/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/product-lines/email_spec0_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:09:57,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:09:57,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:09:57,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:09:57,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:09:57,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:09:57,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:09:57,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:09:57,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:09:57,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:09:57,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:09:57,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:09:57,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:09:57,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:09:57,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:09:57,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:09:57,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:09:57,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:09:57,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:09:57,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:09:57,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:09:57,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:09:57,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:09:57,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:09:57,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:09:57,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:09:57,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:09:57,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:09:57,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:09:57,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:09:57,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:09:57,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:09:57,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:09:57,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:09:57,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:09:57,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:09:57,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:09:57,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:09:57,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:09:57,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:09:57,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:09:57,090 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 12:09:57,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:09:57,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:09:57,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:09:57,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:09:57,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:09:57,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:09:57,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:09:57,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:09:57,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:09:57,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:09:57,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:09:57,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:09:57,110 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:09:57,110 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:09:57,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:09:57,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:09:57,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:09:57,319 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:09:57,335 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:09:57,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c [2022-01-10 12:09:57,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9559772ad/3100e1fab902495e9ffb790d12f25430/FLAG7419693f5 [2022-01-10 12:09:58,039 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:09:58,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c [2022-01-10 12:09:58,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9559772ad/3100e1fab902495e9ffb790d12f25430/FLAG7419693f5 [2022-01-10 12:09:58,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9559772ad/3100e1fab902495e9ffb790d12f25430 [2022-01-10 12:09:58,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:09:58,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:09:58,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:09:58,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:09:58,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:09:58,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:09:58" (1/1) ... [2022-01-10 12:09:58,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16933e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:58, skipping insertion in model container [2022-01-10 12:09:58,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:09:58" (1/1) ... [2022-01-10 12:09:58,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:09:58,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:09:58,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c[5573,5586] [2022-01-10 12:09:59,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:09:59,451 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:09:59,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:09:59,497 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c[5573,5586] [2022-01-10 12:09:59,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:09:59,634 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:09:59,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product35.cil.c[5573,5586] [2022-01-10 12:09:59,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:09:59,798 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:09:59,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59 WrapperNode [2022-01-10 12:09:59,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:09:59,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:09:59,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:09:59,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:09:59,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:09:59,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,112 INFO L137 Inliner]: procedures = 139, calls = 246, calls flagged for inlining = 151, calls inlined = 468, statements flattened = 6946 [2022-01-10 12:10:00,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:10:00,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:10:00,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:10:00,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:10:00,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:10:00,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:10:00,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:10:00,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:10:00,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (1/1) ... [2022-01-10 12:10:00,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:10:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:10:00,433 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 12:10:00,465 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 12:10:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:10:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:10:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:10:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:10:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:10:00,683 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:10:00,685 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:10:02,912 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:10:02,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:10:02,924 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:10:02,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:10:02 BoogieIcfgContainer [2022-01-10 12:10:02,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:10:02,928 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:10:02,928 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:10:02,929 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:10:02,932 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:10:02" (1/1) ... [2022-01-10 12:10:03,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:10:03 BasicIcfg [2022-01-10 12:10:03,350 