/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_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:17:54,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:17:54,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:17:54,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:17:54,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:17:54,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:17:54,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:17:54,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:17:54,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:17:54,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:17:54,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:17:54,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:17:54,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:17:54,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:17:54,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:17:54,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:17:54,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:17:54,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:17:54,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:17:54,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:17:54,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:17:54,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:17:54,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:17:54,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:17:54,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:17:54,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:17:54,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:17:54,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:17:54,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:17:54,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:17:54,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:17:54,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:17:54,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:17:54,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:17:54,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:17:54,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:17:54,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:17:54,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:17:54,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:17:54,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:17:54,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:17:54,341 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 18:17:54,366 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:17:54,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:17:54,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:17:54,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:17:54,367 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:17:54,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:17:54,368 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:17:54,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:17:54,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:17:54,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:17:54,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:17:54,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:17:54,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:17:54,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:54,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:17:54,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:17:54,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:17:54,372 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:17:54,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:17:54,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:17:54,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:17:54,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:17:54,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:17:54,581 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:17:54,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2022-01-10 18:17:54,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e81896f/59bc07017bc445b69cd4df72d7d188ed/FLAGc7294f452 [2022-01-10 18:17:55,016 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:17:55,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product38.cil.c [2022-01-10 18:17:55,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e81896f/59bc07017bc445b69cd4df72d7d188ed/FLAGc7294f452 [2022-01-10 18:17:55,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4e81896f/59bc07017bc445b69cd4df72d7d188ed [2022-01-10 18:17:55,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:17:55,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:17:55,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:55,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:17:55,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:17:55,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b61b62b 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 18:17:55,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:17:55,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:55,611 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_product38.cil.c[1605,1618] [2022-01-10 18:17:55,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:55,698 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:17:55,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:17:55,704 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_product38.cil.c[1605,1618] [2022-01-10 18:17:55,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:55,773 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:17:55,785 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_product38.cil.c[1605,1618] [2022-01-10 18:17:55,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:17:55,836 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:17:55,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55 WrapperNode [2022-01-10 18:17:55,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:17:55,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:55,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:17:55,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:17:55,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,879 INFO L137 Inliner]: procedures = 58, calls = 157, calls flagged for inlining = 54, calls inlined = 85, statements flattened = 624 [2022-01-10 18:17:55,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:17:55,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:17:55,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:17:55,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:17:55,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:17:55,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:17:55,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:17:55,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:17:55,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (1/1) ... [2022-01-10 18:17:55,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:17:55,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:55,966 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 18:17:55,972 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 18:17:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:17:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:17:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:17:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:17:56,104 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:17:56,105 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:17:56,442 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:17:56,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:17:56,448 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 18:17:56,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:17:56 BoogieIcfgContainer [2022-01-10 18:17:56,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:17:56,450 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:17:56,450 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:17:56,451 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:17:56,455 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 18:17:56,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:17:56 BasicIcfg [2022-01-10 18:17:56,545 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:17:56,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:17:56,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:17:56,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:17:56,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:17:55" (1/4) ... [2022-01-10 18:17:56,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc59fe4 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 18:17:56,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:17:55" (2/4) ... [2022-01-10 18:17:56,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc59fe4 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 18:17:56,565 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 18:17:56,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc59fe4 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 18:17:56,565 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 18:17:56,566 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.cTransformedIcfg [2022-01-10 18:17:56,570 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:17:56,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 18:17:56,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:17:56,610 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 18:17:56,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 18:17:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 166 states have (on average 1.3855421686746987) internal successors, (230), 169 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 18:17:56,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:56,627 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 18:17:56,627 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 