/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:31:43,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:31:43,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:31:43,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:31:43,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:31:43,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:31:43,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:31:43,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:31:43,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:31:43,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:31:43,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:31:43,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:31:43,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:31:43,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:31:43,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:31:43,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:31:43,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:31:43,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:31:43,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:31:43,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:31:43,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:31:43,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:31:43,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:31:43,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:31:43,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:31:43,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:31:43,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:31:43,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:31:43,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:31:43,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:31:43,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:31:43,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:31:43,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:31:43,987 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:31:43,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:31:43,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:31:43,988 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:31:43,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:31:43,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:31:43,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:43,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:31:43,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:31:43,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:31:43,989 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:31:44,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:31:44,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:31:44,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:31:44,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:31:44,316 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:31:44,317 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-22 18:31:44,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec41f6516/69d2c9c1734d42deb636ac9f6b12fc47/FLAG56b31921e [2020-08-22 18:31:44,814 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:31:44,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c [2020-08-22 18:31:44,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec41f6516/69d2c9c1734d42deb636ac9f6b12fc47/FLAG56b31921e [2020-08-22 18:31:45,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec41f6516/69d2c9c1734d42deb636ac9f6b12fc47 [2020-08-22 18:31:45,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:31:45,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:31:45,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:45,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:31:45,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:31:45,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6fb2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45, skipping insertion in model container [2020-08-22 18:31:45,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:31:45,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:31:45,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:45,481 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:31:45,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:45,611 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:31:45,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45 WrapperNode [2020-08-22 18:31:45,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:45,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:31:45,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:31:45,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:31:45,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... [2020-08-22 18:31:45,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:31:45,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:31:45,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:31:45,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:31:45,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:45,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-22 18:31:45,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:31:45,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:31:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:31:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:31:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:31:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:31:46,096 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:31:46,097 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 18:31:46,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:46 BoogieIcfgContainer [2020-08-22 18:31:46,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:31:46,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:31:46,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:31:46,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:31:46,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:31:45" (1/3) ... [2020-08-22 18:31:46,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e881abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:46, skipping insertion in model container [2020-08-22 18:31:46,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:45" (2/3) ... [2020-08-22 18:31:46,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e881abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:46, skipping insertion in model container [2020-08-22 18:31:46,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:46" (3/3) ... [2020-08-22 18:31:46,109 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c [2020-08-22 18:31:46,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:31:46,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:31:46,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:31:46,169 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:31:46,169 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:31:46,169 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:31:46,169 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:31:46,169 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:31:46,169 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:31:46,169 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:31:46,170 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:31:46,204 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-08-22 18:31:46,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-22 18:31:46,216 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:46,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:46,217 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:46,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1987914920, now seen corresponding path program 1 times [2020-08-22 18:31:46,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:46,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1732751950] [2020-08-22 18:31:46,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:46,284 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:46,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:46,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:46,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:46,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1732751950] [2020-08-22 18:31:46,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:46,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:31:46,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255409588] [2020-08-22 18:31:46,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:31:46,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:46,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:31:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:31:46,509 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2020-08-22 18:31:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:46,775 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-08-22 18:31:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:31:46,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-08-22 18:31:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:46,789 INFO L225 Difference]: With dead ends: 176 [2020-08-22 18:31:46,789 INFO L226 Difference]: Without dead ends: 87 [2020-08-22 18:31:46,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:31:46,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-08-22 18:31:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-08-22 