends: 5702 [2022-01-10 13:42:24,330 INFO L226 Difference]: Without dead ends: 4484 [2022-01-10 13:42:24,332 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 13:42:24,332 INFO L933 BasicCegarLoop]: 4830 mSDtfsCounter, 4708 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4708 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:24,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4708 Valid, 5582 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:24,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2022-01-10 13:42:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4382. [2022-01-10 13:42:24,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4382 states, 4379 states have (on average 1.5656542589632336) internal successors, (6856), 4381 states have internal predecessors, (6856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4382 states to 4382 states and 6856 transitions. [2022-01-10 13:42:24,458 INFO L78 Accepts]: Start accepts. Automaton has 4382 states and 6856 transitions. Word has length 99 [2022-01-10 13:42:24,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:24,459 INFO L470 AbstractCegarLoop]: Abstraction has 4382 states and 6856 transitions. [2022-01-10 13:42:24,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4382 states and 6856 transitions. [2022-01-10 13:42:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 13:42:24,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:24,461 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:24,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:42:24,462 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 13:42:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:24,462 INFO L85 PathProgramCache]: Analyzing trace with hash -765661067, now seen corresponding path program 1 times [2022-01-10 13:42:24,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:24,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114476647] [2022-01-10 13:42:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:24,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:24,506 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 13:42:24,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:24,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114476647] [2022-01-10 13:42:24,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114476647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:24,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:24,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:24,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235766180] [2022-01-10 13:42:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:24,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:24,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:24,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:24,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:24,508 INFO L87 Difference]: Start difference. First operand 4382 states and 6856 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:24,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:24,769 INFO L93 Difference]: Finished difference Result 8703 states and 12410 transitions. [2022-01-10 13:42:24,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:24,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-01-10 13:42:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:24,779 INFO L225 Difference]: With dead ends: 8703 [2022-01-10 13:42:24,779 INFO L226 Difference]: Without dead ends: 6476 [2022-01-10 13:42:24,783 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 13:42:24,784 INFO L933 BasicCegarLoop]: 4827 mSDtfsCounter, 4734 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4734 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:24,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4734 Valid, 5579 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2022-01-10 13:42:25,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 6300. [2022-01-10 13:42:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 6297 states have (on average 1.4781642051770685) internal successors, (9308), 6299 states have internal predecessors, (9308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:25,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 9308 transitions. [2022-01-10 13:42:25,024 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 9308 transitions. Word has length 160 [2022-01-10 13:42:25,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:25,024 INFO L470 AbstractCegarLoop]: Abstraction has 6300 states and 9308 transitions. [2022-01-10 13:42:25,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:25,024 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 9308 transitions. [2022-01-10 13:42:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 13:42:25,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:25,027 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:25,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:42:25,027 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 13:42:25,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:25,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1410631733, now seen corresponding path program 1 times [2022-01-10 13:42:25,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:25,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390766846] [2022-01-10 13:42:25,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:25,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:25,071 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 13:42:25,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:25,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390766846] [2022-01-10 13:42:25,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390766846] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:25,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:25,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:25,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050687758] [2022-01-10 13:42:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:25,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:25,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:25,074 INFO L87 Difference]: Start difference. First operand 6300 states and 9308 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:25,552 INFO L93 Difference]: Finished difference Result 14205 states and 19346 transitions. [2022-01-10 13:42:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:25,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-01-10 13:42:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:25,568 INFO L225 Difference]: With dead ends: 14205 [2022-01-10 13:42:25,568 INFO L226 Difference]: Without dead ends: 10115 [2022-01-10 13:42:25,574 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 13:42:25,575 INFO L933 BasicCegarLoop]: 5242 mSDtfsCounter, 4594 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 6103 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:25,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4594 Valid, 6103 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:25,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10115 states. [2022-01-10 13:42:26,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10115 to 10111. [2022-01-10 13:42:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10111 states, 10108 states have (on average 1.3917688959240206) internal successors, (14068), 10110 states have internal