18:17:56,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:56,631 INFO L85 PathProgramCache]: Analyzing trace with hash 539637244, now seen corresponding path program 1 times [2022-01-10 18:17:56,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:56,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227073346] [2022-01-10 18:17:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:56,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:56,833 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 18:17:56,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:56,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227073346] [2022-01-10 18:17:56,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227073346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:56,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:56,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:56,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971445554] [2022-01-10 18:17:56,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:56,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:17:56,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:56,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:17:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:17:56,870 INFO L87 Difference]: Start difference. First operand has 170 states, 166 states have (on average 1.3855421686746987) internal successors, (230), 169 states have internal predecessors, (230), 0 states have call successors, (0), 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 18:17:56,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:56,915 INFO L93 Difference]: Finished difference Result 329 states and 448 transitions. [2022-01-10 18:17:56,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:17:56,918 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 18:17:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:56,927 INFO L225 Difference]: With dead ends: 329 [2022-01-10 18:17:56,928 INFO L226 Difference]: Without dead ends: 160 [2022-01-10 18:17:56,931 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 18:17:56,934 INFO L933 BasicCegarLoop]: 220 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, 220 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 18:17:56,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:56,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-01-10 18:17:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-01-10 18:17:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 159 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2022-01-10 18:17:56,983 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 21 [2022-01-10 18:17:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:56,983 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2022-01-10 18:17:56,984 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 18:17:56,985 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2022-01-10 18:17:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 18:17:56,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:56,986 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 18:17:56,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:17:56,986 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 18:17:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:56,989 INFO L85 PathProgramCache]: Analyzing trace with hash 241000786, now seen corresponding path program 1 times [2022-01-10 18:17:56,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:56,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961089671] [2022-01-10 18:17:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:56,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,088 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 18:17:57,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961089671] [2022-01-10 18:17:57,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961089671] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:57,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397959586] [2022-01-10 18:17:57,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:57,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:57,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,090 INFO L87 Difference]: Start difference. First operand 160 states and 212 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 18:17:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,125 INFO L93 Difference]: Finished difference Result 312 states and 416 transitions. [2022-01-10 18:17:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:57,130 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 18:17:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,131 INFO L225 Difference]: With dead ends: 312 [2022-01-10 18:17:57,131 INFO L226 Difference]: Without dead ends: 160 [2022-01-10 18:17:57,132 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 18:17:57,133 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 194 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:57,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 206 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:57,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-01-10 18:17:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-01-10 18:17:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 159 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:57,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2022-01-10 18:17:57,149 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 22 [2022-01-10 18:17:57,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,150 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2022-01-10 18:17:57,151 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 18:17:57,152 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2022-01-10 18:17:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 18:17:57,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,155 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 18:17:57,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:17:57,155 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 18:17:57,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1523604934, now seen corresponding path program 1 times [2022-01-10 18:17:57,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059190434] [2022-01-10 18:17:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,229 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 18:17:57,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059190434] [2022-01-10 18:17:57,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059190434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:57,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082534121] [2022-01-10 18:17:57,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:57,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:57,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:57,232 INFO L87 Difference]: Start difference. First operand 160 states and 209 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 18:17:57,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,334 INFO L93 Difference]: Finished difference Result 383 states and 500 transitions. [2022-01-10 18:17:57,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:57,334 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 18:17:57,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,336 INFO L225 Difference]: With dead ends: 383 [2022-01-10 18:17:57,336 INFO L226 Difference]: Without dead ends: 231 [2022-01-10 18:17:57,337 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 18:17:57,338 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 139 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:57,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 308 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:57,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-01-10 18:17:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2022-01-10 18:17:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 222 states have (on average 1.2927927927927927) internal successors, (287), 224 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:57,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 287 transitions. [2022-01-10 18:17:57,350 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 287 transitions. Word has length 27 [2022-01-10 18:17:57,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,351 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 287 transitions. [2022-01-10 18:17:57,351 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 18:17:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 287 transitions. [2022-01-10 18:17:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:57,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,352 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 18:17:57,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:17:57,352 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1038635349, now seen corresponding path program 1 times [2022-01-10 18:17:57,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183752115] [2022-01-10 18:17:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,445 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 18:17:57,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183752115] [2022-01-10 18:17:57,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183752115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:57,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659966081] [2022-01-10 18:17:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:57,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:57,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:57,449 INFO L87 Difference]: Start difference. First operand 225 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.6) 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 18:17:57,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,666 INFO L93 Difference]: Finished difference Result 786 states and 992 transitions. [2022-01-10 