/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/combinations/square_3+soft_float_3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:25:09,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:25:09,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:25:09,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 08:25:09,580 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 08:25:09,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 08:25:09,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 08:25:09,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 08:25:09,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 08:25:09,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 08:25:09,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 08:25:09,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 08:25:09,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:25:09,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:25:09,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:25:09,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:25:09,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:25:09,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:25:09,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:25:09,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:25:09,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:25:09,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:25:09,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:25:09,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:25:09,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:25:09,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 08:25:09,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 08:25:09,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 08:25:09,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 08:25:09,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 08:25:09,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 08:25:09,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 08:25:09,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 08:25:09,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:25:09,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:25:09,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:25:09,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 08:25:09,645 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:25:09,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:25:09,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:25:09,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:25:09,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 08:25:09,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 08:25:09,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:25:09,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:25:09,647 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:25:09,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:25:09,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:25:09,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:25:09,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:25:09,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:25:09,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:25:09,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:25:09,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:25:09,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:25:09,650 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:25:09,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:25:09,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:25:09,651 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:25:09,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:25:09,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:25:09,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:25:09,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:25:09,883 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:25:09,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/square_3+soft_float_3a.c.cil.c [2022-01-10 08:25:09,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dad32e0/62ba64ce56014090a366fc8dbc9ebb3d/FLAG939c21cc4 [2022-01-10 08:25:10,305 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:25:10,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/square_3+soft_float_3a.c.cil.c [2022-01-10 08:25:10,314 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dad32e0/62ba64ce56014090a366fc8dbc9ebb3d/FLAG939c21cc4 [2022-01-10 08:25:10,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dad32e0/62ba64ce56014090a366fc8dbc9ebb3d [2022-01-10 08:25:10,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:25:10,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 08:25:10,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:25:10,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:25:10,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:25:10,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:25:10" (1/1) ... [2022-01-10 08:25:10,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d645563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:10, skipping insertion in model container [2022-01-10 08:25:10,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:25:10" (1/1) ... [2022-01-10 08:25:10,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:25:10,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:25:10,896 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/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-01-10 08:25:10,899 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/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-01-10 08:25:10,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:25:10,931 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:25:10,949 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/square_3+soft_float_3a.c.cil.c[1999,2012] [2022-01-10 08:25:10,950 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/square_3+soft_float_3a.c.cil.c[2368,2381] [2022-01-10 08:25:10,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:25:11,000 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:25:11,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11 WrapperNode [2022-01-10 08:25:11,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:25:11,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:25:11,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:25:11,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:25:11,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,043 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-01-10 08:25:11,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:25:11,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:25:11,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:25:11,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:25:11,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:25:11,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:25:11,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:25:11,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:25:11,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (1/1) ... [2022-01-10 08:25:11,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:25:11,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:25:11,140 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 08:25:11,161 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 08:25:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:25:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:25:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-01-10 08:25:11,177 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-01-10 08:25:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:25:11,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:25:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-10 08:25:11,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-10 08:25:11,240 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:25:11,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:25:11,501 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:25:11,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:25:11,506 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 08:25:11,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:25:11 BoogieIcfgContainer [2022-01-10 08:25:11,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:25:11,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:25:11,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:25:11,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:25:11,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:25:10" (1/3) ... [2022-01-10 08:25:11,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd9f447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:25:11, skipping insertion in model container [2022-01-10 