/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/mono-crafted_11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:09:01,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:09:01,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:09:01,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 02:09:01,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:09:01,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:09:01,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:09:01,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:09:01,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:09:01,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:09:01,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:09:01,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:09:01,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:09:01,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:09:01,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:09:01,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:09:01,154 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 02:09:01,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 02:09:01,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 02:09:01,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 02:09:01,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 02:09:01,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 02:09:01,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:09:01,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:09:01,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:09:01,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:09:01,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:09:01,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:09:01,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:09:01,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:09:01,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:09:01,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:09:01,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:09:01,169 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 02:09:01,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:09:01,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:09:01,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:09:01,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:09:01,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:09:01,213 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:09:01,213 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:09:01,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:09:01,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:09:01,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:09:01,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:09:01,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:09:01,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:09:01,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:09:01,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:09:01,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:09:01,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:09:01,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:09:01,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:09:01,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:09:01,218 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:09:01,219 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:09:01,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:09:01,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:09:01,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:09:01,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:09:01,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:09:01,493 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:09:01,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/mono-crafted_11.c [2022-01-11 02:09:01,556 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49749204c/ccb25444a0a04d6cb8b09ce9a1653cd7/FLAG0a859874b [2022-01-11 02:09:01,916 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:09:01,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/mono-crafted_11.c [2022-01-11 02:09:01,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49749204c/ccb25444a0a04d6cb8b09ce9a1653cd7/FLAG0a859874b [2022-01-11 02:09:02,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49749204c/ccb25444a0a04d6cb8b09ce9a1653cd7 [2022-01-11 02:09:02,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:09:02,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:09:02,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:09:02,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:09:02,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:09:02,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79384495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02, skipping insertion in model container [2022-01-11 02:09:02,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:09:02,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:09:02,504 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/mono-crafted_11.c[319,332] [2022-01-11 02:09:02,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:09:02,545 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:09:02,556 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/mono-crafted_11.c[319,332] [2022-01-11 02:09:02,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:09:02,570 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:09:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02 WrapperNode [2022-01-11 02:09:02,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:09:02,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:09:02,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:09:02,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:09:02,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,603 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-01-11 02:09:02,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:09:02,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:09:02,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:09:02,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:09:02,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:09:02,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:09:02,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:09:02,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:09:02,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:09:02,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:02,669 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 02:09:02,694 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 02:09:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:09:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:09:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:09:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:09:02,770 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:09:02,772 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:09:02,849 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:09:02,853 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:09:02,854 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:09:02,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:09:02 BoogieIcfgContainer [2022-01-11 02:09:02,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:09:02,856 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:09:02,856 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:09:02,857 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:09:02,860 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:09:02" (1/1) ... [2022-01-11 02:09:02,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:09:02 BasicIcfg [2022-01-11 02:09:02,905 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:09:02,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:09:02,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:09:02,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:09:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:09:02" (1/4) ... [2022-01-11 02:09:02,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ee69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:09:02, skipping insertion in model container [2022-01-11 02:09:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:09:02" (2/4) ... [2022-01-11 02:09:02,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ee69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:09:02, skipping insertion in model container [2022-01-11 02:09:02,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:09:02" (3/4) ... [2022-01-11 02:09:02,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7ee69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:09:02, skipping insertion in model container [2022-01-11 02:09:02,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:09:02" (4/4) ... [2022-01-11 02:09:02,912 INFO L111 eAbstractionObserver]: Analyzing ICFG mono-crafted_11.cTransformedIcfg [2022-01-11 02:09:02,917 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:09:02,918 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 02:09:02,954 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:09:02,960 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 02:09:02,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 02:09:02,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 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 02:09:02,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 02:09:02,976 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:02,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 02:09:02,977 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:02,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:02,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1923912807, now seen corresponding path program 1 times [2022-01-11 02:09:02,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:02,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351642911] [2022-01-11 02:09:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:02,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:09:03,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:03,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351642911] [2022-01-11 02:09:03,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351642911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:09:03,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:09:03,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:09:03,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752296001] [2022-01-11 02:09:03,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:09:03,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:09:03,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:03,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:09:03,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:09:03,203 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 02:09:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:03,217 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-01-11 02:09:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:09:03,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-11 02:09:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:03,226 INFO L225 Difference]: With dead ends: 20 [2022-01-11 02:09:03,227 INFO L226 Difference]: Without dead ends: 8 [2022-01-11 02:09:03,230 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 02:09:03,235 INFO L933 BasicCegarLoop]: 13 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, 13 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 02:09:03,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:09:03,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-01-11 02:09:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-01-11 02:09:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 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 02:09:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-01-11 02:09:03,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2022-01-11 02:09:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:03,269 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-01-11 02:09:03,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 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 02:09:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-01-11 02:09:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-11 02:09:03,270 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:03,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-11 02:09:03,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:09:03,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1923942598, now seen corresponding path program 1 times [2022-01-11 02:09:03,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:03,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060565260] [2022-01-11 02:09:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:03,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:03,355 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 02:09:03,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:03,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060565260] [2022-01-11 02:09:03,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060565260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:09:03,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:09:03,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 02:09:03,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650815768] [2022-01-11 02:09:03,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:09:03,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 02:09:03,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 02:09:03,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 02:09:03,359 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 02:09:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:03,376 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2022-01-11 02:09:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 02:09:03,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-01-11 02:09:03,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:03,378 INFO L225 Difference]: With dead ends: 16 [2022-01-11 02:09:03,378 INFO L226 Difference]: Without dead ends: 10 [2022-01-11 02:09:03,378 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 02:09:03,379 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:03,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:09:03,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-11 02:09:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-11 02:09:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 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 02:09:03,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-01-11 02:09:03,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2022-01-11 02:09:03,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:03,384 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-01-11 02:09:03,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 02:09:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-01-11 02:09:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-11 02:09:03,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:03,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:09:03,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:09:03,385 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:03,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:03,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2102299688, now seen corresponding path program 1 times [2022-01-11 02:09:03,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:03,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140453993] [2022-01-11 02:09:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:03,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:03,450 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 02:09:03,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:03,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140453993] [2022-01-11 02:09:03,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140453993] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:09:03,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674695685] [2022-01-11 02:09:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:03,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:03,453 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 02:09:03,454 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 02:09:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:03,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 02:09:03,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:09:03,555 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 02:09:03,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:09:03,641 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 02:09:03,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674695685] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:09:03,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:09:03,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-01-11 02:09:03,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472422803] [2022-01-11 02:09:03,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:09:03,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 02:09:03,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:03,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 02:09:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:09:03,644 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 