/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:17:54,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:17:54,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:17:54,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:17:54,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:17:54,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:17:54,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:17:54,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:17:54,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:17:54,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:17:54,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:17:54,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:17:54,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:17:54,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:17:54,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:17:54,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:17:54,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:17:54,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:17:54,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:17:54,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:17:54,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:17:54,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:17:54,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:17:54,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:17:54,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:17:54,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:17:54,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:17:54,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:17:54,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:17:54,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:17:54,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:17:54,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:17:54,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:17:54,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:17:54,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:17:54,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:17:54,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:17:54,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:17:54,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:17:54,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:17:54,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:17:54,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:17:55,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:17:55,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:17:55,016 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:17:55,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:17:55,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:17:55,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:17:55,017 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:17:55,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:17:55,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:17:55,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:55,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:17:55,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:17:55,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:17:55,021 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:17:55,021 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:17:55,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:17:55,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:17:55,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:17:55,261 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:17:55,262 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:17:55,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2022-01-10 18:17:55,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944368db5/552d14cbd2ef4d20b2f2e53de74d3097/FLAG4a16aa5ac [2022-01-10 18:17:55,764 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:17:55,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product39.cil.c [2022-01-10 18:17:55,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944368db5/552d14cbd2ef4d20b2f2e53de74d3097/FLAG4a16aa5ac [2022-01-10 18:17:55,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/944368db5/552d14cbd2ef4d20b2f2e53de74d3097 [2022-01-10 18:17:55,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:17:55,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:17:55,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:55,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:17:55,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:17:55,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb48f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55, skipping insertion in model container [2022-01-10 18:17:55,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:17:55,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:56,003 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/minepump_spec5_product39.cil.c[1605,1618] [2022-01-10 18:17:56,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:56,164 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:17:56,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:56,183 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/minepump_spec5_product39.cil.c[1605,1618] [2022-01-10 18:17:56,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:56,257 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:17:56,265 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/minepump_spec5_product39.cil.c[1605,1618] [2022-01-10 18:17:56,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:56,340 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:17:56,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56 WrapperNode [2022-01-10 18:17:56,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:56,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:56,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:17:56,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:17:56,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,394 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 628 [2022-01-10 18:17:56,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:56,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:17:56,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:17:56,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:17:56,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:17:56,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:17:56,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:17:56,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:17:56,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:56,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:56,445 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 18:17:56,475 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 18:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:17:56,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:17:56,586 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:17:56,587 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:17:56,863 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:17:56,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:17:56,868 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:17:56,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:56 BoogieIcfgContainer [2022-01-10 18:17:56,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:17:56,871 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:17:56,871 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:17:56,872 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:17:56,874 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:56" (1/1) ... [2022-01-10 18:17:56,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:56 BasicIcfg [2022-01-10 18:17:56,945 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:17:56,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:17:56,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:17:56,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:17:56,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:17:55" (1/4) ... [2022-01-10 18:17:56,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdcc655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:56, skipping insertion in model container [2022-01-10 18:17:56,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:56" (2/4) ... [2022-01-10 18:17:56,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdcc655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:17:56, skipping insertion in model container [2022-01-10 18:17:56,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:56" (3/4) ... [2022-01-10 18:17:56,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdcc655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:17:56, skipping insertion in model container [2022-01-10 18:17:56,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:56" (4/4) ... [2022-01-10 18:17:56,951 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product39.cil.cTransformedIcfg [2022-01-10 18:17:56,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:17:56,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:17:56,984 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:17:56,989 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 18:17:56,989 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:17:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 172 states have internal predecessors, (234), 0 states have call successors, (0), 0 states 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 18:17:57,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 18:17:57,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,008 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] [2022-01-10 