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:10:03,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:10:03,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:10:03,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:10:03,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:09:58" (1/4) ... [2022-01-10 12:10:03,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b388cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:10:03, skipping insertion in model container [2022-01-10 12:10:03,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:09:59" (2/4) ... [2022-01-10 12:10:03,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b388cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:10:03, skipping insertion in model container [2022-01-10 12:10:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:10:02" (3/4) ... [2022-01-10 12:10:03,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b388cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:10:03, skipping insertion in model container [2022-01-10 12:10:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:10:03" (4/4) ... [2022-01-10 12:10:03,356 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product35.cil.cTransformedIcfg [2022-01-10 12:10:03,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:10:03,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:10:03,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:10:03,452 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 12:10:03,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:10:03,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 1445 states, 1438 states have (on average 1.6592489568845619) internal successors, (2386), 1444 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states 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 12:10:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:10:03,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:03,496 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] [2022-01-10 12:10:03,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:03,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:03,500 INFO L85 PathProgramCache]: Analyzing trace with hash 502539603, now seen corresponding path program 1 times [2022-01-10 12:10:03,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:03,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828540730] [2022-01-10 12:10:03,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:03,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:03,805 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 12:10:03,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:03,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828540730] [2022-01-10 12:10:03,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828540730] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:03,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:03,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:10:03,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088877844] [2022-01-10 12:10:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:03,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:10:03,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:10:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:10:03,842 INFO L87 Difference]: Start difference. First operand has 1445 states, 1438 states have (on average 1.6592489568845619) internal successors, (2386), 1444 states have internal predecessors, (2386), 0 states have call successors, (0), 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 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 12:10:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:03,922 INFO L93 Difference]: Finished difference Result 2576 states and 4217 transitions. [2022-01-10 12:10:03,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:10:03,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2022-01-10 12:10:03,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:03,948 INFO L225 Difference]: With dead ends: 2576 [2022-01-10 12:10:03,948 INFO L226 Difference]: Without dead ends: 1345 [2022-01-10 12:10:03,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:10:03,958 INFO L933 BasicCegarLoop]: 2372 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:03,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2372 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:10:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-01-10 12:10:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1345. [2022-01-10 12:10:04,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1339 states have (on average 1.6691560866318147) internal successors, (2235), 1344 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states 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 12:10:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2235 transitions. [2022-01-10 12:10:04,064 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2235 transitions. Word has length 79 [2022-01-10 12:10:04,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:04,065 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 2235 transitions. [2022-01-10 12:10:04,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 12:10:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2235 transitions. [2022-01-10 12:10:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 12:10:04,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:04,068 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] [2022-01-10 12:10:04,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:10:04,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1669581283, now seen corresponding path program 1 times [2022-01-10 12:10:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:04,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860772660] [2022-01-10 12:10:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:04,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:04,317 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 12:10:04,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:04,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860772660] [2022-01-10 12:10:04,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860772660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:04,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:04,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:10:04,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19296935] [2022-01-10 12:10:04,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:04,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:10:04,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:04,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:10:04,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:10:04,321 INFO L87 Difference]: Start difference. First operand 1345 states and 2235 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 12:10:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:04,449 INFO L93 Difference]: Finished difference Result 2671 states and 4442 transitions. [2022-01-10 12:10:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:10:04,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-10 12:10:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:04,518 INFO L225 Difference]: With dead ends: 2671 [2022-01-10 12:10:04,518 INFO L226 Difference]: Without dead ends: 1345 [2022-01-10 12:10:04,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:10:04,520 INFO L933 BasicCegarLoop]: 2213 mSDtfsCounter, 2210 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:04,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2210 Valid, 2226 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:10:04,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2022-01-10 12:10:04,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1345. [2022-01-10 12:10:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1339 states have (on average 1.667662434652726) internal successors, (2233), 1344 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states 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 12:10:04,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2233 transitions. [2022-01-10 12:10:04,568 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2233 transitions. Word has length 80 [2022-01-10 12:10:04,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:04,569 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 2233 transitions. [2022-01-10 12:10:04,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 12:10:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2233 transitions. [2022-01-10 