18:17:57,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:17:57,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) 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 18:17:57,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,669 INFO L225 Difference]: With dead ends: 786 [2022-01-10 18:17:57,669 INFO L226 Difference]: Without dead ends: 569 [2022-01-10 18:17:57,672 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 18:17:57,679 INFO L933 BasicCegarLoop]: 472 mSDtfsCounter, 471 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:57,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1258 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-01-10 18:17:57,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 222. [2022-01-10 18:17:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.269406392694064) internal successors, (278), 221 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2022-01-10 18:17:57,721 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 33 [2022-01-10 18:17:57,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,722 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2022-01-10 18:17:57,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) 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 18:17:57,722 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2022-01-10 18:17:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:57,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,727 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 18:17:57,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:17:57,727 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 18:17:57,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash 954829515, now seen corresponding path program 1 times [2022-01-10 18:17:57,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728979958] [2022-01-10 18:17:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,809 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 18:17:57,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728979958] [2022-01-10 18:17:57,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728979958] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:57,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299223138] [2022-01-10 18:17:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:57,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:57,811 INFO L87 Difference]: Start difference. First operand 222 states and 278 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 18:17:57,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:57,913 INFO L93 Difference]: Finished difference Result 587 states and 725 transitions. [2022-01-10 18:17:57,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:17:57,914 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 18:17:57,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:57,915 INFO L225 Difference]: With dead ends: 587 [2022-01-10 18:17:57,915 INFO L226 Difference]: Without dead ends: 373 [2022-01-10 18:17:57,916 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 18:17:57,919 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 354 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 877 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 18:17:57,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 877 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:17:57,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-01-10 18:17:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 240. [2022-01-10 18:17:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 237 states have (on average 1.248945147679325) internal successors, (296), 239 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 296 transitions. [2022-01-10 18:17:57,941 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 296 transitions. Word has length 33 [2022-01-10 18:17:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:57,942 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 296 transitions. [2022-01-10 18:17:57,942 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 18:17:57,942 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 296 transitions. [2022-01-10 18:17:57,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:57,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:57,945 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 18:17:57,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:17:57,945 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 18:17:57,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:57,945 INFO L85 PathProgramCache]: Analyzing trace with hash 449270890, now seen corresponding path program 1 times [2022-01-10 18:17:57,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:57,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455804793] [2022-01-10 18:17:57,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:57,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:57,996 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 18:17:57,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:57,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455804793] [2022-01-10 18:17:57,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455804793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:57,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:57,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:17:57,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123529303] [2022-01-10 18:17:57,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:57,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:17:57,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:57,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:17:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:17:57,997 INFO L87 Difference]: Start difference. First operand 240 states and 296 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 18:17:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,090 INFO L93 Difference]: Finished difference Result 650 states and 788 transitions. [2022-01-10 18:17:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:17:58,090 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 18:17:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,092 INFO L225 Difference]: With dead ends: 650 [2022-01-10 18:17:58,092 INFO L226 Difference]: Without dead ends: 418 [2022-01-10 18:17:58,093 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 18:17:58,094 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 315 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 641 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-01-10 18:17:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 252. [2022-01-10 18:17:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 249 states have (on average 1.2369477911646587) internal successors, (308), 251 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 18:17:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 308 transitions. [2022-01-10 18:17:58,116 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 308 transitions. Word has length 33 [2022-01-10 18:17:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,128 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 308 transitions. [2022-01-10 18:17:58,131 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 18:17:58,131 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 308 transitions. [2022-01-10 18:17:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 18:17:58,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,132 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 18:17:58,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:17:58,133 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 18:17:58,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,133 INFO L85 PathProgramCache]: Analyzing trace with hash -61263287, now seen corresponding path program 1 times [2022-01-10 18:17:58,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374015150] [2022-01-10 18:17:58,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,208 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 18:17:58,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374015150] [2022-01-10 18:17:58,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374015150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:17:58,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619735273] [2022-01-10 18:17:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:58,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:58,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:58,210 INFO L87 Difference]: Start difference. First operand 252 states and 308 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 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 18:17:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,285 INFO L93 Difference]: Finished difference Result 581 states and 706 transitions. [2022-01-10 18:17:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 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 18:17:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,287 INFO L225 Difference]: With dead ends: 581 [2022-01-10 18:17:58,287 INFO L226 Difference]: Without dead ends: 288 [2022-01-10 18:17:58,287 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 18:17:58,288 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 84 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 368 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-01-10 18:17:58,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-01-10 18:17:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 287 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 350 transitions. [2022-01-10 18:17:58,317 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 350 transitions. Word has length 33 [2022-01-10 18:17:58,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,317 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 350 transitions. [2022-01-10 18:17:58,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 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 