/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_SUM.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:10:04,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:10:04,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:10:04,245 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 02:10:04,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 02:10:04,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 02:10:04,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 02:10:04,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 02:10:04,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 02:10:04,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 02:10:04,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 02:10:04,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 02:10:04,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:10:04,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:10:04,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:10:04,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:10:04,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:10:04,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:10:04,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:10:04,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:10:04,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:10:04,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:10:04,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:10:04,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:10:04,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 02:10:04,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:10:04,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:10:04,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:10:04,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:10:04,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:10:04,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:10:04,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:10:04,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:10:04,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:10:04,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:10:04,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:10:04,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:10:04,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:10:04,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:10:04,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:10:04,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:10:04,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:10:04,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:10:04,332 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:10:04,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:10:04,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:10:04,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:10:04,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:10:04,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:10:04,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:10:04,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:10:04,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:10:04,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:10:04,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:10:04,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:10:04,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:10:04,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:10:04,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:10:04,338 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:10:04,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:10:04,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:10:04,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:10:04,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:10:04,549 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:10:04,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-01-11 02:10:04,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f088f44/92bd35f50dc948789973a0cf27c2b40e/FLAG39ccd7ab5 [2022-01-11 02:10:04,936 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:10:04,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-01-11 02:10:04,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f088f44/92bd35f50dc948789973a0cf27c2b40e/FLAG39ccd7ab5 [2022-01-11 02:10:05,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47f088f44/92bd35f50dc948789973a0cf27c2b40e [2022-01-11 02:10:05,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:10:05,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:10:05,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:10:05,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:10:05,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:10:05,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@603bb8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05, skipping insertion in model container [2022-01-11 02:10:05,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:10:05,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:10:05,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2022-01-11 02:10:05,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:10:05,574 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:10:05,584 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2022-01-11 02:10:05,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:10:05,598 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:10:05,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05 WrapperNode [2022-01-11 02:10:05,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:10:05,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:10:05,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:10:05,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:10:05,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,627 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2022-01-11 02:10:05,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:10:05,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:10:05,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:10:05,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:10:05,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:10:05,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:10:05,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:10:05,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:10:05,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:10:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:10:05,683 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) [2022-01-11 02:10:05,684 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 [2022-01-11 02:10:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:10:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:10:05,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:10:05,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:10:05,757 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:10:05,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:10:05,855 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:10:05,860 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:10:05,860 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-11 02:10:05,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:10:05 BoogieIcfgContainer [2022-01-11 02:10:05,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:10:05,862 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:10:05,862 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:10:05,863 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:10:05,885 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:10:05" (1/1) ... [2022-01-11 02:10:05,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:10:05 BasicIcfg [2022-01-11 02:10:05,949 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:10:05,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:10:05,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:10:05,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:10:05,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:10:05" (1/4) ... [2022-01-11 02:10:05,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70afc1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:10:05, skipping insertion in model container [2022-01-11 02:10:05,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:10:05" (2/4) ... [2022-01-11 02:10:05,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70afc1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:10:05, skipping insertion in model container [2022-01-11 02:10:05,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:10:05" (3/4) ... [2022-01-11 02:10:05,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70afc1fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:10:05, skipping insertion in model container [2022-01-11 02:10:05,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:10:05" (4/4) ... [2022-01-11 02:10:05,973 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.cTransformedIcfg [2022-01-11 02:10:05,983 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:10:05,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 02:10:06,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:10:06,022 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 [2022-01-11 02:10:06,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 02:10:06,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-11 02:10:06,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:10:06,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:10:06,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:10:06,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:10:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -437933584, now seen corresponding path program 1 times [2022-01-11 02:10:06,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:10:06,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387632909] [2022-01-11 02:10:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:10:06,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:10:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:10:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:06,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:10:06,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387632909] [2022-01-11 02:10:06,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387632909] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:10:06,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:10:06,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:10:06,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220129011] [2022-01-11 