18:31:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 18:31:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-08-22 18:31:46,853 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 35 [2020-08-22 18:31:46,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:46,854 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-08-22 18:31:46,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:31:46,854 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-08-22 18:31:46,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 18:31:46,857 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:46,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:46,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:31:46,858 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1530124146, now seen corresponding path program 1 times [2020-08-22 18:31:46,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:46,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360829506] [2020-08-22 18:31:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:46,862 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:46,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:47,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360829506] [2020-08-22 18:31:47,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:47,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:31:47,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348414878] [2020-08-22 18:31:47,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:31:47,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:47,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:31:47,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:31:47,115 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-08-22 18:31:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:47,342 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2020-08-22 18:31:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:31:47,343 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-22 18:31:47,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:47,347 INFO L225 Difference]: With dead ends: 123 [2020-08-22 18:31:47,347 INFO L226 Difference]: Without dead ends: 92 [2020-08-22 18:31:47,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:31:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-08-22 18:31:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-08-22 18:31:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 18:31:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 18:31:47,366 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-08-22 18:31:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:47,367 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 18:31:47,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:31:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 18:31:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 18:31:47,369 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:47,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:47,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:31:47,370 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:47,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:47,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1091693362, now seen corresponding path program 1 times [2020-08-22 18:31:47,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:47,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146567228] [2020-08-22 18:31:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:47,373 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 18:31:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:31:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:47,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146567228] [2020-08-22 18:31:47,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:47,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:31:47,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195755338] [2020-08-22 18:31:47,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:31:47,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:47,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:31:47,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:31:47,545 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-08-22 18:31:47,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:47,731 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-08-22 18:31:47,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:31:47,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-08-22 18:31:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:47,734 INFO L225 Difference]: With dead ends: 127 [2020-08-22 18:31:47,734 INFO L226 Difference]: Without dead ends: 96 [2020-08-22 18:31:47,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:31:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-08-22 18:31:47,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-08-22 18:31:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 18:31:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 18:31:47,749 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-08-22 18:31:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:47,750 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 18:31:47,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:31:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 18:31:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 18:31:47,755 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:47,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:47,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:31:47,756 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:47,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1804168050, now seen corresponding path program 1 times [2020-08-22 18:31:47,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:47,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530698702] [2020-08-22 18:31:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:47,761 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:47,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:47,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:47,882 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:31:47,883 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:31:47,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:31:47,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:31:47 BoogieIcfgContainer [2020-08-22 18:31:47,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:31:47,910 INFO L168 Benchmark]: Toolchain (without parser) took 2657.49 ms. Allocated memory was 142.1 MB in the beginning and 232.8 MB in the end (delta: 90.7 MB). Free memory was 104.6 MB in the beginning and 99.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 96.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,913 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 142.1 MB. Free memory was 123.3 MB in the beginning and 123.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.85 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 104.4 MB in the beginning and 182.3 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,915 INFO L168 Benchmark]: Boogie Preprocessor took 49.62 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 179.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,916 INFO L168 Benchmark]: RCFGBuilder took 439.52 ms. Allocated memory is still 203.9 MB. Free memory was 179.8 MB in the beginning and 155.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,922 INFO L168 Benchmark]: TraceAbstraction took 1803.57 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 154.5 MB in the beginning and 99.0 MB in the end (delta: 55.5 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:47,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 142.1 MB. Free memory was 123.3 MB in the beginning and 123.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 359.85 ms. Allocated memory was 142.1 MB in the beginning and 203.9 MB in the end (delta: 61.9 MB). Free memory was 104.4 MB in the beginning and 182.3 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.62 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 179.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 439.52 ms. Allocated memory is still 203.9 MB. Free memory was 179.8 MB in the beginning and 155.1 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1803.57 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 154.5 MB in the beginning and 99.0 MB in the end (delta: 55.5 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74. Possible FailurePath: [L74] double x = -0.0; [L75] double y = 0.0; [L76] CALL, EXPR fmin_double(x, y) [L46] CALL, EXPR __fpclassify_double(x) [L19] __uint32_t msw, lsw; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (msw) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (lsw) = ew_u.parts.lsw [L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L34-L35] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L42] return 0; [L46] RET, EXPR __fpclassify_double(x) [L46] COND TRUE __fpclassify_double(x) == 0 [L47] return y; [L76] RET, EXPR fmin_double(x, y) [L76] double res = fmin_double(x, y); [L79] EXPR res == -0.0 && __signbit_double(res) == 1 [L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L80] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 523 SDs, 0 SdLazy, 377 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 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 Received shutdown request...