/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/floats-cbmc-regression/float-div1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:27:31,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:27:31,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:27:31,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 23:27:31,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:27:31,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:27:31,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:27:31,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:27:31,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:27:31,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:27:31,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:27:31,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:27:31,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:27:31,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:27:31,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:27:31,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:27:31,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 23:27:31,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:27:31,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:27:31,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:27:31,201 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 [2022-01-10 23:27:31,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:27:31,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:27:31,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:27:31,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:27:31,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:27:31,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:27:31,228 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:27:31,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:27:31,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:27:31,229 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:27:31,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:27:31,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:27:31,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:27:31,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:27:31,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:27:31,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:27:31,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:27:31,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:27:31,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:27:31,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:27:31,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:27:31,233 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:27:31,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:27:31,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:27:31,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:27:31,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:27:31,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:27:31,413 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:27:31,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-div1.i [2022-01-10 23:27:31,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a52fddc8/7a0a9dba5bb641ec801a41101756695d/FLAG961e458e4 [2022-01-10 23:27:31,908 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:27:31,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i [2022-01-10 23:27:31,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a52fddc8/7a0a9dba5bb641ec801a41101756695d/FLAG961e458e4 [2022-01-10 23:27:31,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a52fddc8/7a0a9dba5bb641ec801a41101756695d [2022-01-10 23:27:31,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:27:31,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:27:31,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:27:31,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:27:31,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:27:31,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:27:31" (1/1) ... [2022-01-10 23:27:31,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5eacd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:31, skipping insertion in model container [2022-01-10 23:27:31,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:27:31" (1/1) ... [2022-01-10 23:27:31,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:27:31,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:27:32,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40610,40623] [2022-01-10 23:27:32,339 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40902,40915] [2022-01-10 23:27:32,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40949,40962] [2022-01-10 23:27:32,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:27:32,349 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:27:32,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40610,40623] [2022-01-10 23:27:32,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40902,40915] [2022-01-10 23:27:32,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-div1.i[40949,40962] [2022-01-10 23:27:32,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:27:32,450 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:27:32,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32 WrapperNode [2022-01-10 23:27:32,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:27:32,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:27:32,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:27:32,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:27:32,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,499 INFO L137 Inliner]: procedures = 450, calls = 10, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 41 [2022-01-10 23:27:32,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:27:32,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:27:32,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:27:32,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:27:32,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:27:32,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:27:32,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:27:32,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:27:32,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:27:32,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:27:32,551 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 23:27:32,564 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 23:27:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:27:32,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:27:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:27:32,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:27:32,658 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:27:32,659 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:27:32,752 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:27:32,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:27:32,756 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 23:27:32,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:32 BoogieIcfgContainer [2022-01-10 23:27:32,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:27:32,757 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:27:32,757 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:27:32,758 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:27:32,760 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:32" (1/1) ... [2022-01-10 23:27:32,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:27:32 BasicIcfg [2022-01-10 23:27:32,818 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:27:32,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:27:32,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:27:32,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:27:32,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:27:31" (1/4) ... [2022-01-10 23:27:32,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ccbdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:27:32, skipping insertion in model container [2022-01-10 23:27:32,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:27:32" (2/4) ... [2022-01-10 23:27:32,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ccbdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:27:32, skipping insertion in model container [2022-01-10 23:27:32,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:27:32" (3/4) ... [2022-01-10 23:27:32,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ccbdb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:27:32, skipping insertion in model container [2022-01-10 23:27:32,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:27:32" (4/4) ... [2022-01-10 23:27:32,822 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.iTransformedIcfg [2022-01-10 23:27:32,825 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:27:32,825 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 23:27:32,861 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:27:32,865 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 23:27:32,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 23:27:32,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 16 states have (on average 1.5) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:27:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 23:27:32,878 