02:10:06,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:10:06,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:10:06,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:10:06,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:10:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:10:06,275 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:10:06,296 INFO L93 Difference]: Finished difference Result 40 states and 60 transitions. [2022-01-11 02:10:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:10:06,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-01-11 02:10:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:10:06,304 INFO L225 Difference]: With dead ends: 40 [2022-01-11 02:10:06,304 INFO L226 Difference]: Without dead ends: 17 [2022-01-11 02:10:06,307 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 [2022-01-11 02:10:06,311 INFO L933 BasicCegarLoop]: 25 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, 25 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 [2022-01-11 02:10:06,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:10:06,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-11 02:10:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-11 02:10:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 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) [2022-01-11 02:10:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-01-11 02:10:06,346 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2022-01-11 02:10:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:10:06,347 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-01-11 02:10:06,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-01-11 02:10:06,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-11 02:10:06,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:10:06,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:10:06,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:10:06,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:10:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:10:06,353 INFO L85 PathProgramCache]: Analyzing trace with hash -437903793, now seen corresponding path program 1 times [2022-01-11 02:10:06,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:10:06,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484534614] [2022-01-11 02:10:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:10:06,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:10:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:10:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:06,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:10:06,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484534614] [2022-01-11 02:10:06,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484534614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:10:06,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:10:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 02:10:06,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189778725] [2022-01-11 02:10:06,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:10:06,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 02:10:06,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:10:06,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 02:10:06,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 02:10:06,456 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:10:06,487 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2022-01-11 02:10:06,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 02:10:06,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-01-11 02:10:06,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:10:06,489 INFO L225 Difference]: With dead ends: 41 [2022-01-11 02:10:06,489 INFO L226 Difference]: Without dead ends: 26 [2022-01-11 02:10:06,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 02:10:06,494 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:10:06,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 34 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:10:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-11 02:10:06,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2022-01-11 02:10:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 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) [2022-01-11 02:10:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-01-11 02:10:06,503 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2022-01-11 02:10:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:10:06,503 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-01-11 02:10:06,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-01-11 02:10:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-11 02:10:06,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:10:06,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:10:06,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:10:06,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:10:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:10:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 110682993, now seen corresponding path program 1 times [2022-01-11 02:10:06,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:10:06,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289982006] [2022-01-11 02:10:06,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:10:06,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:10:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:10:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:06,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:10:06,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289982006] [2022-01-11 02:10:06,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289982006] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:10:06,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634783609] [2022-01-11 02:10:06,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:10:06,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:10:06,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:10:06,612 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) [2022-01-11 02:10:06,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:10:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:10:06,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 02:10:06,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:10:06,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:06,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:10:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:06,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634783609] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:10:06,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:10:06,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-11 02:10:06,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309735026] [2022-01-11 02:10:06,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:10:06,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:10:06,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:10:06,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:10:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:10:06,880 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:10:06,942 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-01-11 02:10:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:10:06,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 12 [2022-01-11 02:10:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:10:06,943 INFO L225 Difference]: With dead ends: 47 [2022-01-11 02:10:06,943 INFO L226 Difference]: Without dead ends: 31 [2022-01-11 02:10:06,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-11 02:10:06,946 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:10:06,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 73 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:10:06,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-01-11 02:10:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2022-01-11 02:10:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-01-11 02:10:06,959 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 12 [2022-01-11 02:10:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:10:06,960 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-01-11 02:10:06,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-01-11 02:10:06,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 02:10:06,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:10:06,962 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:10:06,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 02:10:07,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:10:07,188 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:10:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:10:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1665847337, now seen corresponding path program 2 times [2022-01-11 02:10:07,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:10:07,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351478830] [2022-01-11 02:10:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:10:07,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:10:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:10:07,298 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:07,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:10:07,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351478830] [2022-01-11 02:10:07,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351478830] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:10:07,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304779705] [2022-01-11 02:10:07,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 02:10:07,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:10:07,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:10:07,304 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) [2022-01-11 02:10:07,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-11 02:10:07,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 02:10:07,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:10:07,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-11 02:10:07,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:10:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:10:07,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:10:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-11 02:10:07,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304779705] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:10:07,658 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:10:07,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2022-01-11 02:10:07,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972687785] [2022-01-11 02:10:07,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:10:07,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-11 