/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:39:39,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:39:39,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:39:39,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 19:39:39,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 19:39:39,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 19:39:39,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 19:39:39,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 19:39:39,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 19:39:39,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 19:39:39,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 19:39:39,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 19:39:39,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:39:39,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:39:39,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:39:39,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:39:39,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:39:39,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:39:39,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:39:39,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:39:39,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:39:39,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:39:39,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:39:39,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:39:39,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 19:39:39,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 19:39:39,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 19:39:39,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 19:39:39,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 19:39:39,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 19:39:39,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 19:39:39,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 19:39:39,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 19:39:39,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 19:39:39,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 19:39:39,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 19:39:39,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 19:39:39,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 19:39:39,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:39:39,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:39:39,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:39:39,705 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:39:39,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:39:39,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:39:39,721 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:39:39,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:39:39,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:39:39,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:39:39,722 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:39:39,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:39:39,723 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:39:39,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:39:39,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:39:39,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:39:39,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:39:39,726 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:39:39,726 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:39:39,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:39:39,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:39:39,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:39:39,938 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:39:39,938 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:39:39,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i [2022-01-10 19:39:39,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c01dfe/b409687f5c264f2382f0feca78eaa72f/FLAG6622f5636 [2022-01-10 19:39:40,273 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:39:40,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i [2022-01-10 19:39:40,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c01dfe/b409687f5c264f2382f0feca78eaa72f/FLAG6622f5636 [2022-01-10 19:39:40,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/445c01dfe/b409687f5c264f2382f0feca78eaa72f [2022-01-10 19:39:40,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:39:40,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:39:40,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:39:40,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:39:40,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:39:40,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c33287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40, skipping insertion in model container [2022-01-10 19:39:40,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:39:40,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:39:40,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i[1226,1239] [2022-01-10 19:39:40,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i[2841,2854] [2022-01-10 19:39:40,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:39:40,876 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:39:40,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i[1226,1239] [2022-01-10 19:39:40,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_3+newton_2_3.i[2841,2854] [2022-01-10 19:39:40,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:39:40,901 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:39:40,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40 WrapperNode [2022-01-10 19:39:40,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:39:40,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:39:40,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:39:40,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:39:40,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,937 INFO L137 Inliner]: procedures = 28, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 84 [2022-01-10 19:39:40,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:39:40,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:39:40,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:39:40,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:39:40,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:39:40,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:39:40,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:39:40,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:39:40,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (1/1) ... [2022-01-10 19:39:40,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:39:40,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:39:40,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 19:39:40,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 19:39:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:39:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:39:41,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:39:41,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:39:41,058 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:39:41,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:39:41,169 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:39:41,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:39:41,173 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 19:39:41,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:39:41 BoogieIcfgContainer [2022-01-10 19:39:41,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:39:41,175 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:39:41,175 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:39:41,176 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:39:41,178 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:39:41" (1/1) ... [2022-01-10 19:39:41,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:39:41 BasicIcfg [2022-01-10 19:39:41,268 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:39:41,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:39:41,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:39:41,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:39:41,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:39:40" (1/4) ... [2022-01-10 19:39:41,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f88b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:39:41, skipping insertion in model container [2022-01-10 19:39:41,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:39:40" (2/4) ... [2022-01-10 19:39:41,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f88b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:39:41, skipping insertion in model container [2022-01-10 19:39:41,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:39:41" (3/4) ... [2022-01-10 19:39:41,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f88b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:39:41, skipping