08:25:11,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:25:11" (2/3) ... [2022-01-10 08:25:11,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd9f447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:25:11, skipping insertion in model container [2022-01-10 08:25:11,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:25:11" (3/3) ... [2022-01-10 08:25:11,518 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_3a.c.cil.c [2022-01-10 08:25:11,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:25:11,521 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 08:25:11,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:25:11,557 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 08:25:11,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 08:25:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 08:25:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 08:25:11,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:25:11,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:25:11,572 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:25:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:25:11,575 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-01-10 08:25:11,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 08:25:11,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143701253] [2022-01-10 08:25:11,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:25:11,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 08:25:11,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 08:25:11,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 08:25:11,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 08:25:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:25:11,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 08:25:11,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:25:11,666 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 08:25:11,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 08:25:11,667 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 08:25:11,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143701253] [2022-01-10 08:25:11,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143701253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:25:11,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:25:11,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 08:25:11,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263139286] [2022-01-10 08:25:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:25:11,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 08:25:11,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 08:25:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 08:25:11,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 08:25:11,691 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 08:25:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:25:11,708 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-01-10 08:25:11,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 08:25:11,710 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-01-10 08:25:11,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:25:11,714 INFO L225 Difference]: With dead ends: 115 [2022-01-10 08:25:11,714 INFO L226 Difference]: Without dead ends: 51 [2022-01-10 08:25:11,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 08:25:11,726 INFO L933 BasicCegarLoop]: 81 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, 81 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 08:25:11,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 08:25:11,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-01-10 08:25:11,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-01-10 08:25:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-10 08:25:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-01-10 08:25:11,766 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-01-10 08:25:11,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:25:11,767 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-01-10 08:25:11,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 08:25:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-01-10 08:25:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-10 08:25:11,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:25:11,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:25:11,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 08:25:11,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 08:25:11,976 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:25:11,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:25:11,979 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-01-10 08:25:11,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 08:25:11,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720456685] [2022-01-10 08:25:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:25:11,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 08:25:11,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 08:25:11,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 08:25:12,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 08:25:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 08:25:12,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 08:25:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 08:25:12,067 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 08:25:12,068 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 08:25:12,069 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 08:25:12,070 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 08:25:12,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 08:25:12,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 08:25:12,284 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 08:25:12,286 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 08:25:12,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:25:12 BoogieIcfgContainer [2022-01-10 08:25:12,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 08:25:12,300 INFO L158 Benchmark]: Toolchain (without parser) took 1576.64ms. Allocated memory was 164.6MB in the beginning and 203.4MB in the end (delta: 38.8MB). Free memory was 106.0MB in the beginning and 125.8MB in the end (delta: -19.8MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,300 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 08:25:12,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.88ms. Allocated memory was 164.6MB in the beginning and 203.4MB in the end (delta: 38.8MB). Free memory was 105.8MB in the beginning and 172.4MB in the end (delta: -66.6MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.43ms. Allocated memory is still 203.4MB. Free memory was 172.4MB in the beginning and 170.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,301 INFO L158 Benchmark]: Boogie Preprocessor took 42.10ms. Allocated memory is still 203.4MB. Free memory was 170.3MB in the beginning and 168.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,301 INFO L158 Benchmark]: RCFGBuilder took 420.97ms. Allocated memory is still 203.4MB. Free memory was 168.7MB in the beginning and 153.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,302 INFO L158 Benchmark]: TraceAbstraction took 790.53ms. Allocated memory is still 203.4MB. Free memory was 153.0MB in the beginning and 125.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-01-10 08:25:12,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 164.6MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.88ms. Allocated memory was 164.6MB in the beginning and 203.4MB in the end (delta: 38.8MB). Free memory was 105.8MB in the beginning and 172.4MB in the end (delta: -66.6MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.43ms. Allocated memory is still 203.4MB. Free memory was 172.4MB in the beginning and 170.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.10ms. Allocated memory is still 203.4MB. Free memory was 170.3MB in the beginning and 168.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 420.97ms. Allocated memory is still 203.4MB. Free memory was 168.7MB in the beginning and 153.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 790.53ms. Allocated memory is still 203.4MB. Free memory was 153.0MB in the beginning and 125.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. 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: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.geq at line 47, overapproximation of fp.lt at line 47, overapproximation of fp.sub at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 60]: 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 3 procedures, 60 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 81 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, 81 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 1 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 [2022-01-10 08:25:12,328 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...