18:17:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 350 transitions. [2022-01-10 18:17:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 18:17:58,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:58,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:17:58,318 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 18:17:58,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2011645304, now seen corresponding path program 1 times [2022-01-10 18:17:58,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157745639] [2022-01-10 18:17:58,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,427 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 18:17:58,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157745639] [2022-01-10 18:17:58,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157745639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:17:58,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039368822] [2022-01-10 18:17:58,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:17:58,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:17:58,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:17:58,429 INFO L87 Difference]: Start difference. First operand 288 states and 350 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,753 INFO L93 Difference]: Finished difference Result 1400 states and 1709 transitions. [2022-01-10 18:17:58,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 18:17:58,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-01-10 18:17:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,758 INFO L225 Difference]: With dead ends: 1400 [2022-01-10 18:17:58,758 INFO L226 Difference]: Without dead ends: 1026 [2022-01-10 18:17:58,759 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 18:17:58,760 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 921 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [921 Valid, 1386 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:17:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2022-01-10 18:17:58,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 527. [2022-01-10 18:17:58,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 524 states have (on average 1.200381679389313) internal successors, (629), 526 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 629 transitions. [2022-01-10 18:17:58,830 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 629 transitions. Word has length 42 [2022-01-10 18:17:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,831 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 629 transitions. [2022-01-10 18:17:58,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,831 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 629 transitions. [2022-01-10 18:17:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 18:17:58,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,833 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:58,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:17:58,834 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 18:17:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1686354378, now seen corresponding path program 1 times [2022-01-10 18:17:58,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872454381] [2022-01-10 18:17:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:58,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:58,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872454381] [2022-01-10 18:17:58,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872454381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:17:58,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:17:58,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:17:58,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941795688] [2022-01-10 18:17:58,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:17:58,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:17:58,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:17:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:17:58,903 INFO L87 Difference]: Start difference. First operand 527 states and 629 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:58,945 INFO L93 Difference]: Finished difference Result 527 states and 629 transitions. [2022-01-10 18:17:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:17:58,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-01-10 18:17:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:58,947 INFO L225 Difference]: With dead ends: 527 [2022-01-10 18:17:58,947 INFO L226 Difference]: Without dead ends: 252 [2022-01-10 18:17:58,948 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 18:17:58,948 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 45 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:58,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-01-10 18:17:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2022-01-10 18:17:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.2310756972111554) internal successors, (309), 251 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 309 transitions. [2022-01-10 18:17:58,974 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 309 transitions. Word has length 64 [2022-01-10 18:17:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:58,975 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 309 transitions. [2022-01-10 18:17:58,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:58,975 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 309 transitions. [2022-01-10 18:17:58,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 18:17:58,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:58,976 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:17:58,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:17:58,976 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 18:17:58,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:58,976 INFO L85 PathProgramCache]: Analyzing trace with hash -484728790, now seen corresponding path program 1 times [2022-01-10 18:17:58,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:58,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659125352] [2022-01-10 18:17:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:58,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:59,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659125352] [2022-01-10 18:17:59,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659125352] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:17:59,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209825234] [2022-01-10 18:17:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:17:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:59,043 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 18:17:59,045 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 18:17:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:59,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 18:17:59,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:17:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:17:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:17:59,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209825234] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:17:59,462 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:17:59,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-01-10 18:17:59,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023714814] [2022-01-10 18:17:59,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:17:59,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:17:59,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:17:59,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:17:59,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:17:59,464 INFO L87 Difference]: Start difference. First operand 252 states and 309 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:59,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:17:59,590 INFO L93 Difference]: Finished difference Result 628 states and 790 transitions. [2022-01-10 18:17:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:17:59,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-10 18:17:59,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:17:59,594 INFO L225 Difference]: With dead ends: 628 [2022-01-10 18:17:59,594 INFO L226 Difference]: Without dead ends: 384 [2022-01-10 18:17:59,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:17:59,595 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 164 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:17:59,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 440 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:17:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-01-10 18:17:59,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 237. [2022-01-10 18:17:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.2076271186440677) internal successors, (285), 236 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 285 transitions. [2022-01-10 18:17:59,627 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 285 transitions. Word has length 71 [2022-01-10 18:17:59,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:17:59,628 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 285 transitions. [2022-01-10 18:17:59,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:17:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 285 transitions. [2022-01-10 18:17:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 18:17:59,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:17:59,633 INFO L514 BasicCegarLoop]: trace histogram [4, 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 18:17:59,678 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 18:17:59,853 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 18:17:59,854 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 18:17:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:17:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1910915283, now seen corresponding path program 1 times [2022-01-10 