12:10:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 12:10:04,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:04,579 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] [2022-01-10 12:10:04,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:10:04,579 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:04,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2133645411, now seen corresponding path program 1 times [2022-01-10 12:10:04,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:04,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257078139] [2022-01-10 12:10:04,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:04,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:04,732 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 12:10:04,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:04,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257078139] [2022-01-10 12:10:04,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257078139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:04,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:04,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:10:04,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335797693] [2022-01-10 12:10:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:04,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:04,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:04,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:04,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:04,734 INFO L87 Difference]: Start difference. First operand 1345 states and 2233 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 12:10:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:05,192 INFO L93 Difference]: Finished difference Result 6593 states and 10961 transitions. [2022-01-10 12:10:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:10:05,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-01-10 12:10:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:05,212 INFO L225 Difference]: With dead ends: 6593 [2022-01-10 12:10:05,212 INFO L226 Difference]: Without dead ends: 5272 [2022-01-10 12:10:05,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:10:05,221 INFO L933 BasicCegarLoop]: 4389 mSDtfsCounter, 10948 mSDsluCounter, 6571 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10948 SdHoareTripleChecker+Valid, 10960 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:05,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10948 Valid, 10960 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:10:05,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5272 states. [2022-01-10 12:10:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5272 to 1345. [2022-01-10 12:10:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1339 states have (on average 1.6669156086631816) internal successors, (2232), 1344 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states 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 12:10:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2232 transitions. [2022-01-10 12:10:05,319 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2232 transitions. Word has length 82 [2022-01-10 12:10:05,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:05,321 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 2232 transitions. [2022-01-10 12:10:05,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 12:10:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2232 transitions. [2022-01-10 12:10:05,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 12:10:05,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:05,323 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] [2022-01-10 12:10:05,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:10:05,324 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:05,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:05,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1495765037, now seen corresponding path program 1 times [2022-01-10 12:10:05,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:05,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76840203] [2022-01-10 12:10:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:05,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:05,463 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 12:10:05,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:05,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76840203] [2022-01-10 12:10:05,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76840203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:05,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:05,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:10:05,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330069730] [2022-01-10 12:10:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:10:05,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:10:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:10:05,466 INFO L87 Difference]: Start difference. First operand 1345 states and 2232 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 12:10:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:05,551 INFO L93 Difference]: Finished difference Result 2675 states and 4442 transitions. [2022-01-10 12:10:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:10:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-01-10 12:10:05,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:05,556 INFO L225 Difference]: With dead ends: 2675 [2022-01-10 12:10:05,556 INFO L226 Difference]: Without dead ends: 1359 [2022-01-10 12:10:05,559 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 12:10:05,567 INFO L933 BasicCegarLoop]: 2246 mSDtfsCounter, 2211 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2211 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:05,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2211 Valid, 2268 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:10:05,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2022-01-10 12:10:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1345. [2022-01-10 12:10:05,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1339 states have (on average 1.666168782673637) internal successors, (2231), 1344 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states 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 12:10:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2231 transitions. [2022-01-10 12:10:05,649 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2231 transitions. Word has length 83 [2022-01-10 12:10:05,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:05,649 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 2231 transitions. [2022-01-10 12:10:05,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 12:10:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2231 transitions. [2022-01-10 12:10:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 12:10:05,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:05,654 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] [2022-01-10 12:10:05,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:10:05,655 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1080325924, now seen corresponding path program 1 times [2022-01-10 12:10:05,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:05,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412995107] [2022-01-10 12:10:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:05,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:10:05,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:05,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412995107] [2022-01-10 12:10:05,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412995107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:05,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:05,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:10:05,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094078986] [2022-01-10 12:10:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:05,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:05,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:05,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:05,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:05,792 INFO L87 Difference]: Start difference. First operand 1345 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 12:10:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:06,027 INFO L93 Difference]: Finished difference