02:09:03,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:03,736 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2022-01-11 02:09:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:09:03,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 8 [2022-01-11 02:09:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:03,737 INFO L225 Difference]: With dead ends: 20 [2022-01-11 02:09:03,737 INFO L226 Difference]: Without dead ends: 14 [2022-01-11 02:09:03,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 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 02:09:03,739 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:03,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 21 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:09:03,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-01-11 02:09:03,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2022-01-11 02:09:03,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 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 02:09:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-01-11 02:09:03,744 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2022-01-11 02:09:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:03,744 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-01-11 02:09:03,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 02:09:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-01-11 02:09:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-11 02:09:03,745 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:03,745 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:09:03,773 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 02:09:03,968 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 02:09:03,968 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:03,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:03,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1933039853, now seen corresponding path program 1 times [2022-01-11 02:09:03,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:03,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441909380] [2022-01-11 02:09:03,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:03,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:04,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:09:04,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:04,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441909380] [2022-01-11 02:09:04,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441909380] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:09:04,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407720435] [2022-01-11 02:09:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:04,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:04,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:04,095 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 02:09:04,097 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 02:09:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:04,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-11 02:09:04,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:09:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:09:04,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:09:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:09:04,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407720435] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:09:04,361 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:09:04,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-01-11 02:09:04,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830733293] [2022-01-11 02:09:04,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:09:04,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 02:09:04,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:04,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 02:09:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-11 02:09:04,363 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 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 02:09:04,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:04,483 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2022-01-11 02:09:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 02:09:04,483 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 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 02:09:04,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:04,484 INFO L225 Difference]: With dead ends: 28 [2022-01-11 02:09:04,484 INFO L226 Difference]: Without dead ends: 21 [2022-01-11 02:09:04,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-01-11 02:09:04,486 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:04,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 28 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:09:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-11 02:09:04,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-01-11 02:09:04,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 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 02:09:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-01-11 02:09:04,491 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2022-01-11 02:09:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:04,492 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-01-11 02:09:04,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 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 02:09:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-01-11 02:09:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-11 02:09:04,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:04,493 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:09:04,510 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 02:09:04,699 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 02:09:04,700 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:04,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1781693813, now seen corresponding path program 2 times [2022-01-11 02:09:04,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:04,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023703673] [2022-01-11 02:09:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:04,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-01-11 02:09:04,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:04,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023703673] [2022-01-11 02:09:04,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023703673] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:09:04,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739850116] [2022-01-11 02:09:04,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-11 02:09:04,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:04,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:04,924 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) [2022-01-11 02:09:04,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-11 02:09:04,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-11 02:09:04,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:09:04,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-11 02:09:04,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:09:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 02:09:06,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:09:06,606 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-01-11 02:09:06,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739850116] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:09:06,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:09:06,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 16 [2022-01-11 02:09:06,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498848346] [2022-01-11 02:09:06,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:09:06,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-11 02:09:06,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:06,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-11 02:09:06,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-01-11 02:09:06,609 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 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 02:09:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:07,002 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2022-01-11 02:09:07,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-11 02:09:07,003 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 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 20 [2022-01-11 02:09:07,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:07,004 INFO L225 Difference]: With dead ends: 53 [2022-01-11 02:09:07,005 INFO L226 Difference]: Without dead ends: 44 [2022-01-11 02:09:07,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 33 