insertion in model container [2022-01-10 19:39:41,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:39:41" (4/4) ... [2022-01-10 19:39:41,273 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_2_3.iTransformedIcfg [2022-01-10 19:39:41,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:39:41,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 19:39:41,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:39:41,309 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 19:39:41,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 19:39:41,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 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) [2022-01-10 19:39:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 19:39:41,327 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:39:41,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:39:41,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:39:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:39:41,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1912761922, now seen corresponding path program 1 times [2022-01-10 19:39:41,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:39:41,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457063275] [2022-01-10 19:39:41,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:39:41,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:39:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:39:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:39:41,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:39:41,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457063275] [2022-01-10 19:39:41,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457063275] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:39:41,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:39:41,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:39:41,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815451716] [2022-01-10 19:39:41,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:39:41,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 19:39:41,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:39:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 19:39:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 19:39:41,495 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 28 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-01-10 19:39:41,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:39:41,511 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2022-01-10 19:39:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 19:39:41,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2022-01-10 19:39:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:39:41,521 INFO L225 Difference]: With dead ends: 51 [2022-01-10 19:39:41,521 INFO L226 Difference]: Without dead ends: 21 [2022-01-10 19:39:41,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 19:39:41,526 INFO L933 BasicCegarLoop]: 33 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, 33 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:39:41,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:39:41,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-01-10 19:39:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-01-10 19:39:41,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:39:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-01-10 19:39:41,563 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 11 [2022-01-10 19:39:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:39:41,564 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-01-10 19:39:41,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-01-10 19:39:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-01-10 19:39:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 19:39:41,565 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:39:41,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:39:41,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:39:41,566 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:39:41,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:39:41,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1941391073, now seen corresponding path program 1 times [2022-01-10 19:39:41,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:39:41,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416310905] [2022-01-10 19:39:41,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:39:41,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:39:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:39:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:39:41,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:39:41,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416310905] [2022-01-10 19:39:41,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416310905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:39:41,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:39:41,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 19:39:41,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33309594] [2022-01-10 19:39:41,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:39:41,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 19:39:41,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:39:41,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 19:39:41,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:39:41,968 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-01-10 19:39:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:39:42,065 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-01-10 19:39:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 19:39:42,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2022-01-10 19:39:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:39:42,067 INFO L225 Difference]: With dead ends: 36 [2022-01-10 19:39:42,067 INFO L226 Difference]: Without dead ends: 28 [2022-01-10 19:39:42,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:39:42,068 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 15 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:39:42,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 50 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:39:42,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-01-10 19:39:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-01-10 19:39:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) 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) [2022-01-10 19:39:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-01-10 19:39:42,072 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2022-01-10 19:39:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:39:42,072 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-01-10 19:39:42,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-01-10 19:39:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-01-10 19:39:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 19:39:42,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:39:42,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:39:42,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:39:42,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:39:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:39:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash -610765888, now seen corresponding path program 1 times [2022-01-10 19:39:42,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:39:42,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409148982] [2022-01-10 19:39:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:39:42,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:39:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:39:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:39:42,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:39:42,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409148982] [2022-01-10 19:39:42,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409148982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:39:42,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:39:42,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 19:39:42,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308172719] [2022-01-10 19:39:42,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:39:42,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 19:39:42,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:39:42,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 19:39:42,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:39:42,194 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-01-10 19:39:44,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-01-10 19:39:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:39:44,499 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-01-10 19:39:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 19:39:44,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2022-01-10 19:39:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:39:44,501 