Result 3969 states and 6593 transitions. [2022-01-10 12:10:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:10:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-10 12:10:06,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:06,036 INFO L225 Difference]: With dead ends: 3969 [2022-01-10 12:10:06,036 INFO L226 Difference]: Without dead ends: 2658 [2022-01-10 12:10:06,039 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 12:10:06,039 INFO L933 BasicCegarLoop]: 2240 mSDtfsCounter, 10871 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10871 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:06,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10871 Valid, 4494 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:10:06,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2022-01-10 12:10:06,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 1345. [2022-01-10 12:10:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1339 states have (on average 1.6646751306945482) internal successors, (2229), 1344 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states 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 12:10:06,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 2229 transitions. [2022-01-10 12:10:06,169 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 2229 transitions. Word has length 84 [2022-01-10 12:10:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:06,169 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 2229 transitions. [2022-01-10 12:10:06,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states 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 12:10:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 2229 transitions. [2022-01-10 12:10:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 12:10:06,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:06,171 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] [2022-01-10 12:10:06,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:10:06,171 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:06,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:06,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1809390113, now seen corresponding path program 1 times [2022-01-10 12:10:06,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:06,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069107270] [2022-01-10 12:10:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:06,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:10:06,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:06,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069107270] [2022-01-10 12:10:06,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069107270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:06,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:06,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:10:06,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714833250] [2022-01-10 12:10:06,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:06,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:10:06,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:06,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:10:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:10:06,301 INFO L87 Difference]: Start difference. First operand 1345 states and 2229 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 12:10:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:07,379 INFO L93 Difference]: Finished difference Result 11574 states and 18914 transitions. [2022-01-10 12:10:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:10:07,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-01-10 12:10:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:07,415 INFO L225 Difference]: With dead ends: 11574 [2022-01-10 12:10:07,415 INFO L226 Difference]: Without dead ends: 10556 [2022-01-10 12:10:07,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:10:07,421 INFO L933 BasicCegarLoop]: 4579 mSDtfsCounter, 19764 mSDsluCounter, 16017 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19764 SdHoareTripleChecker+Valid, 20596 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:07,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19764 Valid, 20596 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:10:07,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10556 states. [2022-01-10 12:10:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10556 to 2207. [2022-01-10 12:10:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 2201 states have (on average 1.6674238982280782) internal successors, (3670), 2206 states have internal predecessors, (3670), 0 states have call successors, (0), 0 states 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 12:10:07,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3670 transitions. [2022-01-10 12:10:07,612 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3670 transitions. Word has length 86 [2022-01-10 12:10:07,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:07,612 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3670 transitions. [2022-01-10 12:10:07,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states 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 12:10:07,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3670 transitions. [2022-01-10 12:10:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 12:10:07,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:07,614 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] [2022-01-10 12:10:07,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:10:07,615 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1641742110, now seen corresponding path program 1 times [2022-01-10 12:10:07,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:07,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687412227] [2022-01-10 12:10:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:07,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:07,712 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 12:10:07,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:07,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687412227] [2022-01-10 12:10:07,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687412227] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:07,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:07,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:10:07,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889593050] [2022-01-10 12:10:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:07,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:07,714 INFO L87 Difference]: Start difference. First operand 2207 states and 3670 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:10:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:08,052 INFO L93 Difference]: Finished difference Result 5144 states and 8416 transitions. [2022-01-10 12:10:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:10:08,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-10 12:10:08,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:08,064 INFO L225 Difference]: With dead ends: 5144 [2022-01-10 12:10:08,064 INFO L226 Difference]: Without dead ends: 3563 [2022-01-10 12:10:08,068 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 12:10:08,068 INFO L933 BasicCegarLoop]: 2211 mSDtfsCounter, 8429 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8429 SdHoareTripleChecker+Valid, 4738 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:08,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8429 Valid, 4738 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:10:08,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2022-01-10 12:10:08,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 2207. [2022-01-10 12:10:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 2201 states have (on average 1.6656065424806905) internal successors, (3666), 2206 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states 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 12:10:08,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3666 transitions. [2022-01-10 12:10:08,234 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3666 transitions. Word has length 87 [2022-01-10 12:10:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:08,235 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3666 transitions. [2022-01-10 12:10:08,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:10:08,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3666 