18:17:57,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash -71777591, now seen corresponding path program 1 times [2022-01-10 18:17:57,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422487040] [2022-01-10 18:17:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,232 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 18:17:57,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422487040] [2022-01-10 18:17:57,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422487040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:57,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562043451] [2022-01-10 18:17:57,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:17:57,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:17:57,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:17:57,306 INFO L87 Difference]: Start difference. First operand has 173 states, 169 states have (on average 1.3846153846153846) internal successors, (234), 172 states have internal predecessors, (234), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 18:17:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,351 INFO L93 Difference]: Finished difference Result 335 states and 456 transitions. [2022-01-10 18:17:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:17:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-01-10 18:17:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,362 INFO L225 Difference]: With dead ends: 335 [2022-01-10 18:17:57,362 INFO L226 Difference]: Without dead ends: 163 [2022-01-10 18:17:57,365 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 18:17:57,368 INFO L933 BasicCegarLoop]: 224 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, 224 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 18:17:57,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-01-10 18:17:57,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2022-01-10 18:17:57,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 160 states have (on average 1.35) internal successors, (216), 162 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 18:17:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 216 transitions. [2022-01-10 18:17:57,412 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 216 transitions. Word has length 21 [2022-01-10 18:17:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,412 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 216 transitions. [2022-01-10 18:17:57,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states 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 18:17:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2022-01-10 18:17:57,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 18:17:57,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,415 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] [2022-01-10 18:17:57,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:17:57,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1533051466, now seen corresponding path program 1 times [2022-01-10 18:17:57,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198154110] [2022-01-10 18:17:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:57,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198154110] [2022-01-10 18:17:57,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198154110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:57,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874676607] [2022-01-10 18:17:57,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:57,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,528 INFO L87 Difference]: Start difference. First operand 163 states and 216 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 18:17:57,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,579 INFO L93 Difference]: Finished difference Result 388 states and 517 transitions. [2022-01-10 18:17:57,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:57,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-01-10 18:17:57,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,581 INFO L225 Difference]: With dead ends: 388 [2022-01-10 18:17:57,581 INFO L226 Difference]: Without dead ends: 233 [2022-01-10 18:17:57,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,583 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 197 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:57,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 312 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:57,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-01-10 18:17:57,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 224. [2022-01-10 18:17:57,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 221 states have (on average 1.3529411764705883) internal successors, (299), 223 states have internal predecessors, (299), 0 states have call successors, (0), 0 states 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 18:17:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 299 transitions. [2022-01-10 18:17:57,605 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 299 transitions. Word has length 22 [2022-01-10 18:17:57,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,606 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 299 transitions. [2022-01-10 18:17:57,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states 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 18:17:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 299 transitions. [2022-01-10 18:17:57,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 18:17:57,615 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,615 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] [2022-01-10 18:17:57,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:17:57,616 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:57,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,617 INFO L85 PathProgramCache]: Analyzing trace with hash -221154063, now seen corresponding path program 1 times [2022-01-10 18:17:57,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157794869] [2022-01-10 18:17:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,686 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 18:17:57,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157794869] [2022-01-10 18:17:57,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157794869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:57,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397280241] [2022-01-10 18:17:57,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:57,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:57,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,690 INFO L87 Difference]: Start difference. First operand 224 states and 299 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 18:17:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,786 INFO L93 Difference]: Finished difference Result 505 states and 672 transitions. [2022-01-10 18:17:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:57,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2022-01-10 18:17:57,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,789 INFO L225 Difference]: With dead ends: 505 [2022-01-10 18:17:57,789 INFO L226 Difference]: Without dead ends: 289 [2022-01-10 18:17:57,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,796 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 144 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:57,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 322 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-01-10 18:17:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 283. [2022-01-10 18:17:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 280 states have (on average 1.3035714285714286) internal successors, (365), 282 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 18:17:57,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 365 transitions. [2022-01-10 18:17:57,815 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 365 transitions. Word has length 27 [2022-01-10 18:17:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,815 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 365 transitions. [2022-01-10 18:17:57,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 18:17:57,816 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 365 transitions. [2022-01-10 18:17:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 18:17:57,818 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,818 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] [2022-01-10 18:17:57,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:17:57,818 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1301321646, now seen corresponding path program 1 times [2022-01-10 18:17:57,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047630309] [2022-01-10 18:17:57,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,937 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 18:17:57,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047630309] [2022-01-10 18:17:57,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047630309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:57,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922917317] [2022-01-10 18:17:57,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:57,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:57,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:57,941 INFO L87 Difference]: Start difference. First operand 283 states and 365 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 18:17:58,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,156 INFO L93 Difference]: Finished difference Result 949 states and 1204 transitions. [2022-01-10 18:17:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:17:58,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2022-01-10 18:17:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,158 