/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_NONE.epf -i ../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:24:41,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:24:41,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:24:41,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 01:24:41,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:24:41,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:24:41,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:24:41,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:24:41,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:24:41,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:24:41,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:24:41,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:24:41,638 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:24:41,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:24:41,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:24:41,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:24:41,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 01:24:41,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:24:41,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:24:41,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:24:41,666 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:24:41,682 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:24:41,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:24:41,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:24:41,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:24:41,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:24:41,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:24:41,684 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:24:41,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:24:41,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:24:41,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:24:41,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:24:41,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:24:41,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:24:41,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:24:41,686 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:24:41,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:24:41,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:24:41,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:24:41,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:24:41,687 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:24:41,688 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:24:41,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:24:41,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:24:41,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:24:41,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:24:41,928 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:24:41,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/gcd_2+newton_1_8.i [2022-01-11 01:24:41,983 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd977b53/13b83d9ba6c14266832ea1ca0b59e899/FLAGf3eee7e81 [2022-01-11 01:24:42,324 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:24:42,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/gcd_2+newton_1_8.i [2022-01-11 01:24:42,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd977b53/13b83d9ba6c14266832ea1ca0b59e899/FLAGf3eee7e81 [2022-01-11 01:24:42,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcd977b53/13b83d9ba6c14266832ea1ca0b59e899 [2022-01-11 01:24:42,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:24:42,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:24:42,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:24:42,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:24:42,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:24:42,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:42,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d25c86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42, skipping insertion in model container [2022-01-11 01:24:42,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:42,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:24:42,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:24:42,913 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_2+newton_1_8.i[1226,1239] [2022-01-11 01:24:42,933 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_2+newton_1_8.i[2820,2833] [2022-01-11 01:24:42,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:24:42,942 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:24:42,953 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_2+newton_1_8.i[1226,1239] [2022-01-11 01:24:42,961 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_2+newton_1_8.i[2820,2833] [2022-01-11 01:24:42,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:24:42,973 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:24:42,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42 WrapperNode [2022-01-11 01:24:42,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:24:42,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:24:42,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:24:42,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:24:42,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:42,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,022 INFO L137 Inliner]: procedures = 28, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 73 [2022-01-11 01:24:43,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:24:43,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:24:43,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:24:43,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:24:43,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,057 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:24:43,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:24:43,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:24:43,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:24:43,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (1/1) ... [2022-01-11 01:24:43,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:24:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:24:43,091 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 01:24:43,100 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 01:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:24:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:24:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:24:43,206 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:24:43,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:24:43,385 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:24:43,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:24:43,391 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 01:24:43,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:24:43 BoogieIcfgContainer [2022-01-11 01:24:43,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:24:43,393 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:24:43,393 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:24:43,394 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:24:43,396 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:24:43" (1/1) ... [2022-01-11 01:24:43,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:24:43 BasicIcfg [2022-01-11 01:24:43,499 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:24:43,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:24:43,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:24:43,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:24:43,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:24:42" (1/4) ... [2022-01-11 01:24:43,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baac009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:24:43, skipping insertion in model container [2022-01-11 01:24:43,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:24:42" (2/4) ... [2022-01-11 01:24:43,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baac009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:24:43, skipping insertion in model container [2022-01-11 01:24:43,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:24:43" (3/4) ... [2022-01-11 01:24:43,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1baac009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:24:43, skipping insertion in model container [2022-01-11 01:24:43,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:24:43" (4/4) ... [2022-01-11 01:24:43,506 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_1_8.iTransformedIcfg [2022-01-11 01:24:43,510 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:24:43,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-11 01:24:43,543 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:24:43,548 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 01:24:43,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-11 01:24:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:24:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 01:24:43,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:43,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:43,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:43,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:43,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1281195302, now seen corresponding path program 1 times [2022-01-11 01:24:43,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:43,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215754145] [2022-01-11 01:24:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:43,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:24:43,685 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 01:24:43,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:24:43,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215754145] [2022-01-11 01:24:43,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215754145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:24:43,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:24:43,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:24:43,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74729814] [2022-01-11 01:24:43,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:24:43,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 01:24:43,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:24:43,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 01:24:43,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 01:24:43,718 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 01:24:43,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:24:43,733 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-01-11 01:24:43,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 01:24:43,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2022-01-11 01:24:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:24:43,742 INFO L225 Difference]: With dead ends: 47 [2022-01-11 01:24:43,742 INFO L226 Difference]: Without dead ends: 19 [2022-01-11 01:24:43,744 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 01:24:43,747 INFO L933 BasicCegarLoop]: 31 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, 31 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 01:24:43,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:24:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-11 01:24:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-01-11 01:24:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:24:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-01-11 01:24:43,771 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-01-11 01:24:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:24:43,772 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-01-11 01:24:43,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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 01:24:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-01-11 01:24:43,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 01:24:43,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:24:43,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:24:43,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:24:43,773 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:24:43,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:24:43,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1252566151, now seen corresponding path program 1 times [2022-01-11 01:24:43,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:24:43,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486294903] [2022-01-11 01:24:43,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:24:43,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:24:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 01:24:43,808 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 01:24:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 01:24:43,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 01:24:43,860 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 01:24:43,862 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-11 01:24:43,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-11 01:24:43,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:24:43,868 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-11 01:24:43,869 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 01:24:43,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:24:43 BasicIcfg [2022-01-11 01:24:43,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 01:24:43,888 INFO L158 Benchmark]: Toolchain (without parser) took 1147.82ms. Allocated memory is still 184.5MB. Free memory was 130.9MB in the beginning and 110.5MB in the end (delta: 20.4MB). Peak memory consumption was 20.1MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,889 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 01:24:43,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 184.5MB. Free memory was 130.6MB in the beginning and 155.6MB in the end (delta: -25.0MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.33ms. Allocated memory is still 184.5MB. Free memory was 155.6MB in the beginning and 154.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,890 INFO L158 Benchmark]: Boogie Preprocessor took 37.74ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 152.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,890 INFO L158 Benchmark]: RCFGBuilder took 330.55ms. Allocated memory is still 184.5MB. Free memory was 152.5MB in the beginning and 141.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,891 INFO L158 Benchmark]: IcfgTransformer took 106.32ms. Allocated memory is still 184.5MB. Free memory was 141.5MB in the beginning and 135.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,891 INFO L158 Benchmark]: TraceAbstraction took 386.62ms. Allocated memory is still 184.5MB. Free memory was 134.7MB in the beginning and 110.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-01-11 01:24:43,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 184.5MB. Free memory was 130.6MB in the beginning and 155.6MB in the end (delta: -25.0MB). Peak memory consumption was 12.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.33ms. Allocated memory is still 184.5MB. Free memory was 155.6MB in the beginning and 154.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.74ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 152.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 330.55ms. Allocated memory is still 184.5MB. Free memory was 152.5MB in the beginning and 141.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 106.32ms. Allocated memory is still 184.5MB. Free memory was 141.5MB in the beginning and 135.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * TraceAbstraction took 386.62ms. Allocated memory is still 184.5MB. Free memory was 134.7MB in the beginning and 110.5MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. 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 93, 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 > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [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); [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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-01-11 01:24:43,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...