transitions. [2022-01-10 12:10:08,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 12:10:08,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:08,237 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] [2022-01-10 12:10:08,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:10:08,237 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:08,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:08,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1019218611, now seen corresponding path program 1 times [2022-01-10 12:10:08,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:08,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237546109] [2022-01-10 12:10:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:08,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:08,313 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 12:10:08,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:08,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237546109] [2022-01-10 12:10:08,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237546109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:08,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:08,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:10:08,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912714956] [2022-01-10 12:10:08,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:08,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:08,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:08,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:08,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:08,315 INFO L87 Difference]: Start difference. First operand 2207 states and 3666 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:10:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:08,723 INFO L93 Difference]: Finished difference Result 6498 states and 10827 transitions. [2022-01-10 12:10:08,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:10:08,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-10 12:10:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:08,734 INFO L225 Difference]: With dead ends: 6498 [2022-01-10 12:10:08,734 INFO L226 Difference]: Without dead ends: 4328 [2022-01-10 12:10:08,739 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 12:10:08,739 INFO L933 BasicCegarLoop]: 4357 mSDtfsCounter, 6618 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6618 SdHoareTripleChecker+Valid, 6537 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:08,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6618 Valid, 6537 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:10:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2022-01-10 12:10:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 2207. [2022-01-10 12:10:08,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 2201 states have (on average 1.6646978646069968) internal successors, (3664), 2206 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states 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 12:10:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3664 transitions. [2022-01-10 12:10:08,920 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3664 transitions. Word has length 87 [2022-01-10 12:10:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:08,920 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3664 transitions. [2022-01-10 12:10:08,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:10:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3664 transitions. [2022-01-10 12:10:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 12:10:08,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:08,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:10:08,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:10:08,923 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:08,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:08,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2016742099, now seen corresponding path program 1 times [2022-01-10 12:10:08,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411842139] [2022-01-10 12:10:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:08,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:10:09,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:09,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411842139] [2022-01-10 12:10:09,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411842139] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:09,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:09,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:10:09,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041072640] [2022-01-10 12:10:09,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:09,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:10:09,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:09,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:10:09,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:10:09,113 INFO L87 Difference]: Start difference. First operand 2207 states and 3664 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:10:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:11,562 INFO L93 Difference]: Finished difference Result 13162 states and 21122 transitions. [2022-01-10 12:10:11,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:10:11,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 12:10:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:11,587 INFO L225 Difference]: With dead ends: 13162 [2022-01-10 12:10:11,587 INFO L226 Difference]: Without dead ends: 11697 [2022-01-10 12:10:11,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:10:11,597 INFO L933 BasicCegarLoop]: 4138 mSDtfsCounter, 17529 mSDsluCounter, 21300 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17529 SdHoareTripleChecker+Valid, 25438 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:11,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17529 Valid, 25438 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 12:10:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11697 states. [2022-01-10 12:10:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11697 to 4125. [2022-01-10 12:10:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4119 states have (on average 1.6693372177713037) internal successors, (6876), 4124 states have internal predecessors, (6876), 0 states have call successors, (0), 0 states 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 12:10:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6876 transitions. [2022-01-10 12:10:12,011 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6876 transitions. Word has length 88 [2022-01-10 12:10:12,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:12,011 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 6876 transitions. [2022-01-10 12:10:12,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:10:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6876 transitions. [2022-01-10 12:10:12,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:10:12,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:12,015 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] [2022-01-10 12:10:12,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:10:12,016 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1449964284, now seen corresponding path program 1 times [2022-01-10 12:10:12,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:12,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039974043] [2022-01-10 12:10:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:12,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:12,113 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 12:10:12,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:12,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039974043] [2022-01-10 12:10:12,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039974043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:12,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:12,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:10:12,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960975735] [2022-01-10 12:10:12,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:12,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:10:12,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:12,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:10:12,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:10:12,115 INFO L87 Difference]: Start