INFO L225 Difference]: With dead ends: 949 [2022-01-10 18:17:58,158 INFO L226 Difference]: Without dead ends: 674 [2022-01-10 18:17:58,159 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 18:17:58,167 INFO L933 BasicCegarLoop]: 442 mSDtfsCounter, 552 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 1231 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-01-10 18:17:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 277. [2022-01-10 18:17:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2664233576642336) internal successors, (347), 276 states have internal predecessors, (347), 0 states have call successors, (0), 0 states 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 18:17:58,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 347 transitions. [2022-01-10 18:17:58,195 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 347 transitions. Word has length 32 [2022-01-10 18:17:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,195 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 347 transitions. [2022-01-10 18:17:58,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 18:17:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 347 transitions. [2022-01-10 18:17:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:58,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,196 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] [2022-01-10 18:17:58,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:17:58,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1442937070, now seen corresponding path program 1 times [2022-01-10 18:17:58,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346050155] [2022-01-10 18:17:58,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,238 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 18:17:58,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346050155] [2022-01-10 18:17:58,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346050155] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:58,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929886907] [2022-01-10 18:17:58,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:58,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:58,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:58,240 INFO L87 Difference]: Start difference. First operand 277 states and 347 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,354 INFO L93 Difference]: Finished difference Result 805 states and 997 transitions. [2022-01-10 18:17:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:17:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 18:17:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,359 INFO L225 Difference]: With dead ends: 805 [2022-01-10 18:17:58,359 INFO L226 Difference]: Without dead ends: 536 [2022-01-10 18:17:58,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 18:17:58,360 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 374 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 966 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:58,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-01-10 18:17:58,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 295. [2022-01-10 18:17:58,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 292 states have (on average 1.25) internal successors, (365), 294 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 18:17:58,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 365 transitions. [2022-01-10 18:17:58,393 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 365 transitions. Word has length 33 [2022-01-10 18:17:58,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,394 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 365 transitions. [2022-01-10 18:17:58,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,395 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 365 transitions. [2022-01-10 18:17:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:58,396 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,396 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] [2022-01-10 18:17:58,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:17:58,397 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1948495695, now seen corresponding path program 1 times [2022-01-10 18:17:58,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477937349] [2022-01-10 18:17:58,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,434 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 18:17:58,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477937349] [2022-01-10 18:17:58,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477937349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:58,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906763860] [2022-01-10 18:17:58,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:17:58,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:17:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:17:58,436 INFO L87 Difference]: Start difference. First operand 295 states and 365 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,528 INFO L93 Difference]: Finished difference Result 740 states and 909 transitions. [2022-01-10 18:17:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:17:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 18:17:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,530 INFO L225 Difference]: With dead ends: 740 [2022-01-10 18:17:58,530 INFO L226 Difference]: Without dead ends: 453 [2022-01-10 18:17:58,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 18:17:58,531 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 226 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 630 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-01-10 18:17:58,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 307. [2022-01-10 18:17:58,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 304 states have (on average 1.2401315789473684) internal successors, (377), 306 states have internal predecessors, (377), 0 states have call successors, (0), 0 states 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 18:17:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 377 transitions. [2022-01-10 18:17:58,551 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 377 transitions. Word has length 33 [2022-01-10 18:17:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,552 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 377 transitions. [2022-01-10 18:17:58,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 377 transitions. [2022-01-10 18:17:58,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:58,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,552 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] [2022-01-10 18:17:58,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:17:58,553 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1835937424, now seen corresponding path program 1 times [2022-01-10 18:17:58,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294565377] [2022-01-10 18:17:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,579 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 18:17:58,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294565377] [2022-01-10 18:17:58,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294565377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:17:58,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980422684] [2022-01-10 18:17:58,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:58,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:58,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:58,581 INFO L87 Difference]: Start difference. First operand 307 states and 377 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,590 INFO L93 Difference]: Finished difference Result 307 states and 377 transitions. [2022-01-10 18:17:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2022-01-10 18:17:58,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,591 INFO L225 Difference]: With dead ends: 307 [2022-01-10 18:17:58,591 INFO L226 Difference]: Without dead ends: 134 [2022-01-10 18:17:58,592 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 18:17:58,592 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 81 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-01-10 18:17:58,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-01-10 18:17:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.2706766917293233) internal successors, (169), 133 states have internal predecessors, (169), 0 states have call successors, (0), 0 states 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 18:17:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 169 transitions. [2022-01-10 18:17:58,601 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 169 transitions. Word has length 33 [2022-01-10 18:17:58,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,601 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 169 transitions. [2022-01-10 18:17:58,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 18:17:58,601 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 169 transitions. [2022-01-10 18:17:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 18:17:58,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,602 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] [2022-01-10 18:17:58,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:17:58,602 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 500967672, now seen corresponding path program 1 times [2022-01-10 18:17:58,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939057741] [2022-01-10 18:17:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,647 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 18:17:58,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939057741] [2022-01-10 