18:17:59,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:17:59,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364859165] [2022-01-10 18:17:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:17:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:17:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 74 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-01-10 18:17:59,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:17:59,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364859165] [2022-01-10 18:17:59,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364859165] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:17:59,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973207325] [2022-01-10 18:17:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:17:59,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:17:59,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:17:59,945 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 18:17:59,955 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 18:18:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:00,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-10 18:18:00,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 18:18:00,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:00,467 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-10 18:18:00,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973207325] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:18:00,468 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:18:00,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 13 [2022-01-10 18:18:00,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893878038] [2022-01-10 18:18:00,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:18:00,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 18:18:00,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:00,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 18:18:00,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:18:00,469 INFO L87 Difference]: Start difference. First operand 237 states and 285 transitions. Second operand has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:01,338 INFO L93 Difference]: Finished difference Result 1591 states and 1928 transitions. [2022-01-10 18:18:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-01-10 18:18:01,338 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 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 18:18:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:01,342 INFO L225 Difference]: With dead ends: 1591 [2022-01-10 18:18:01,342 INFO L226 Difference]: Without dead ends: 1314 [2022-01-10 18:18:01,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=612, Invalid=2580, Unknown=0, NotChecked=0, Total=3192 [2022-01-10 18:18:01,343 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 1416 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:01,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1416 Valid, 1332 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:18:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-01-10 18:18:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 578. [2022-01-10 18:18:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 577 states have (on average 1.1785095320623917) internal successors, (680), 577 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 680 transitions. [2022-01-10 18:18:01,400 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 680 transitions. Word has length 128 [2022-01-10 18:18:01,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:01,401 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 680 transitions. [2022-01-10 18:18:01,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.846153846153847) internal successors, (180), 13 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 680 transitions. [2022-01-10 18:18:01,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 18:18:01,402 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:01,402 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, 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 18:18:01,423 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 18:18:01,619 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 18:18:01,620 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 18:18:01,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1791010716, now seen corresponding path program 1 times [2022-01-10 18:18:01,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:01,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382710452] [2022-01-10 18:18:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:01,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-01-10 18:18:01,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:01,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382710452] [2022-01-10 18:18:01,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382710452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:18:01,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:18:01,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:18:01,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670108992] [2022-01-10 18:18:01,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:01,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:18:01,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:01,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:18:01,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:18:01,687 INFO L87 Difference]: Start difference. First operand 578 states and 680 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:01,818 INFO L93 Difference]: Finished difference Result 1515 states and 1788 transitions. [2022-01-10 18:18:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 18:18:01,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 132 [2022-01-10 18:18:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:01,821 INFO L225 Difference]: With dead ends: 1515 [2022-01-10 18:18:01,821 INFO L226 Difference]: Without dead ends: 945 [2022-01-10 18:18:01,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 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 18:18:01,822 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 377 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:01,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 690 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:18:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-01-10 18:18:01,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 545. [2022-01-10 18:18:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.1636029411764706) internal successors, (633), 544 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 633 transitions. [2022-01-10 18:18:01,879 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 633 transitions. Word has length 132 [2022-01-10 18:18:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:01,879 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 633 transitions. [2022-01-10 18:18:01,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 633 transitions. [2022-01-10 18:18:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 18:18:01,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:01,880 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, 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 18:18:01,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:18:01,880 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 18:18:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -492671494, now seen corresponding path program 2 times [2022-01-10 18:18:01,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:01,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575459851] [2022-01-10 18:18:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:01,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 18:18:02,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:02,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575459851] [2022-01-10 18:18:02,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575459851] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:02,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005628499] [2022-01-10 18:18:02,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 18:18:02,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:18:02,004 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 18:18:02,014 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 18:18:02,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 18:18:02,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 18:18:02,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 18 conjunts are in the unsatisfiable core [2022-01-10 18:18:02,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 18:18:02,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 18:18:02,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005628499] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:02,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-10 18:18:02,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 20 [2022-01-10 18:18:02,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358769192] [2022-01-10 18:18:02,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:02,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 18:18:02,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:02,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 18:18:02,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-01-10 18:18:02,617 INFO L87 Difference]: Start difference. First operand 545 states and 633 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:02,979 INFO L93 Difference]: Finished difference Result 1731 states and 2037 transitions. [2022-01-10 18:18:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 18:18:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 132 [2022-01-10 18:18:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:02,983 INFO L225 Difference]: With dead ends: 1731 [2022-01-10 18:18:02,984 INFO L226 Difference]: Without dead ends: 1426 [2022-01-10 18:18:02,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2022-01-10 