predecessors, (14068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10111 states to 10111 states and 14068 transitions. [2022-01-10 13:42:26,059 INFO L78 Accepts]: Start accepts. Automaton has 10111 states and 14068 transitions. Word has length 160 [2022-01-10 13:42:26,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:26,059 INFO L470 AbstractCegarLoop]: Abstraction has 10111 states and 14068 transitions. [2022-01-10 13:42:26,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 10111 states and 14068 transitions. [2022-01-10 13:42:26,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-10 13:42:26,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:26,064 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:26,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:42:26,064 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 13:42:26,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:26,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1104997204, now seen corresponding path program 1 times [2022-01-10 13:42:26,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:26,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473198759] [2022-01-10 13:42:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:26,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:26,088 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 13:42:26,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:26,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473198759] [2022-01-10 13:42:26,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473198759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:26,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:26,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:26,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338583994] [2022-01-10 13:42:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:26,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:26,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:26,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:26,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:26,089 INFO L87 Difference]: Start difference. First operand 10111 states and 14068 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:26,508 INFO L93 Difference]: Finished difference Result 17929 states and 23974 transitions. [2022-01-10 13:42:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:26,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-01-10 13:42:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:26,524 INFO L225 Difference]: With dead ends: 17929 [2022-01-10 13:42:26,524 INFO L226 Difference]: Without dead ends: 10028 [2022-01-10 13:42:26,530 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 13:42:26,530 INFO L933 BasicCegarLoop]: 4837 mSDtfsCounter, 875 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 8795 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:26,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 8795 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2022-01-10 13:42:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 10028. [2022-01-10 13:42:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10028 states, 10025 states have (on average 1.393416458852868) internal successors, (13969), 10027 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10028 states to 10028 states and 13969 transitions. [2022-01-10 13:42:26,903 INFO L78 Accepts]: Start accepts. Automaton has 10028 states and 13969 transitions. Word has length 160 [2022-01-10 13:42:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:26,903 INFO L470 AbstractCegarLoop]: Abstraction has 10028 states and 13969 transitions. [2022-01-10 13:42:26,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 10028 states and 13969 transitions. [2022-01-10 13:42:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-10 13:42:26,907 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:26,907 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:26,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:42:26,907 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 13:42:26,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:26,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1650772127, now seen corresponding path program 1 times [2022-01-10 13:42:26,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:26,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527064439] [2022-01-10 13:42:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:26,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:26,941 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 13:42:26,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:26,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527064439] [2022-01-10 13:42:26,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527064439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:26,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:26,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:26,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325858189] [2022-01-10 13:42:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:26,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:26,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:26,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:26,943 INFO L87 Difference]: Start difference. First operand 10028 states and 13969 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:27,582 INFO L93 Difference]: Finished difference Result 25266 states and 33189 transitions. [2022-01-10 13:42:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-01-10 13:42:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:27,611 INFO L225 Difference]: With dead ends: 25266 [2022-01-10 13:42:27,611 INFO L226 Difference]: Without dead ends: 17448 [2022-01-10 13:42:27,624 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 13:42:27,625 INFO L933 BasicCegarLoop]: 5043 mSDtfsCounter, 4735 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:27,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5893 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:27,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17448 states. [2022-01-10 13:42:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17448 to 16932. [2022-01-10 13:42:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16932 states, 16929 states have (on average 1.3350463701340893) internal successors, (22601), 16931 states have internal predecessors, (22601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16932 states to 16932 states and 22601 transitions. [2022-01-10 13:42:28,505 INFO L78 Accepts]: Start accepts. Automaton has 16932 states and 22601 transitions. Word has length 161 [2022-01-10 13:42:28,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:28,506 INFO L470 AbstractCegarLoop]: Abstraction has 16932 states and 22601 transitions. [2022-01-10 13:42:28,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:28,506 INFO L276 IsEmpty]: Start isEmpty. Operand 16932 states and 22601 transitions. [2022-01-10 13:42:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-10 13:42:28,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:28,518 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:28,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:42:28,531 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 13:42:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 307592064, now seen corresponding path program 1 times [2022-01-10 