18:17:58,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939057741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:58,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109908166] [2022-01-10 18:17:58,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:58,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:58,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:58,649 INFO L87 Difference]: Start difference. First operand 134 states and 169 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 18:17:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,675 INFO L93 Difference]: Finished difference Result 322 states and 408 transitions. [2022-01-10 18:17:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:58,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-10 18:17:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,676 INFO L225 Difference]: With dead ends: 322 [2022-01-10 18:17:58,676 INFO L226 Difference]: Without dead ends: 196 [2022-01-10 18:17:58,676 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 18:17:58,677 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 29 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 160 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-01-10 18:17:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-01-10 18:17:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.2512820512820513) internal successors, (244), 195 states have internal predecessors, (244), 0 states have call successors, (0), 0 states 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 18:17:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 244 transitions. [2022-01-10 18:17:58,694 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 244 transitions. Word has length 39 [2022-01-10 18:17:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,694 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 244 transitions. [2022-01-10 18:17:58,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 18:17:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 244 transitions. [2022-01-10 18:17:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 18:17:58,695 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,696 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] [2022-01-10 18:17:58,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:17:58,696 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1916035630, now seen corresponding path program 1 times [2022-01-10 18:17:58,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257407635] [2022-01-10 18:17:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,832 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 18:17:58,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257407635] [2022-01-10 18:17:58,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257407635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:58,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767379632] [2022-01-10 18:17:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:17:58,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:17:58,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:17:58,835 INFO L87 Difference]: Start difference. First operand 196 states and 244 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 18:17:59,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:59,075 INFO L93 Difference]: Finished difference Result 942 states and 1196 transitions. [2022-01-10 18:17:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 18:17:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-01-10 18:17:59,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:59,078 INFO L225 Difference]: With dead ends: 942 [2022-01-10 18:17:59,078 INFO L226 Difference]: Without dead ends: 816 [2022-01-10 18:17:59,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:17:59,079 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 433 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:59,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 771 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-01-10 18:17:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 333. [2022-01-10 18:17:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 332 states have (on average 1.2469879518072289) internal successors, (414), 332 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 18:17:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2022-01-10 18:17:59,138 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 41 [2022-01-10 18:17:59,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:59,138 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2022-01-10 18:17:59,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states 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 18:17:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2022-01-10 18:17:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 18:17:59,144 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:59,144 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:59,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:17:59,145 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:59,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:59,145 INFO L85 PathProgramCache]: Analyzing trace with hash 8059804, now seen corresponding path program 1 times [2022-01-10 18:17:59,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:59,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518431556] [2022-01-10 18:17:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518431556] [2022-01-10 18:17:59,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518431556] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:17:59,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922164436] [2022-01-10 18:17:59,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:17:59,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:59,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:17:59,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 18:17:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:59,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 18:17:59,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:17:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:17:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922164436] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:17:59,618 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:17:59,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-01-10 18:17:59,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78937079] [2022-01-10 18:17:59,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:17:59,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:17:59,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:59,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:17:59,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:17:59,619 INFO L87 Difference]: Start difference. First operand 333 states and 414 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 18:17:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:59,720 INFO L93 Difference]: Finished difference Result 817 states and 1030 transitions. [2022-01-10 18:17:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:17:59,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 69 [2022-01-10 18:17:59,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:59,724 INFO L225 Difference]: With dead ends: 817 [2022-01-10 18:17:59,724 INFO L226 Difference]: Without dead ends: 492 [2022-01-10 18:17:59,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:17:59,725 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 174 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:59,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 543 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:59,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-01-10 18:17:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 318. [2022-01-10 18:17:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.220820189274448) internal successors, (387), 317 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 18:17:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 387 transitions. [2022-01-10 18:17:59,754 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 387 transitions. Word has length 69 [2022-01-10 18:17:59,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:59,754 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 387 transitions. [2022-01-10 18:17:59,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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 18:17:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 387 transitions. [2022-01-10 18:17:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 18:17:59,756 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:59,756 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:59,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 18:17:59,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-10 18:17:59,975 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash 665133609, now seen corresponding path program 1 times [2022-01-10 18:17:59,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:59,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967723218] [2022-01-10 18:17:59,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 71 proven. 