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:27:32,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 23:27:32,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:27:32,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:27:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2045637530, now seen corresponding path program 1 times [2022-01-10 23:27:32,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:27:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851674048] [2022-01-10 23:27:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:27:32,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:27:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:27:33,027 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 23:27:33,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:27:33,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851674048] [2022-01-10 23:27:33,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851674048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:27:33,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:27:33,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:27:33,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841792525] [2022-01-10 23:27:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:27:33,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:27:33,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:27:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:27:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:27:33,056 INFO L87 Difference]: Start difference. First operand has 20 states, 16 states have (on average 1.5) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:27:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:27:33,067 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-01-10 23:27:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:27:33,068 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 23:27:33,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:27:33,072 INFO L225 Difference]: With dead ends: 37 [2022-01-10 23:27:33,072 INFO L226 Difference]: Without dead ends: 16 [2022-01-10 23:27:33,074 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 23:27:33,077 INFO L933 BasicCegarLoop]: 19 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, 19 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 23:27:33,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:27:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-10 23:27:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-01-10 23:27:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:27:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-01-10 23:27:33,096 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 6 [2022-01-10 23:27:33,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:27:33,097 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-01-10 23:27:33,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:27:33,098 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-01-10 23:27:33,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 23:27:33,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:27:33,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 23:27:33,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:27:33,099 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 23:27:33,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:27:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2045607739, now seen corresponding path program 1 times [2022-01-10 23:27:33,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:27:33,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148709545] [2022-01-10 23:27:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:27:33,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:27:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 23:27:33,131 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 23:27:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 23:27:33,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-10 23:27:33,179 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 23:27:33,180 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-10 23:27:33,181 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-10 23:27:33,182 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-10 23:27:33,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:27:33,187 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-10 23:27:33,190 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 23:27:33,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:27:33 BasicIcfg [2022-01-10 23:27:33,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 23:27:33,211 INFO L158 Benchmark]: Toolchain (without parser) took 1265.04ms. Allocated memory was 191.9MB in the beginning and 245.4MB in the end (delta: 53.5MB). Free memory was 134.4MB in the beginning and 138.8MB in the end (delta: -4.4MB). Peak memory consumption was 49.4MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,213 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 152.6MB in the beginning and 152.6MB in the end (delta: 57.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 23:27:33,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.15ms. Allocated memory was 191.9MB in the beginning and 245.4MB in the end (delta: 53.5MB). Free memory was 134.2MB in the beginning and 182.3MB in the end (delta: -48.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.50ms. Allocated memory is still 245.4MB. Free memory was 182.3MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,216 INFO L158 Benchmark]: Boogie Preprocessor took 27.28ms. Allocated memory is still 245.4MB. Free memory was 179.2MB in the beginning and 178.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,216 INFO L158 Benchmark]: RCFGBuilder took 229.07ms. Allocated memory is still 245.4MB. Free memory was 178.1MB in the beginning and 167.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,216 INFO L158 Benchmark]: IcfgTransformer took 60.42ms. Allocated memory is still 245.4MB. Free memory was 167.1MB in the beginning and 164.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,216 INFO L158 Benchmark]: TraceAbstraction took 391.69ms. Allocated memory is still 245.4MB. Free memory was 164.0MB in the beginning and 138.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-10 23:27:33,221 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 152.6MB in the beginning and 152.6MB in the end (delta: 57.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 503.15ms. Allocated memory was 191.9MB in the beginning and 245.4MB in the end (delta: 53.5MB). Free memory was 134.2MB in the beginning and 182.3MB in the end (delta: -48.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.50ms. Allocated memory is still 245.4MB. Free memory was 182.3MB in the beginning and 179.2MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.28ms. Allocated memory is still 245.4MB. Free memory was 179.2MB in the beginning and 178.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 229.07ms. Allocated memory is still 245.4MB. Free memory was 178.1MB in the beginning and 167.1MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 60.42ms. Allocated memory is still 245.4MB. Free memory was 167.1MB in the beginning and 164.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 391.69ms. Allocated memory is still 245.4MB. Free memory was 164.0MB in the beginning and 138.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. 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: 384]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of fp.isNaN at line 380, overapproximation of fp.gt at line 384, overapproximation of fp.div at line 381, overapproximation of fp.isSubnormal at line 380, overapproximation of fp.isNormal at line 380, overapproximation of fp.leq at line 380, overapproximation of fp.lt at line 380, overapproximation of fp.isInfinite at line 380, overapproximation of floatingLiteral_0.24999998509883880615234375_FLOAT at line 379. Possible FailurePath: [L396] float f, g; [L397] CALL inductiveStepHunt(f) [L379] float target = 0x1.fffffep-3f; [L380] CALL assume_abort_if_not((0 < startState) && ((sizeof (startState) == sizeof (float) ? __fpclassifyf (startState) : sizeof (startState) == sizeof (double) ? __fpclassify (startState) : __fpclassifyl (startState)) == 4) && (0x1p-126f <= startState)) [L3] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L380] RET assume_abort_if_not((0 < startState) && ((sizeof (startState) == sizeof (float) ? __fpclassifyf (startState) : sizeof (startState) == sizeof (double) ? __fpclassify (startState) : __fpclassifyl (startState)) == 4) && (0x1p-126f <= startState)) [L381] float secondPoint = (target / startState); [L382] float nextState = (startState + secondPoint) / 2; [L383] float oneAfter = (target / nextState); [L384] COND TRUE !(oneAfter > 0) [L384] reach_error() - UnprovableResult [Line: 391]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 392]: 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, 20 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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, 19 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, 19 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=20occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2022-01-10 23:27:33,264 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...