13:42:28,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:28,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764976151] [2022-01-10 13:42:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:28,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:28,566 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 13:42:28,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:28,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764976151] [2022-01-10 13:42:28,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764976151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:28,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:28,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:28,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424700080] [2022-01-10 13:42:28,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:28,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:28,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:28,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:28,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:28,568 INFO L87 Difference]: Start difference. First operand 16932 states and 22601 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:29,405 INFO L93 Difference]: Finished difference Result 31616 states and 41094 transitions. [2022-01-10 13:42:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-01-10 13:42:29,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:29,431 INFO L225 Difference]: With dead ends: 31616 [2022-01-10 13:42:29,431 INFO L226 Difference]: Without dead ends: 16850 [2022-01-10 13:42:29,446 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 13:42:29,447 INFO L933 BasicCegarLoop]: 4836 mSDtfsCounter, 873 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 8794 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:29,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 8794 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:29,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16850 states. [2022-01-10 13:42:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16850 to 16850. [2022-01-10 13:42:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16850 states, 16847 states have (on average 1.3357867869650384) internal successors, (22504), 16849 states have internal predecessors, (22504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16850 states to 16850 states and 22504 transitions. [2022-01-10 13:42:30,333 INFO L78 Accepts]: Start accepts. Automaton has 16850 states and 22504 transitions. Word has length 161 [2022-01-10 13:42:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:30,333 INFO L470 AbstractCegarLoop]: Abstraction has 16850 states and 22504 transitions. [2022-01-10 13:42:30,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 16850 states and 22504 transitions. [2022-01-10 13:42:30,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-10 13:42:30,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:30,339 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:30,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:42:30,339 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 13:42:30,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:30,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1783421796, now seen corresponding path program 1 times [2022-01-10 13:42:30,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:30,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374745207] [2022-01-10 13:42:30,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:30,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:30,391 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 13:42:30,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:30,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374745207] [2022-01-10 13:42:30,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374745207] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:30,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:30,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:30,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795068639] [2022-01-10 13:42:30,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:30,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:30,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:30,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:30,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:30,393 INFO L87 Difference]: Start difference. First operand 16850 states and 22504 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:31,678 INFO L93 Difference]: Finished difference Result 45147 states and 58058 transitions. [2022-01-10 13:42:31,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:31,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-01-10 13:42:31,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:31,737 INFO L225 Difference]: With dead ends: 45147 [2022-01-10 13:42:31,738 INFO L226 Difference]: Without dead ends: 30507 [2022-01-10 13:42:31,758 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 13:42:31,759 INFO L933 BasicCegarLoop]: 5044 mSDtfsCounter, 4623 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:31,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4623 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30507 states. [2022-01-10 13:42:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30507 to 29703. [2022-01-10 13:42:33,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29703 states, 29700 states have (on average 1.2985185185185186) internal successors, (38566), 29702 states have internal predecessors, (38566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29703 states to 29703 states and 38566 transitions. [2022-01-10 13:42:33,247 INFO L78 Accepts]: Start accepts. Automaton has 29703 states and 38566 transitions. Word has length 162 [2022-01-10 13:42:33,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:33,247 INFO L470 AbstractCegarLoop]: Abstraction has 29703 states and 38566 transitions. [2022-01-10 13:42:33,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 29703 states and 38566 transitions. [2022-01-10 13:42:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-10 13:42:33,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:33,259 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:33,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:42:33,259 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 13:42:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1477787267, now seen corresponding path program 1 times [2022-01-10 13:42:33,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:33,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094933322] [2022-01-10 13:42:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:33,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:33,294 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 13:42:33,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:33,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094933322] [2022-01-10 13:42:33,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094933322] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:33,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:33,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:33,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231408556] [2022-01-10 13:42:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:33,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:33,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:33,296 INFO L87 Difference]: Start difference. First operand 29703 states and 38566 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:35,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:35,015 INFO L93 Difference]: Finished difference Result 57152 states and 73018 transitions. [2022-01-10 13:42:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:35,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-01-10 13:42:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:35,065 INFO L225 Difference]: With dead ends: 57152 [2022-01-10 13:42:35,065 INFO L226 Difference]: Without dead ends: 29622 [2022-01-10 13:42:35,100 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 13:42:35,101 INFO L933 BasicCegarLoop]: 4835 mSDtfsCounter, 871 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 8793 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:35,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 8793 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29622 states. [2022-01-10 13:42:36,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29622 to 29622. [2022-01-10 13:42:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29622 states, 29619 states have (on average 1.2988622168202844) internal successors, (38471), 29621 states have internal predecessors, (38471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:36,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29622 states to 29622 states and 38471 transitions. [2022-01-10 13:42:36,629 INFO L78 Accepts]: Start accepts. Automaton has 29622 states and 38471 transitions. Word has length 162 [2022-01-10 13:42:36,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:36,629 INFO L470 AbstractCegarLoop]: Abstraction has 29622 states and 38471 transitions. [2022-01-10 13:42:36,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 29622 states and 38471 transitions. [2022-01-10 13:42:36,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-10 13:42:36,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:36,641 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:36,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:42:36,642 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 13:42:36,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:36,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1867685166, now seen corresponding path program 1 times [2022-01-10 13:42:36,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:36,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102088145] [2022-01-10 13:42:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:36,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:36,688 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 13:42:36,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:36,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102088145] [2022-01-10 13:42:36,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102088145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:36,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:36,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:36,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268702117] [2022-01-10 13:42:36,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:36,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:36,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:36,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:36,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:36,689 INFO L87 Difference]: Start difference. First operand 29622 states and 38471 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:39,664 INFO L93 Difference]: Finished difference Result 82046 states and 104151 transitions. [2022-01-10 13:42:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:39,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2022-01-10 13:42:39,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:39,754 INFO L225 Difference]: With dead ends: 82046 [2022-01-10 13:42:39,754 INFO L226 Difference]: Without dead ends: 54634 [2022-01-10 13:42:39,782 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 13:42:39,783 INFO L933 BasicCegarLoop]: 5046 mSDtfsCounter, 4735 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:39,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5892 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54634 states. [2022-01-10 13:42:42,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54634 to 53478. [2022-01-10 13:42:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53478 states, 53475 states have (on average 1.276166432912576) internal successors, (68243), 53477 states have internal predecessors, (68243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53478 states to 53478 states and 68243 transitions. [2022-01-10 13:42:42,816 INFO L78 Accepts]: Start accepts. Automaton has 53478 states and 68243 transitions. Word has length 163 [2022-01-10 13:42:42,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:42,816 INFO L470 AbstractCegarLoop]: Abstraction has 53478 states and 68243 transitions. [2022-01-10 13:42:42,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 53478 states and 68243 transitions. [2022-01-10 13:42:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-10 13:42:42,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:42,834 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:42,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:42:42,834 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 13:42:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1326597489, now seen corresponding path program 1 times [2022-01-10 13:42:42,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:42,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168647974] [2022-01-10 13:42:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:42,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:42,880 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 13:42:42,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:42,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168647974] [2022-01-10 13:42:42,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168647974] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:42,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:42,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:42,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416884402] [2022-01-10 13:42:42,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:42,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:42,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:42,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:42,882 INFO L87 Difference]: Start difference. First operand 53478 states and 68243 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:45,874 INFO L93 Difference]: Finished difference Result 104696 states and 132366 transitions. [2022-01-10 13:42:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2022-01-10 13:42:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:45,959 INFO L225 Difference]: With dead ends: 104696 [2022-01-10 13:42:45,959 INFO L226 Difference]: Without dead ends: 53398 [2022-01-10 13:42:45,996 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 13:42:45,997 INFO L933 BasicCegarLoop]: 4834 mSDtfsCounter, 869 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 8792 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:45,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 8792 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:46,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53398 