3 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-01-10 18:18:00,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:00,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967723218] [2022-01-10 18:18:00,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967723218] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:00,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829927153] [2022-01-10 18:18:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:00,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:00,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:18:00,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:18:00,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 18:18:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:00,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 18:18:00,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-10 18:18:00,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-10 18:18:00,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829927153] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:18:00,593 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:18:00,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 13 [2022-01-10 18:18:00,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973887978] [2022-01-10 18:18:00,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:18:00,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 18:18:00,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:00,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 18:18:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:18:00,595 INFO L87 Difference]: Start difference. First operand 318 states and 387 transitions. Second operand has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 18:18:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:01,870 INFO L93 Difference]: Finished difference Result 3780 states and 4666 transitions. [2022-01-10 18:18:01,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-01-10 18:18:01,871 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 0 states have call successors, (0), 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 124 [2022-01-10 18:18:01,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:01,879 INFO L225 Difference]: With dead ends: 3780 [2022-01-10 18:18:01,879 INFO L226 Difference]: Without dead ends: 3172 [2022-01-10 18:18:01,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1463 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=881, Invalid=3811, Unknown=0, NotChecked=0, Total=4692 [2022-01-10 18:18:01,881 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 2038 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:01,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2038 Valid, 1823 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:18:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-01-10 18:18:01,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 822. [2022-01-10 18:18:01,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 821 states have (on average 1.1985383678440926) internal successors, (984), 821 states have internal predecessors, (984), 0 states have call successors, (0), 0 states 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 18:18:01,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 984 transitions. [2022-01-10 18:18:01,967 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 984 transitions. Word has length 124 [2022-01-10 18:18:01,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:01,967 INFO L470 AbstractCegarLoop]: Abstraction has 822 states and 984 transitions. [2022-01-10 18:18:01,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 13 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 18:18:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 984 transitions. [2022-01-10 18:18:01,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 18:18:01,969 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:01,969 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:18:01,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 18:18:02,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-01-10 18:18:02,187 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:18:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:02,187 INFO L85 PathProgramCache]: Analyzing trace with hash -86561182, now seen corresponding path program 1 times [2022-01-10 18:18:02,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:02,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546105543] [2022-01-10 18:18:02,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:02,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:02,259 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-10 18:18:02,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546105543] [2022-01-10 18:18:02,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546105543] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:18:02,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:18:02,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:18:02,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802337010] [2022-01-10 18:18:02,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:02,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:18:02,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:02,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:18:02,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:18:02,260 INFO L87 Difference]: Start difference. First operand 822 states and 984 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 18:18:02,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:02,624 INFO L93 Difference]: Finished difference Result 2631 states and 3159 transitions. [2022-01-10 18:18:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:18:02,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 128 [2022-01-10 18:18:02,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:02,629 INFO L225 Difference]: With dead ends: 2631 [2022-01-10 18:18:02,629 INFO L226 Difference]: Without dead ends: 1817 [2022-01-10 18:18:02,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:18:02,630 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 485 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:02,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 762 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:18:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2022-01-10 18:18:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 781. [2022-01-10 18:18:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 780 states have (on average 1.1807692307692308) internal successors, (921), 780 states have internal predecessors, (921), 0 states have call successors, (0), 0 states 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 18:18:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 921 transitions. [2022-01-10 18:18:02,729 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 921 transitions. Word has length 128 [2022-01-10 18:18:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:02,730 INFO L470 AbstractCegarLoop]: Abstraction has 781 states and 921 transitions. [2022-01-10 18:18:02,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states 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 18:18:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 921 transitions. [2022-01-10 18:18:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 18:18:02,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:02,731 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:18:02,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:18:02,731 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:18:02,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:02,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2046392952, now seen corresponding path program 2 times [2022-01-10 18:18:02,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:02,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921615863] [2022-01-10 18:18:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:02,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 18:18:02,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921615863] [2022-01-10 18:18:02,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921615863] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645267314] [2022-01-10 18:18:02,859 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 18:18:02,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:02,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:18:02,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:18:02,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 18:18:03,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 18:18:03,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 18:18:03,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 18:18:03,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:03,246 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 18:18:03,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:03,558 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-01-10 18:18:03,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645267314] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:03,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-10 18:18:03,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2022-01-10 18:18:03,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880071972] [2022-01-10 18:18:03,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:03,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 18:18:03,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:03,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 18:18:03,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-01-10 18:18:03,559 INFO L87 Difference]: Start difference. First operand 781 states and 921 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 18:18:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:03,970 INFO L93 Difference]: Finished difference Result 2367 states and 2814 transitions. [2022-01-10 18:18:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 18:18:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 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 128 [2022-01-10 18:18:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:03,975 INFO L225 Difference]: With dead ends: 2367 [2022-01-10 18:18:03,975 INFO L226 Difference]: Without dead