difference. First operand 4125 states and 6876 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:12,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:12,623 INFO L93 Difference]: Finished difference Result 7066 states and 11602 transitions. [2022-01-10 12:10:12,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:10:12,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:10:12,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:12,633 INFO L225 Difference]: With dead ends: 7066 [2022-01-10 12:10:12,634 INFO L226 Difference]: Without dead ends: 5473 [2022-01-10 12:10:12,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:12,637 INFO L933 BasicCegarLoop]: 2219 mSDtfsCounter, 4664 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 4667 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:12,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4664 Valid, 4667 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:10:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-01-10 12:10:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4125. [2022-01-10 12:10:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4119 states have (on average 1.668851663025006) internal successors, (6874), 4124 states have internal predecessors, (6874), 0 states have call successors, (0), 0 states 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 12:10:13,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6874 transitions. [2022-01-10 12:10:13,036 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6874 transitions. Word has length 89 [2022-01-10 12:10:13,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:13,036 INFO L470 AbstractCegarLoop]: Abstraction has 4125 states and 6874 transitions. [2022-01-10 12:10:13,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:13,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6874 transitions. [2022-01-10 12:10:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:10:13,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:13,041 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] [2022-01-10 12:10:13,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:10:13,041 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:13,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:13,042 INFO L85 PathProgramCache]: Analyzing trace with hash -680794269, now seen corresponding path program 1 times [2022-01-10 12:10:13,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:13,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810845858] [2022-01-10 12:10:13,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:13,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:13,160 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 12:10:13,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:13,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810845858] [2022-01-10 12:10:13,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810845858] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:13,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:13,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:10:13,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127532951] [2022-01-10 12:10:13,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:13,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:13,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:13,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:13,163 INFO L87 Difference]: Start difference. First operand 4125 states and 6874 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:14,729 INFO L93 Difference]: Finished difference Result 14786 states and 23836 transitions. [2022-01-10 12:10:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:10:14,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:10:14,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:14,751 INFO L225 Difference]: With dead ends: 14786 [2022-01-10 12:10:14,751 INFO L226 Difference]: Without dead ends: 12271 [2022-01-10 12:10:14,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:10:14,757 INFO L933 BasicCegarLoop]: 6695 mSDtfsCounter, 6418 mSDsluCounter, 12324 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6418 SdHoareTripleChecker+Valid, 19019 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:14,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6418 Valid, 19019 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:10:14,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-01-10 12:10:15,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 5612. [2022-01-10 12:10:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5612 states, 5606 states have (on average 1.6485907955761685) internal successors, (9242), 5611 states have internal predecessors, (9242), 0 states have call successors, (0), 0 states 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 12:10:15,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5612 states to 5612 states and 9242 transitions. [2022-01-10 12:10:15,227 INFO L78 Accepts]: Start accepts. Automaton has 5612 states and 9242 transitions. Word has length 89 [2022-01-10 12:10:15,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:15,227 INFO L470 AbstractCegarLoop]: Abstraction has 5612 states and 9242 transitions. [2022-01-10 12:10:15,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:15,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5612 states and 9242 transitions. [2022-01-10 12:10:15,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:10:15,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:15,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:10:15,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:10:15,232 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:15,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:15,233 INFO L85 PathProgramCache]: Analyzing trace with hash 373995905, now seen corresponding path program 1 times [2022-01-10 12:10:15,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:15,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901077435] [2022-01-10 12:10:15,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:15,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:15,381 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 12:10:15,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:15,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901077435] [2022-01-10 12:10:15,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901077435] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:15,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:15,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:10:15,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642127380] [2022-01-10 12:10:15,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:15,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:10:15,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:10:15,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:10:15,383 INFO L87 Difference]: Start difference. First operand 5612 states and 9242 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:18,573 INFO L93 Difference]: Finished difference Result 24424 states and 39190 transitions. [2022-01-10 12:10:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:10:18,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:10:18,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:18,644 INFO L225 Difference]: With dead ends: 24424 [2022-01-10 12:10:18,645 INFO L226 Difference]: Without dead ends: 21669 [2022-01-10 12:10:18,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:10:18,654 INFO L933 BasicCegarLoop]: 3551 mSDtfsCounter, 23356 mSDsluCounter, 17768 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23356 SdHoareTripleChecker+Valid, 21319 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:18,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23356 Valid, 21319 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 12:10:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21669 states. [2022-01-10 12:10:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21669 to 9520. [2022-01-10 12:10:19,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9520 states, 9514 states have (on average 1.6551397939878074) internal successors, (15747), 9519 states have internal predecessors, (15747), 0 states have call successors, (0), 0 states 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 12:10:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9520 states to 9520 states and 15747 transitions. [2022-01-10 12:10:19,510 