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=189, Invalid=411, Unknown=0, NotChecked=0, Total=600 [2022-01-11 02:09:07,006 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:07,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 26 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 56 Invalid, 0 Unknown, 58 Unchecked, 0.1s Time] [2022-01-11 02:09:07,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-01-11 02:09:07,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2022-01-11 02:09:07,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 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 02:09:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-01-11 02:09:07,021 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 20 [2022-01-11 02:09:07,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:07,021 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-01-11 02:09:07,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 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 02:09:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-01-11 02:09:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 02:09:07,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:07,022 INFO L514 BasicCegarLoop]: trace histogram [11, 7, 4, 1, 1, 1, 1, 1, 1] [2022-01-11 02:09:07,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-11 02:09:07,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:07,236 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:07,236 INFO L85 PathProgramCache]: Analyzing trace with hash 452071040, now seen corresponding path program 3 times [2022-01-11 02:09:07,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:07,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698419865] [2022-01-11 02:09:07,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:07,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 63 proven. 42 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-11 02:09:07,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:07,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698419865] [2022-01-11 02:09:07,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698419865] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:09:07,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260249173] [2022-01-11 02:09:07,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-11 02:09:07,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:07,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:07,430 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) [2022-01-11 02:09:07,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-11 02:09:07,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-01-11 02:09:07,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:09:07,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjunts are in the unsatisfiable core [2022-01-11 02:09:07,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:09:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-01-11 02:09:12,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:09:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-01-11 02:09:12,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260249173] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:09:12,454 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:09:12,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 8] total 19 [2022-01-11 02:09:12,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848514508] [2022-01-11 02:09:12,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:09:12,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-11 02:09:12,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:12,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-11 02:09:12,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=247, Unknown=2, NotChecked=0, Total=342 [2022-01-11 02:09:12,456 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:09:25,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:25,462 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2022-01-11 02:09:25,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-11 02:09:25,462 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-11 02:09:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:25,463 INFO L225 Difference]: With dead ends: 77 [2022-01-11 02:09:25,463 INFO L226 Difference]: Without dead ends: 52 [2022-01-11 02:09:25,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=217, Invalid=535, Unknown=4, NotChecked=0, Total=756 [2022-01-11 02:09:25,465 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:25,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 117 Invalid, 0 Unknown, 35 Unchecked, 0.2s Time] [2022-01-11 02:09:25,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-01-11 02:09:25,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2022-01-11 02:09:25,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.2727272727272727) internal successors, (56), 44 states have internal predecessors, (56), 0 states have call successors, (0), 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 02:09:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-01-11 02:09:25,481 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 28 [2022-01-11 02:09:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:25,481 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-01-11 02:09:25,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 19 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:09:25,482 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-01-11 02:09:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-11 02:09:25,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:09:25,483 INFO L514 BasicCegarLoop]: trace histogram [15, 8, 7, 1, 1, 1, 1, 1, 1] [2022-01-11 02:09:25,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-11 02:09:25,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:25,703 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:09:25,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:09:25,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1023103435, now seen corresponding path program 4 times [2022-01-11 02:09:25,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:09:25,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959186804] [2022-01-11 02:09:25,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:09:25,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:09:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:09:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 120 proven. 56 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-11 02:09:25,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:09:25,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959186804] [2022-01-11 02:09:25,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959186804] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-11 02:09:25,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234095803] [2022-01-11 02:09:25,917 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-11 02:09:25,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:25,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:09:25,918 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-11 02:09:25,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-11 02:09:25,973 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-11 02:09:25,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-11 02:09:25,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-11 02:09:25,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:09:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-01-11 02:09:26,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:09:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 135 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-01-11 02:09:26,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234095803] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:09:26,262 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-11 02:09:26,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-01-11 02:09:26,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507831459] [2022-01-11 02:09:26,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-11 02:09:26,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-11 02:09:26,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:09:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-11 02:09:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-01-11 02:09:26,265 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:09:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:09:26,610 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2022-01-11 02:09:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-11 02:09:26,614 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 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 36 [2022-01-11 