ends: 1944 [2022-01-10 18:18:03,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2022-01-10 18:18:03,978 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 765 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:03,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [765 Valid, 668 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:18:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2022-01-10 18:18:04,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1389. [2022-01-10 18:18:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 1.196685878962536) internal successors, (1661), 1388 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states 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 18:18:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1661 transitions. [2022-01-10 18:18:04,155 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1661 transitions. Word has length 128 [2022-01-10 18:18:04,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:04,156 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 1661 transitions. [2022-01-10 18:18:04,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 18:18:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1661 transitions. [2022-01-10 18:18:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 18:18:04,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:04,158 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:18:04,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-10 18:18:04,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:04,375 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:18:04,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:04,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1000272276, now seen corresponding path program 3 times [2022-01-10 18:18:04,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:04,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188385456] [2022-01-10 18:18:04,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:04,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-01-10 18:18:04,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:04,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188385456] [2022-01-10 18:18:04,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188385456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:18:04,423 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:18:04,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:18:04,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390262035] [2022-01-10 18:18:04,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:04,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:18:04,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:18:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:18:04,424 INFO L87 Difference]: Start difference. First operand 1389 states and 1661 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 18:18:04,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:04,692 INFO L93 Difference]: Finished difference Result 3217 states and 3819 transitions. [2022-01-10 18:18:04,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:18:04,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 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 130 [2022-01-10 18:18:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:04,697 INFO L225 Difference]: With dead ends: 3217 [2022-01-10 18:18:04,697 INFO L226 Difference]: Without dead ends: 1836 [2022-01-10 18:18:04,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 18:18:04,700 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 155 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:04,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 512 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:18:04,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2022-01-10 18:18:04,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1389. [2022-01-10 18:18:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 1.1880403458213256) internal successors, (1649), 1388 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states 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 18:18:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 1649 transitions. [2022-01-10 18:18:04,834 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 1649 transitions. Word has length 130 [2022-01-10 18:18:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:04,834 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 1649 transitions. [2022-01-10 18:18:04,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 18:18:04,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 1649 transitions. [2022-01-10 18:18:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 18:18:04,836 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:04,836 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:18:04,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:18:04,836 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:18:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:04,837 INFO L85 PathProgramCache]: Analyzing trace with hash -97871559, now seen corresponding path program 1 times [2022-01-10 18:18:04,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:04,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45341971] [2022-01-10 18:18:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:04,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 26 proven. 101 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 18:18:05,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45341971] [2022-01-10 18:18:05,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45341971] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:05,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176685007] [2022-01-10 18:18:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:05,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:05,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:18:05,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 18:18:05,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-10 18:18:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:05,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-10 18:18:05,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 75 proven. 58 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:18:05,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:13,140 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 89 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:18:13,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176685007] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:18:13,141 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:18:13,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 14] total 25 [2022-01-10 18:18:13,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604218838] [2022-01-10 18:18:13,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:18:13,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-10 18:18:13,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:13,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-10 18:18:13,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2022-01-10 18:18:13,142 INFO L87 Difference]: Start difference. First operand 1389 states and 1649 transitions. Second operand has 25 states, 25 states have (on average 12.32) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 18:18:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:13,527 INFO L93 Difference]: Finished difference Result 2838 states and 3380 transitions. [2022-01-10 18:18:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 18:18:13,528 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.32) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 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 131 [2022-01-10 18:18:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:13,528 INFO L225 Difference]: With dead ends: 2838 [2022-01-10 18:18:13,528 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 18:18:13,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 246 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2022-01-10 18:18:13,533 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 1338 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:13,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1338 Valid, 1525 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:18:13,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 18:18:13,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 18:18:13,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 18:18:13,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 18:18:13,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2022-01-10 18:18:13,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:13,534 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 18:18:13,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.32) internal successors, (308), 25 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 18:18:13,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 18:18:13,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 18:18:13,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:18:13,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:18:13,536 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:18:13,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-01-10 18:18:13,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-01-10 18:18:13,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 18:18:39,648 WARN L228 SmtUtils]: Spent 24.47s on a formula simplification. DAG size of input: 539 DAG size of output: 537 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 18:18:57,854 WARN L228 SmtUtils]: Spent 13.26s on a formula simplification. DAG size of input: 521 DAG size of output: 519 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)