INFO L78 Accepts]: Start accepts. Automaton has 9520 states and 15747 transitions. Word has length 89 [2022-01-10 12:10:19,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:19,510 INFO L470 AbstractCegarLoop]: Abstraction has 9520 states and 15747 transitions. [2022-01-10 12:10:19,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:19,511 INFO L276 IsEmpty]: Start isEmpty. Operand 9520 states and 15747 transitions. [2022-01-10 12:10:19,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:10:19,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:19,526 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] [2022-01-10 12:10:19,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:10:19,526 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:19,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:19,527 INFO L85 PathProgramCache]: Analyzing trace with hash 703761666, now seen corresponding path program 1 times [2022-01-10 12:10:19,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:19,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821092262] [2022-01-10 12:10:19,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:19,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:19,640 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 12:10:19,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:19,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821092262] [2022-01-10 12:10:19,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821092262] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:19,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:19,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:10:19,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767543056] [2022-01-10 12:10:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:19,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:10:19,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:10:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:10:19,642 INFO L87 Difference]: Start difference. First operand 9520 states and 15747 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:22,784 INFO L93 Difference]: Finished difference Result 35342 states and 58098 transitions. [2022-01-10 12:10:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:10:22,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:10:22,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:22,839 INFO L225 Difference]: With dead ends: 35342 [2022-01-10 12:10:22,839 INFO L226 Difference]: Without dead ends: 31772 [2022-01-10 12:10:22,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:10:22,853 INFO L933 BasicCegarLoop]: 5354 mSDtfsCounter, 13815 mSDsluCounter, 15968 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13815 SdHoareTripleChecker+Valid, 21322 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:22,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13815 Valid, 21322 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:10:22,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31772 states. [2022-01-10 12:10:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31772 to 10828. [2022-01-10 12:10:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10828 states, 10822 states have (on average 1.652189983367215) internal successors, (17880), 10827 states have internal predecessors, (17880), 0 states have call successors, (0), 0 states 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 12:10:23,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10828 states to 10828 states and 17880 transitions. [2022-01-10 12:10:23,926 INFO L78 Accepts]: Start accepts. Automaton has 10828 states and 17880 transitions. Word has length 89 [2022-01-10 12:10:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:23,927 INFO L470 AbstractCegarLoop]: Abstraction has 10828 states and 17880 transitions. [2022-01-10 12:10:23,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:23,927 INFO L276 IsEmpty]: Start isEmpty. Operand 10828 states and 17880 transitions. [2022-01-10 12:10:23,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 12:10:23,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:23,933 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] [2022-01-10 12:10:23,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:10:23,933 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:23,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1102057330, now seen corresponding path program 1 times [2022-01-10 12:10:23,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:23,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157888244] [2022-01-10 12:10:23,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:23,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:24,036 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 12:10:24,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:24,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157888244] [2022-01-10 12:10:24,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157888244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:24,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:24,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:10:24,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380400275] [2022-01-10 12:10:24,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:24,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:24,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:24,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:24,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:24,038 INFO L87 Difference]: Start difference. First operand 10828 states and 17880 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:30,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:30,023 INFO L93 Difference]: Finished difference Result 58312 states and 93600 transitions. [2022-01-10 12:10:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:10:30,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2022-01-10 12:10:30,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:30,106 INFO L225 Difference]: With dead ends: 58312 [2022-01-10 12:10:30,106 INFO L226 Difference]: Without dead ends: 51478 [2022-01-10 12:10:30,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:10:30,122 INFO L933 BasicCegarLoop]: 2300 mSDtfsCounter, 11294 mSDsluCounter, 10208 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11294 SdHoareTripleChecker+Valid, 12508 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:30,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11294 Valid, 12508 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:10:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51478 states. [2022-01-10 12:10:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51478 to 19030. [2022-01-10 12:10:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19030 states, 19024 states have (on average 1.6158536585365855) internal successors, (30740), 19029 states have internal predecessors, (30740), 0 states have call successors, (0), 0 states 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 12:10:32,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19030 states to 19030 states and 30740 transitions. [2022-01-10 12:10:32,427 INFO L78 Accepts]: Start accepts. Automaton has 19030 states and 30740 transitions. Word has length 89 [2022-01-10 12:10:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:32,428 INFO L470 AbstractCegarLoop]: Abstraction has 19030 states and 30740 transitions. [2022-01-10 12:10:32,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states 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 12:10:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 19030 states and 30740 transitions. [2022-01-10 12:10:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 12:10:32,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:32,436 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] [2022-01-10 12:10:32,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:10:32,436 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:32,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1352189857, now seen corresponding path program 1 times [2022-01-10 12:10:32,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:32,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99049542] [2022-01-10 12:10:32,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:32,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:32,521 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 