/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:19:38,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:19:38,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:19:38,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-01 00:19:38,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-01 00:19:38,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-01 00:19:38,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-01 00:19:38,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-01 00:19:38,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-01 00:19:38,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-01 00:19:38,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-01 00:19:38,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-01 00:19:38,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:19:38,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:19:38,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:19:38,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:19:38,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:19:38,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:19:38,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:19:38,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:19:38,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:19:38,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:19:38,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:19:38,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:19:38,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:19:38,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:19:38,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:19:38,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:19:38,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:19:38,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:19:38,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:19:38,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:19:38,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:19:38,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:19:38,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:19:38,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:19:38,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:19:38,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:38,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:19:38,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:19:38,178 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:19:38,178 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:19:38,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:19:38,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:19:38,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:19:38,379 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:19:38,379 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:19:38,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2022-02-01 00:19:38,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f801f9199/bf857850e79141aea57e3cdbd78a4ba5/FLAGa67371097 [2022-02-01 00:19:38,803 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:19:38,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c [2022-02-01 00:19:38,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f801f9199/bf857850e79141aea57e3cdbd78a4ba5/FLAGa67371097 [2022-02-01 00:19:38,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f801f9199/bf857850e79141aea57e3cdbd78a4ba5 [2022-02-01 00:19:38,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:19:38,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:19:38,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:38,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:19:38,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:19:38,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:38" (1/1) ... [2022-02-01 00:19:38,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47251764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:38, skipping insertion in model container [2022-02-01 00:19:38,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:38" (1/1) ... [2022-02-01 00:19:38,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:19:38,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:19:39,074 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c[15471,15484] [2022-02-01 00:19:39,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:39,108 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:19:39,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0320b.c[15471,15484] [2022-02-01 00:19:39,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:39,186 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:19:39,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39 WrapperNode [2022-02-01 00:19:39,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:39,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:19:39,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:19:39,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:19:39,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:19:39,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:19:39,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:19:39,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:19:39,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (1/1) ... [2022-02-01 00:19:39,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:39,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:19:39,332 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) [2022-02-01 00:19:39,337 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 [2022-02-01 00:19:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2022-02-01 00:19:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2022-02-01 00:19:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2022-02-01 00:19:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure cos_float [2022-02-01 00:19:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-02-01 00:19:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2022-02-01 00:19:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure cos_float [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:19:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:19:39,466 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:19:39,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:19:40,120 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:19:40,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:19:40,128 INFO L299 CfgBuilder]: Removed 59 assume(true) statements. [2022-02-01 00:19:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:40 BoogieIcfgContainer [2022-02-01 00:19:40,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:19:40,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:19:40,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:19:40,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:19:40,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:19:38" (1/3) ... [2022-02-01 00:19:40,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736d9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:40, skipping insertion in model container [2022-02-01 00:19:40,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:39" (2/3) ... [2022-02-01 00:19:40,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736d9f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:40, skipping insertion in model container [2022-02-01 00:19:40,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:40" (3/3) ... [2022-02-01 00:19:40,138 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0320b.c [2022-02-01 00:19:40,142 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:19:40,142 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:19:40,174 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:19:40,179 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=QVASR [2022-02-01 00:19:40,179 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:19:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 268 states, 236 states have (on average 1.6355932203389831) internal successors, (386), 237 states have internal predecessors, (386), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-01 00:19:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-01 00:19:40,198 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:40,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:19:40,199 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:40,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1776565199, now seen corresponding path program 1 times [2022-02-01 00:19:40,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:40,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032920391] [2022-02-01 