02:10:07,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:10:07,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-11 02:10:07,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-11 02:10:07,667 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:10:08,152 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-01-11 02:10:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-11 02:10:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 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 18 [2022-01-11 02:10:08,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:10:08,153 INFO L225 Difference]: With dead ends: 83 [2022-01-11 02:10:08,153 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:10:08,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=568, Unknown=0, NotChecked=0, Total=812 [2022-01-11 02:10:08,155 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 162 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:10:08,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 173 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 02:10:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:10:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:10:08,156 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) [2022-01-11 02:10:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:10:08,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-01-11 02:10:08,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:10:08,156 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:10:08,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.1875) internal successors, (35), 16 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:10:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:10:08,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:10:08,159 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 02:10:08,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-11 02:10:08,375 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,SelfDestructingSolverStorable3 [2022-01-11 02:10:08,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:10:08,697 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:10:08,697 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:10:08,698 INFO L854 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (and (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (< 0 (mod .cse0 4)) (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10)))) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4)) (not (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0))) (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0)) [2022-01-11 02:10:08,698 INFO L858 garLoopResultBuilder]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2022-01-11 02:10:08,698 INFO L854 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (and (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (< 0 (mod .cse0 4)) (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10)))) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4)) (not (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0))) (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0)) [2022-01-11 02:10:08,698 INFO L861 garLoopResultBuilder]: At program point L26(lines 12 27) the Hoare annotation is: true [2022-01-11 02:10:08,698 INFO L858 garLoopResultBuilder]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2022-01-11 02:10:08,698 INFO L854 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (and (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (< 0 (mod .cse0 4)) (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10)))) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4)) (not (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0))) (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0)) [2022-01-11 02:10:08,698 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:10:08,698 INFO L858 garLoopResultBuilder]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L854 garLoopResultBuilder]: At program point L22-3(lines 22 25) the Hoare annotation is: (or (and (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (< 0 (mod .cse0 4)) (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10)))) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4)) (not (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0))) (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 0)) [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L854 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (let ((.cse1 (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10))) (and (or .cse1 (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4294967296)) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4))) (or (< 0 (mod .cse0 4)) (not .cse1)))))) [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point L23-2(line 23) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L858 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-01-11 02:10:08,699 INFO L854 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (let ((.cse0 (+ |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 1))) (or (< (mod .cse0 4294967296) 10) (< 0 (mod .cse0 4)) (not (< |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 10)))) (< 0 (mod |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| 4)) (not (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0))) [2022-01-11 02:10:08,700 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-01-11 02:10:08,700 INFO L858 garLoopResultBuilder]: For program point L22-2(lines 22 25) no Hoare annotation was computed. [2022-01-11 02:10:08,702 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-01-11 02:10:08,703 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:10:08,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:10:08 BasicIcfg [2022-01-11 02:10:08,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 02:10:08,732 INFO L158 Benchmark]: Toolchain (without parser) took 3334.87ms. Allocated memory was 186.6MB in the beginning and 286.3MB in the end (delta: 99.6MB). Free memory was 131.0MB in the beginning and 123.1MB in the end (delta: 7.9MB). Peak memory consumption was 106.8MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,732 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 147.1MB in the end (delta: 129.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:10:08,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.06ms. Allocated memory was 186.6MB in the beginning and 286.3MB in the end (delta: 99.6MB). Free memory was 130.8MB in the beginning and 258.2MB in the end (delta: -127.4MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,733 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.27ms. Allocated memory is still 286.3MB. Free memory was 258.2MB in the beginning and 256.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,733 INFO L158 Benchmark]: Boogie Preprocessor took 19.84ms. Allocated memory is still 286.3MB. Free memory was 256.8MB in the beginning and 255.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,734 INFO L158 Benchmark]: RCFGBuilder took 212.29ms. Allocated memory is still 286.3MB. Free memory was 255.8MB in the beginning and 244.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,734 INFO L158 Benchmark]: IcfgTransformer took 86.97ms. Allocated memory is still 286.3MB. Free memory was 244.8MB in the beginning and 241.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,734 INFO L158 Benchmark]: TraceAbstraction took 2764.13ms. Allocated memory is still 286.3MB. Free memory was 241.1MB in the beginning and 123.1MB in the end (delta: 118.0MB). Peak memory consumption was 118.5MB. Max. memory is 8.0GB. [2022-01-11 02:10:08,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 147.1MB in the end (delta: 129.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 199.06ms. Allocated memory was 186.6MB in the beginning and 286.3MB in the end (delta: 99.6MB). Free memory was 130.8MB in the beginning and 258.2MB in the end (delta: -127.4MB). Peak memory consumption was 9.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.27ms. Allocated memory is still 286.3MB. Free memory was 258.2MB in the beginning and 256.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.84ms. Allocated memory is still 286.3MB. Free memory was 256.8MB in the beginning and 255.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 212.29ms. Allocated memory is still 286.3MB. Free memory was 255.8MB in the beginning and 244.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 86.97ms. Allocated memory is still 286.3MB. Free memory was 244.8MB in the beginning and 241.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * TraceAbstraction took 2764.13ms. Allocated memory is still 286.3MB. Free memory was 241.1MB in the beginning and 123.1MB in the end (delta: 118.0MB). Peak memory consumption was 118.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 305 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 218 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 87 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 36 NumberOfFragments, 196 HoareAnnotationTreeSize, 7 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 246 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 15/51 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((!~bvule32(cond, 0bv32) && ~bvult64(0bv2, v[1:0])) && ((~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) || ~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0])) || !~bvult64(v, 10bv32))) || v == 0bv32 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (!~bvule32(cond, 0bv32) && ~bvult64(0bv2, v[1:0])) && ((~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) || ~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0])) || !~bvult64(v, 10bv32)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((!~bvule32(cond, 0bv32) && ~bvult64(0bv2, v[1:0])) && ((~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) || ~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0])) || !~bvult64(v, 10bv32))) || v == 0bv32 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((!~bvule32(cond, 0bv32) && ~bvult64(0bv2, v[1:0])) && ((~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) || ~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0])) || !~bvult64(v, 10bv32))) || v == 0bv32 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0]) || !~bvult64(v, 10bv32)) && ((~bvult64(0bv2, v[1:0]) || !~bvult64(~zero_extendFrom32To33(v), 4294967296bv33)) || ~bvult64(v, 10bv32))) || ~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((!~bvule32(cond, 0bv32) && ~bvult64(0bv2, v[1:0])) && ((~bvult64(~bvadd16(~zero_extendFrom32To33(v), 1bv33)[31:0], 10bv32) || ~bvult64(0bv2, ~bvadd16(~zero_extendFrom32To33(v), 1bv33)[1:0])) || !~bvult64(v, 10bv32))) || v == 0bv32 RESULT: Ultimate proved your program to be correct! [2022-01-11 02:10:08,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...