12:10:32,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:32,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99049542] [2022-01-10 12:10:32,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99049542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:32,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:32,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:10:32,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445652224] [2022-01-10 12:10:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:32,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:10:32,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:32,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:10:32,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:10:32,523 INFO L87 Difference]: Start difference. First operand 19030 states and 30740 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 12:10:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:41,710 INFO L93 Difference]: Finished difference Result 84378 states and 133902 transitions. [2022-01-10 12:10:41,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:10:41,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 12:10:41,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:41,823 INFO L225 Difference]: With dead ends: 84378 [2022-01-10 12:10:41,824 INFO L226 Difference]: Without dead ends: 71562 [2022-01-10 12:10:41,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:10:41,854 INFO L933 BasicCegarLoop]: 3772 mSDtfsCounter, 7163 mSDsluCounter, 11007 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7163 SdHoareTripleChecker+Valid, 14779 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:41,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7163 Valid, 14779 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:10:41,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71562 states. [2022-01-10 12:10:44,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71562 to 19198. [2022-01-10 12:10:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19198 states, 19192 states have (on average 1.6104626927886618) internal successors, (30908), 19197 states have internal predecessors, (30908), 0 states have call successors, (0), 0 states 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 12:10:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19198 states to 19198 states and 30908 transitions. [2022-01-10 12:10:44,972 INFO L78 Accepts]: Start accepts. Automaton has 19198 states and 30908 transitions. Word has length 91 [2022-01-10 12:10:44,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:10:44,972 INFO L470 AbstractCegarLoop]: Abstraction has 19198 states and 30908 transitions. [2022-01-10 12:10:44,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 12:10:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 19198 states and 30908 transitions. [2022-01-10 12:10:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 12:10:44,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:10:44,981 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] [2022-01-10 12:10:44,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:10:44,982 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:10:44,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:10:44,982 INFO L85 PathProgramCache]: Analyzing trace with hash 593017504, now seen corresponding path program 1 times [2022-01-10 12:10:44,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:10:44,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521397203] [2022-01-10 12:10:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:10:44,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:10:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:10:45,068 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 12:10:45,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:10:45,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521397203] [2022-01-10 12:10:45,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521397203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:10:45,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:10:45,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:10:45,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362677877] [2022-01-10 12:10:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:10:45,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:10:45,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:10:45,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:10:45,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:10:45,069 INFO L87 Difference]: Start difference. First operand 19198 states and 30908 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 12:10:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:10:57,218 INFO L93 Difference]: Finished difference Result 85454 states and 134276 transitions. [2022-01-10 12:10:57,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 12:10:57,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 12:10:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:10:57,332 INFO L225 Difference]: With dead ends: 85454 [2022-01-10 12:10:57,332 INFO L226 Difference]: Without dead ends: 70310 [2022-01-10 12:10:57,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-01-10 12:10:57,358 INFO L933 BasicCegarLoop]: 2912 mSDtfsCounter, 11991 mSDsluCounter, 9750 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11991 SdHoareTripleChecker+Valid, 12662 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:10:57,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11991 Valid, 12662 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:10:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70310 states. [2022-01-10 12:11:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70310 to 21478. [2022-01-10 12:11:00,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21478 states, 21472 states have (on average 1.6061847988077496) internal successors, (34488), 21477 states have internal predecessors, (34488), 0 states have call successors, (0), 0 states 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 12:11:00,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21478 states to 21478 states and 34488 transitions. [2022-01-10 12:11:00,507 INFO L78 Accepts]: Start accepts. Automaton has 21478 states and 34488 transitions. Word has length 91 [2022-01-10 12:11:00,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:11:00,508 INFO L470 AbstractCegarLoop]: Abstraction has 21478 states and 34488 transitions. [2022-01-10 12:11:00,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states 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 12:11:00,508 INFO L276 IsEmpty]: Start isEmpty. Operand 21478 states and 34488 transitions. [2022-01-10 12:11:00,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 12:11:00,517 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:11:00,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:11:00,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:11:00,518 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:11:00,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:11:00,518 INFO L85 PathProgramCache]: Analyzing trace with hash 987271649, now seen corresponding path program 1 times [2022-01-10 12:11:00,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:11:00,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165051455] [2022-01-10 12:11:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:11:00,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:11:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:11:00,640 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 12:11:00,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:11:00,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165051455] [2022-01-10 12:11:00,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165051455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:11:00,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:11:00,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:11:00,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411200357] [2022-01-10 12:11:00,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:11:00,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:11:00,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:11:00,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:11:00,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:11:00,641 INFO L87 Difference]: Start difference. First operand 21478 states and 34488 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)