00:19:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:40,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:40,254 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:19:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:40,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:19:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:19:40,681 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:19:40,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032920391] [2022-02-01 00:19:40,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1032920391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:19:40,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:19:40,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:19:40,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204897297] [2022-02-01 00:19:40,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:19:40,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:19:40,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:19:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:19:40,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:19:40,717 INFO L87 Difference]: Start difference. First operand has 268 states, 236 states have (on average 1.6355932203389831) internal successors, (386), 237 states have internal predecessors, (386), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-01 00:19:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:19:41,797 INFO L93 Difference]: Finished difference Result 528 states and 856 transitions. [2022-02-01 00:19:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:19:41,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-02-01 00:19:41,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:19:41,814 INFO L225 Difference]: With dead ends: 528 [2022-02-01 00:19:41,814 INFO L226 Difference]: Without dead ends: 264 [2022-02-01 00:19:41,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:19:41,824 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 322 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-01 00:19:41,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 336 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-01 00:19:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-02-01 00:19:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2022-02-01 00:19:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 234 states have (on average 1.3803418803418803) internal successors, (323), 234 states have internal predecessors, (323), 19 states have call successors, (19), 11 states have call predecessors, (19), 10 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-01 00:19:41,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 360 transitions. [2022-02-01 00:19:41,902 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 360 transitions. Word has length 17 [2022-02-01 00:19:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:19:41,902 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 360 transitions. [2022-02-01 00:19:41,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-01 00:19:41,902 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 360 transitions. [2022-02-01 00:19:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-01 00:19:41,903 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:41,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:19:41,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:19:41,903 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:41,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:41,904 INFO L85 PathProgramCache]: Analyzing trace with hash 762187852, now seen corresponding path program 1 times [2022-02-01 00:19:41,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:41,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386247552] [2022-02-01 00:19:41,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:41,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:41,906 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:41,948 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:19:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:42,013 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:19:42,014 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:19:42,015 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:19:42,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:19:42,019 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:19:42,021 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:19:42,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:19:42 BoogieIcfgContainer [2022-02-01 00:19:42,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:19:42,034 INFO L158 Benchmark]: Toolchain (without parser) took 3208.39ms. Allocated memory was 178.3MB in the beginning and 225.4MB in the end (delta: 47.2MB). Free memory was 123.4MB in the beginning and 176.9MB in the end (delta: -53.5MB). Peak memory consumption was 104.6MB. Max. memory is 8.0GB. [2022-02-01 00:19:42,035 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 178.3MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:19:42,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.40ms. Allocated memory was 178.3MB in the beginning and 225.4MB in the end (delta: 47.2MB). Free memory was 123.1MB in the beginning and 182.9MB in the end (delta: -59.8MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. [2022-02-01 00:19:42,035 INFO L158 Benchmark]: Boogie Preprocessor took 98.68ms. Allocated memory is still 225.4MB. Free memory was 182.9MB in the beginning and 176.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-02-01 00:19:42,036 INFO L158 Benchmark]: RCFGBuilder took 843.78ms. Allocated memory is still 225.4MB. Free memory was 176.1MB in the beginning and 113.7MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2022-02-01 00:19:42,036 INFO L158 Benchmark]: TraceAbstraction took 1902.54ms. Allocated memory is still 225.4MB. Free memory was 113.7MB in the beginning and 176.9MB in the end (delta: -63.2MB). Peak memory consumption was 47.9MB. Max. memory is 8.0GB. [2022-02-01 00:19:42,037 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 178.3MB. Free memory is still 140.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 355.40ms. Allocated memory was 178.3MB in the beginning and 225.4MB in the end (delta: 47.2MB). Free memory was 123.1MB in the beginning and 182.9MB in the end (delta: -59.8MB). Peak memory consumption was 9.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.68ms. Allocated memory is still 225.4MB. Free memory was 182.9MB in the beginning and 176.1MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 843.78ms. Allocated memory is still 225.4MB. Free memory was 176.1MB in the beginning and 113.7MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1902.54ms. Allocated memory is still 225.4MB. Free memory was 113.7MB in the beginning and 176.9MB in the end (delta: -63.2MB). Peak memory consumption was 47.9MB. 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: 613]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 612, overapproximation of someUnaryDOUBLEoperation at line 500, overapproximation of bitwiseAnd at line 579, overapproximation of someUnaryFLOAToperation at line 608, overapproximation of someBinaryArithmeticFLOAToperation at line 584. Possible FailurePath: [L18] static const float huge_floor = 1.0e30; [L86-L88] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L158] static const int init_jk_krempio[] = {4, 7, 9}; [L160-L164] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L166-L168] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L343-L361] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L363-L369] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L371-L380] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L500-L503] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L527-L530] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L567] static const float one_cos = 1.0; [L608] float x = -0.0f; [L609] CALL, EXPR cos_float(x) [L570] float y[2], z = 0.0; [L571] __int32_t n, ix; [L574] ieee_float_shape_type gf_u; [L575] gf_u.value = (x) [L576] EXPR gf_u.word [L576] (ix) = gf_u.word [L579] ix &= 0x7fffffff [L580] COND FALSE !(ix <= 0x3f490fd8) [L583] COND TRUE !((ix) < 0x7f800000L) [L584] return x - x; [L584] return x - x; [L609] RET, EXPR cos_float(x) [L609] float res = cos_float(x); [L612] COND TRUE res != 1.0f [L613] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 274 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 322 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 334 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 [2022-02-01 00:19:42,077 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...