18:18:02,985 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 766 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:02,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 607 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:18:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2022-01-10 18:18:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 928. [2022-01-10 18:18:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.174757281553398) internal successors, (1089), 927 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1089 transitions. [2022-01-10 18:18:03,079 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1089 transitions. Word has length 132 [2022-01-10 18:18:03,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:03,079 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1089 transitions. [2022-01-10 18:18:03,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1089 transitions. [2022-01-10 18:18:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-10 18:18:03,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:03,081 INFO L514 BasicCegarLoop]: trace histogram [4, 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 18:18:03,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 18:18:03,295 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 18:18:03,296 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 18:18:03,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:03,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1721860722, now seen corresponding path program 3 times [2022-01-10 18:18:03,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:03,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244469831] [2022-01-10 18:18:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:03,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-10 18:18:03,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:03,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244469831] [2022-01-10 18:18:03,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244469831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:18:03,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:18:03,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:18:03,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980216368] [2022-01-10 18:18:03,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:18:03,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:18:03,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:03,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:18:03,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:18:03,344 INFO L87 Difference]: Start difference. First operand 928 states and 1089 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:03,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:03,521 INFO L93 Difference]: Finished difference Result 1971 states and 2311 transitions. [2022-01-10 18:18:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:18:03,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 134 [2022-01-10 18:18:03,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:03,524 INFO L225 Difference]: With dead ends: 1971 [2022-01-10 18:18:03,524 INFO L226 Difference]: Without dead ends: 1051 [2022-01-10 18:18:03,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 18:18:03,526 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 127 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:03,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 437 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:18:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-01-10 18:18:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 928. [2022-01-10 18:18:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 1.1672060409924487) internal successors, (1082), 927 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1082 transitions. [2022-01-10 18:18:03,627 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1082 transitions. Word has length 134 [2022-01-10 18:18:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:03,627 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 1082 transitions. [2022-01-10 18:18:03,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 18:18:03,627 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1082 transitions. [2022-01-10 18:18:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-01-10 18:18:03,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:18:03,628 INFO L514 BasicCegarLoop]: trace histogram [4, 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 18:18:03,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:18:03,629 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 18:18:03,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:18:03,629 INFO L85 PathProgramCache]: Analyzing trace with hash 865179936, now seen corresponding path program 1 times [2022-01-10 18:18:03,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:18:03,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55633289] [2022-01-10 18:18:03,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:03,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:18:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 26 proven. 106 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 18:18:03,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:18:03,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55633289] [2022-01-10 18:18:03,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55633289] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 18:18:03,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678378645] [2022-01-10 18:18:03,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:18:03,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 18:18:03,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:18:03,783 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 18:18:03,784 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 18:18:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:18:03,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 25 conjunts are in the unsatisfiable core [2022-01-10 18:18:03,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 18:18:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 65 proven. 70 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 18:18:04,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 18:18:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 77 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:18:06,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678378645] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 18:18:06,511 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 18:18:06,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 10] total 21 [2022-01-10 18:18:06,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683815728] [2022-01-10 18:18:06,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 18:18:06,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-10 18:18:06,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:18:06,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-10 18:18:06,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-01-10 18:18:06,512 INFO L87 Difference]: Start difference. First operand 928 states and 1082 transitions. Second operand has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 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 18:18:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:18:06,818 INFO L93 Difference]: Finished difference Result 1813 states and 2126 transitions. [2022-01-10 18:18:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 18:18:06,819 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 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 135 [2022-01-10 18:18:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:18:06,819 INFO L225 Difference]: With dead ends: 1813 [2022-01-10 18:18:06,819 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 18:18:06,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2022-01-10 18:18:06,823 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1063 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:18:06,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 1438 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:18:06,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 18:18:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 18:18:06,824 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 18:18:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 18:18:06,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2022-01-10 18:18:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:18:06,824 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 18:18:06,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.666666666666666) internal successors, (308), 21 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 18:18:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 18:18:06,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 18:18:06,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 18:18:06,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 18:18:06,827 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 18:18:06,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-10 18:18:07,039 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 18:18:07,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 18:18:32,892 WARN L228 SmtUtils]: Spent 22.23s on a formula simplification. DAG size of input: 300 DAG size of output: 294 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 18:18:40,877 WARN L228 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 319 DAG size of output: 315 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 18:18:52,783 WARN L228 SmtUtils]: Spent 10.04s on a formula simplification. DAG size of input: 337 DAG size of output: 332 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 18:19:02,239 WARN L228 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 279 DAG size of output: 274 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)