02:09:26,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:09:26,614 INFO L225 Difference]: With dead ends: 53 [2022-01-11 02:09:26,614 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:09:26,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2022-01-11 02:09:26,615 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 02:09:26,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 02:09:26,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:09:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:09:26,616 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 02:09:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:09:26,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-01-11 02:09:26,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:09:26,617 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:09:26,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.466666666666667) internal successors, (37), 15 states have internal predecessors, (37), 0 states have call successors, (0), 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 02:09:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:09:26,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:09:26,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 02:09:26,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-11 02:09:26,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:09:26,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:09:27,972 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:09:27,972 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L854 garLoopResultBuilder]: At program point L9-2(lines 8 14) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|))) (or (and .cse0 (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 6)) (and .cse0 (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 100000000) (exists ((|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_14_74| Int) (|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74| Int) (|aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_13_74| Int)) (let ((.cse6 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_13_74| 4294967296)) (.cse4 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74| 4294967296)) (.cse5 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_14_74| 4294967296))) (let ((.cse1 (+ .cse4 .cse5 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse3 (+ .cse4 .cse5 .cse6 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse2 (+ .cse4 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|))) (and (<= 2 .cse1) (<= 1 .cse2) (<= 3 .cse3) (< .cse1 10000002) (< .cse3 10000003) (< (div (+ .cse4 .cse5 (- 4) .cse6 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 4294967296)) (+ (div (+ (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74| (- 4294967296)) 10000003 (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_13_74| (- 4294967296)) (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (* |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_14_74| (- 4294967296))) 4294967296) 1)) (< .cse2 10000001)))))) (and .cse0 (< (div (+ (- 10000002) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 4294967296)) (+ (div (+ 100000001 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) 4294967296) 1)) (<= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| (+ 2 (* 2 (div (+ (- 2) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 2)))) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296)))) [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point L8-2(lines 8 14) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point L9(lines 9 13) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point L4(line 4) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point L4-1(line 4) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point L4-3(line 4) no Hoare annotation was computed. [2022-01-11 02:09:27,973 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2022-01-11 02:09:27,974 INFO L861 garLoopResultBuilder]: At program point L17(lines 5 18) the Hoare annotation is: true [2022-01-11 02:09:27,974 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:09:27,974 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:09:27,977 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2022-01-11 02:09:27,978 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:09:27,987 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74| at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation.IcfgTransformationObserver.lambda$0(IcfgTransformationObserver.java:355) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:113) at de.uni_freiburg.informatik.ultimate.icfgtransformer.IcfgTransformationBacktranslator.translateExpression(IcfgTransformationBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-11 02:09:27,990 INFO L158 Benchmark]: Toolchain (without parser) took 25650.16ms. Allocated memory is still 175.1MB. Free memory was 127.8MB in the beginning and 108.6MB in the end (delta: 19.2MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,990 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 175.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:09:27,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.50ms. Allocated memory is still 175.1MB. Free memory was 127.5MB in the beginning and 154.8MB in the end (delta: -27.3MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.30ms. Allocated memory is still 175.1MB. Free memory was 154.8MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,991 INFO L158 Benchmark]: Boogie Preprocessor took 28.57ms. Allocated memory is still 175.1MB. Free memory was 153.2MB in the beginning and 152.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,991 INFO L158 Benchmark]: RCFGBuilder took 220.97ms. Allocated memory is still 175.1MB. Free memory was 152.1MB in the beginning and 143.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,991 INFO L158 Benchmark]: IcfgTransformer took 49.41ms. Allocated memory is still 175.1MB. Free memory was 143.2MB in the beginning and 140.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,992 INFO L158 Benchmark]: TraceAbstraction took 25083.05ms. Allocated memory is still 175.1MB. Free memory was 140.1MB in the beginning and 108.6MB in the end (delta: 31.5MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2022-01-11 02:09:27,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 175.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.50ms. Allocated memory is still 175.1MB. Free memory was 127.5MB in the beginning and 154.8MB in the end (delta: -27.3MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.30ms. Allocated memory is still 175.1MB. Free memory was 154.8MB in the beginning and 153.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.57ms. Allocated memory is still 175.1MB. Free memory was 153.2MB in the beginning and 152.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 220.97ms. Allocated memory is still 175.1MB. Free memory was 152.1MB in the beginning and 143.2MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 49.41ms. Allocated memory is still 175.1MB. Free memory was 143.2MB in the beginning and 140.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 25083.05ms. Allocated memory is still 175.1MB. Free memory was 140.1MB in the beginning and 108.6MB in the end (delta: 31.5MB). Peak memory consumption was 32.5MB. 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: 4]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.0s, OverallIterations: 7, TraceHistogramMax: 15, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 93 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 43 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 280 GetRequests, 182 SyntacticMatches, 11 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 18.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=6, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 14 NumberOfFragments, 144 HoareAnnotationTreeSize, 2 FomulaSimplifications, 113 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 1839 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 220 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 307 ConstructedInterpolants, 9 QuantifiedInterpolants, 1876 SizeOfPredicates, 2 NumberOfNonLiveVariables, 605 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 17 InterpolantComputations, 2 PerfectInterpolantSequences, 1044/1215 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: 5]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot translate AuxVars back to Bitvector Sort |aux_div_v_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int_15_74|: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.bvinttranslation.IntToBvBackTranslation.convert(IntToBvBackTranslation.java:88) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-11 02:09:28,045 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...