states. [2022-01-10 13:42:48,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53398 to 53398. [2022-01-10 13:42:49,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53398 states, 53395 states have (on average 1.2763367356494053) internal successors, (68150), 53397 states have internal predecessors, (68150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:49,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53398 states to 53398 states and 68150 transitions. [2022-01-10 13:42:49,110 INFO L78 Accepts]: Start accepts. Automaton has 53398 states and 68150 transitions. Word has length 163 [2022-01-10 13:42:49,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:42:49,110 INFO L470 AbstractCegarLoop]: Abstraction has 53398 states and 68150 transitions. [2022-01-10 13:42:49,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:49,110 INFO L276 IsEmpty]: Start isEmpty. Operand 53398 states and 68150 transitions. [2022-01-10 13:42:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-10 13:42:49,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:42:49,125 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:42:49,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:42:49,125 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 13:42:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:42:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1445804388, now seen corresponding path program 1 times [2022-01-10 13:42:49,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:42:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728284245] [2022-01-10 13:42:49,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:42:49,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:42:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:42:49,162 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 13:42:49,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:42:49,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728284245] [2022-01-10 13:42:49,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728284245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:42:49,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:42:49,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:42:49,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680280798] [2022-01-10 13:42:49,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:42:49,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:42:49,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:42:49,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:42:49,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:42:49,164 INFO L87 Difference]: Start difference. First operand 53398 states and 68150 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:42:54,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:42:54,275 INFO L93 Difference]: Finished difference Result 150069 states and 188948 transitions. [2022-01-10 13:42:54,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:42:54,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2022-01-10 13:42:54,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:42:54,461 INFO L225 Difference]: With dead ends: 150069 [2022-01-10 13:42:54,461 INFO L226 Difference]: Without dead ends: 98881 [2022-01-10 13:42:54,498 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 13:42:54,499 INFO L933 BasicCegarLoop]: 4992 mSDtfsCounter, 4735 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 5836 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:42:54,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 5836 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:42:54,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98881 states. [2022-01-10 13:42:59,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98881 to 97085. [2022-01-10 13:43:00,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97085 states, 97082 states have (on average 1.2621083208009725) internal successors, (122528), 97084 states have internal predecessors, (122528), 0 states have call successors, (0), 0 states 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 13:43:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97085 states to 97085 states and 122528 transitions. [2022-01-10 13:43:00,200 INFO L78 Accepts]: Start accepts. Automaton has 97085 states and 122528 transitions. Word has length 164 [2022-01-10 13:43:00,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:43:00,200 INFO L470 AbstractCegarLoop]: Abstraction has 97085 states and 122528 transitions. [2022-01-10 13:43:00,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:43:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 97085 states and 122528 transitions. [2022-01-10 13:43:00,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-10 13:43:00,227 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:43:00,227 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:43:00,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:43:00,228 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:43:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:43:00,228 INFO L85 PathProgramCache]: Analyzing trace with hash -399929799, now seen corresponding path program 1 times [2022-01-10 13:43:00,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:43:00,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310627040] [2022-01-10 13:43:00,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:43:00,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:43:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:43:00,255 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 13:43:00,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:43:00,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310627040] [2022-01-10 13:43:00,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310627040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:43:00,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:43:00,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:43:00,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587238161] [2022-01-10 13:43:00,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:43:00,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:43:00,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:43:00,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:43:00,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:43:00,256 INFO L87 Difference]: Start difference. First operand 97085 states and 122528 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 13:43:06,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:43:06,301 INFO L93 Difference]: Finished difference Result 191904 states and 240930 transitions. [2022-01-10 13:43:06,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:43:06,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 164 [2022-01-10 13:43:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:43:06,545 INFO L225 Difference]: With dead ends: 191904 [2022-01-10 13:43:06,545 INFO L226 Difference]: Without dead ends: 97006 [2022-01-10 13:43:06,611 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 13:43:06,611 INFO L933 BasicCegarLoop]: 4833 mSDtfsCounter, 867 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 8791 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 13:43:06,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [867 Valid, 8791 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:43:06,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97006 states.