INFO L225 Difference]: With dead ends: 28 [2022-01-10 19:39:44,501 INFO L226 Difference]: Without dead ends: 22 [2022-01-10 19:39:44,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 19:39:44,502 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 19:39:44,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 19:39:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-01-10 19:39:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-01-10 19:39:44,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:39:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-01-10 19:39:44,506 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2022-01-10 19:39:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:39:44,506 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-01-10 19:39:44,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-01-10 19:39:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-01-10 19:39:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 19:39:44,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:39:44,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:39:44,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:39:44,507 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:39:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:39:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash 276737793, now seen corresponding path program 1 times [2022-01-10 19:39:44,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:39:44,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091934093] [2022-01-10 19:39:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:39:44,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:39:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:39:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:39:44,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:39:44,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091934093] [2022-01-10 19:39:44,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091934093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:39:44,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:39:44,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 19:39:44,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997647048] [2022-01-10 19:39:44,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:39:44,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 19:39:44,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:39:44,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 19:39:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 19:39:44,970 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-01-10 19:39:45,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:39:45,506 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-01-10 19:39:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:39:45,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) Word has length 11 [2022-01-10 19:39:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:39:45,507 INFO L225 Difference]: With dead ends: 29 [2022-01-10 19:39:45,507 INFO L226 Difference]: Without dead ends: 23 [2022-01-10 19:39:45,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 19:39:45,508 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:39:45,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 80 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:39:45,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-10 19:39:45,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2022-01-10 19:39:45,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:39:45,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-01-10 19:39:45,511 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 11 [2022-01-10 19:39:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:39:45,511 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-01-10 19:39:45,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 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) [2022-01-10 19:39:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-01-10 19:39:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 19:39:45,512 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:39:45,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 19:39:45,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:39:45,512 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:39:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:39:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1394345982, now seen corresponding path program 1 times [2022-01-10 19:39:45,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:39:45,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008786448] [2022-01-10 19:39:45,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:39:45,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:39:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 19:39:45,520 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 19:39:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 19:39:45,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 19:39:45,536 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 19:39:45,536 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 19:39:45,537 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 19:39:45,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:39:45,540 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-01-10 19:39:45,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 19:39:45,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:39:45 BasicIcfg [2022-01-10 19:39:45,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 19:39:45,557 INFO L158 Benchmark]: Toolchain (without parser) took 4848.31ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 129.6MB in the beginning and 109.6MB in the end (delta: 20.1MB). Peak memory consumption was 57.4MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,558 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 19:39:45,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.49ms. Allocated memory is still 180.4MB. Free memory was 129.5MB in the beginning and 155.4MB in the end (delta: -25.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.27ms. Allocated memory is still 180.4MB. Free memory was 155.4MB in the beginning and 153.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,558 INFO L158 Benchmark]: Boogie Preprocessor took 17.63ms. Allocated memory is still 180.4MB. Free memory was 153.3MB in the beginning and 152.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,558 INFO L158 Benchmark]: RCFGBuilder took 218.43ms. Allocated memory is still 180.4MB. Free memory was 152.2MB in the beginning and 140.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,559 INFO L158 Benchmark]: IcfgTransformer took 92.66ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 134.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,559 INFO L158 Benchmark]: TraceAbstraction took 4288.54ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 133.9MB in the beginning and 109.6MB in the end (delta: 24.3MB). Peak memory consumption was 62.1MB. Max. memory is 8.0GB. [2022-01-10 19:39:45,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 146.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.49ms. Allocated memory is still 180.4MB. Free memory was 129.5MB in the beginning and 155.4MB in the end (delta: -25.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.27ms. Allocated memory is still 180.4MB. Free memory was 155.4MB in the beginning and 153.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.63ms. Allocated memory is still 180.4MB. Free memory was 153.3MB in the beginning and 152.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 218.43ms. Allocated memory is still 180.4MB. Free memory was 152.2MB in the beginning and 140.7MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 92.66ms. Allocated memory is still 180.4MB. Free memory was 140.7MB in the beginning and 134.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 4288.54ms. Allocated memory was 180.4MB in the beginning and 217.1MB in the end (delta: 36.7MB). Free memory was 133.9MB in the beginning and 109.6MB in the end (delta: 24.3MB). Peak memory consumption was 62.1MB. 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 - UnprovableResult [Line: 102]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.gt at line 91, overapproximation of fp.add at line 85, overapproximation of fp.sub at line 95, overapproximation of fp.lt at line 101. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L95] CALL, EXPR f(x) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L95] RET, EXPR f(x) [L95] CALL, EXPR fp(x) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L95] RET, EXPR fp(x) [L95] x = x - f(x)/fp(x) [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 86 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 581 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-10 19:39:45,583 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...