/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:34:33,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:34:33,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:34:33,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 00:34:33,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 00:34:33,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 00:34:33,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 00:34:33,961 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 00:34:33,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 00:34:33,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 00:34:33,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 00:34:33,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 00:34:33,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:34:33,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:34:33,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:34:33,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:34:33,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:34:33,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:34:33,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:34:33,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:34:33,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:34:33,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:34:33,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:34:33,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:34:34,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:34:34,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:34:34,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:34:34,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:34:34,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:34:34,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:34:34,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:34:34,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:34:34,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:34:34,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:34:34,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:34:34,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:34:34,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:34:34,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:34:34,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:34:34,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:34:34,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:34:34,035 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:34:34,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:34:34,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:34:34,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:34:34,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:34:34,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:34:34,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:34:34,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:34:34,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:34:34,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:34:34,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:34:34,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:34:34,479 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:34:34,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2020-10-24 00:34:34,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656e77334/fd38d883bf22459bad841f6429a9f6c4/FLAG2aeaca7bc [2020-10-24 00:34:35,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:34:35,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211b.c [2020-10-24 00:34:35,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656e77334/fd38d883bf22459bad841f6429a9f6c4/FLAG2aeaca7bc [2020-10-24 00:34:35,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/656e77334/fd38d883bf22459bad841f6429a9f6c4 [2020-10-24 00:34:35,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:34:35,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:34:35,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:35,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:34:35,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:34:35,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b374bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35, skipping insertion in model container [2020-10-24 00:34:35,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:34:35,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:34:35,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:35,836 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:34:35,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:34:35,895 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:34:35,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35 WrapperNode [2020-10-24 00:34:35,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:34:35,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:34:35,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:34:35,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:34:35,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (1/1) ... [2020-10-24 00:34:35,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:34:35,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:34:35,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:34:35,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:34:35,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (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 [2020-10-24 00:34:36,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:34:36,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:34:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:34:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2020-10-24 00:34:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-24 00:34:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-10-24 00:34:36,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:34:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:34:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:34:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:34:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:34:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-24 00:34:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2020-10-24 00:34:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 00:34:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:34:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:34:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 00:34:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:34:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:34:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:34:36,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:34:36,853 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-24 00:34:36,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:36 BoogieIcfgContainer [2020-10-24 00:34:36,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:34:36,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:34:36,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:34:36,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:34:36,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:34:35" (1/3) ... [2020-10-24 00:34:36,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e5b3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:36, skipping insertion in model container [2020-10-24 00:34:36,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:34:35" (2/3) ... [2020-10-24 00:34:36,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e5b3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:34:36, skipping insertion in model container [2020-10-24 00:34:36,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:34:36" (3/3) ... [2020-10-24 00:34:36,864 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b.c [2020-10-24 00:34:36,876 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:34:36,882 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:34:36,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:34:36,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:34:36,923 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:34:36,923 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:34:36,923 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:34:36,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:34:36,923 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:34:36,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:34:36,924 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:34:36,945 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-24 00:34:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-24 00:34:36,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:36,960 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, 1] [2020-10-24 00:34:36,961 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:36,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:36,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1634014633, now seen corresponding path program 1 times [2020-10-24 00:34:36,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:36,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999442497] [2020-10-24 00:34:36,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:37,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-24 00:34:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:37,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-24 00:34:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:37,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999442497] [2020-10-24 00:34:37,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:37,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 00:34:37,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688757473] [2020-10-24 00:34:37,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 00:34:37,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:37,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 00:34:37,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 00:34:37,422 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 4 states. [2020-10-24 00:34:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:38,297 INFO L93 Difference]: Finished difference Result 324 states and 373 transitions. [2020-10-24 00:34:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 00:34:38,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-24 00:34:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:38,312 INFO L225 Difference]: With dead ends: 324 [2020-10-24 00:34:38,312 INFO L226 Difference]: Without dead ends: 159 [2020-10-24 00:34:38,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:38,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-24 00:34:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-10-24 00:34:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-24 00:34:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 163 transitions. [2020-10-24 00:34:38,384 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 163 transitions. Word has length 53 [2020-10-24 00:34:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:38,384 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 163 transitions. [2020-10-24 00:34:38,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 00:34:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 163 transitions. [2020-10-24 00:34:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-24 00:34:38,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:38,389 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, 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] [2020-10-24 00:34:38,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:34:38,390 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:38,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:38,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1290234402, now seen corresponding path program 1 times [2020-10-24 00:34:38,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:38,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227038845] [2020-10-24 00:34:38,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 00:34:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-24 00:34:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-24 00:34:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 00:34:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 00:34:38,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227038845] [2020-10-24 00:34:38,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 00:34:38,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 00:34:38,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501596054] [2020-10-24 00:34:38,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 00:34:38,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 00:34:38,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 00:34:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-24 00:34:38,745 INFO L87 Difference]: Start difference. First operand 159 states and 163 transitions. Second operand 5 states. [2020-10-24 00:34:39,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 00:34:39,373 INFO L93 Difference]: Finished difference Result 168 states and 171 transitions. [2020-10-24 00:34:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 00:34:39,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-10-24 00:34:39,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 00:34:39,377 INFO L225 Difference]: With dead ends: 168 [2020-10-24 00:34:39,377 INFO L226 Difference]: Without dead ends: 159 [2020-10-24 00:34:39,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 00:34:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-24 00:34:39,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-10-24 00:34:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-24 00:34:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 162 transitions. [2020-10-24 00:34:39,399 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 162 transitions. Word has length 78 [2020-10-24 00:34:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 00:34:39,400 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 162 transitions. [2020-10-24 00:34:39,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 00:34:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 162 transitions. [2020-10-24 00:34:39,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-24 00:34:39,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:34:39,404 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, 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] [2020-10-24 00:34:39,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 00:34:39,404 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:34:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:34:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1848202550, now seen corresponding path program 1 times [2020-10-24 00:34:39,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:34:39,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675275818] [2020-10-24 00:34:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:34:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:39,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:34:39,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:34:39,577 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:34:39,578 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:34:39,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 00:34:39,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:34:39 BoogieIcfgContainer [2020-10-24 00:34:39,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:34:39,696 INFO L168 Benchmark]: Toolchain (without parser) took 4099.32 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 140.2 MB in the beginning and 79.6 MB in the end (delta: 60.6 MB). Peak memory consumption was 95.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:39,699 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 164.6 MB. Free memory is still 138.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:34:39,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.29 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 128.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:39,701 INFO L168 Benchmark]: Boogie Preprocessor took 58.01 ms. Allocated memory is still 164.6 MB. Free memory was 128.4 MB in the beginning and 126.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:39,703 INFO L168 Benchmark]: RCFGBuilder took 899.01 ms. Allocated memory is still 164.6 MB. Free memory was 126.2 MB in the beginning and 130.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:39,705 INFO L168 Benchmark]: TraceAbstraction took 2832.22 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 129.5 MB in the beginning and 79.6 MB in the end (delta: 49.9 MB). Peak memory consumption was 83.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:34:39,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 164.6 MB. Free memory is still 138.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 298.29 ms. Allocated memory is still 164.6 MB. Free memory was 139.6 MB in the beginning and 128.4 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.01 ms. Allocated memory is still 164.6 MB. Free memory was 128.4 MB in the beginning and 126.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 899.01 ms. Allocated memory is still 164.6 MB. Free memory was 126.2 MB in the beginning and 130.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2832.22 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 129.5 MB in the beginning and 79.6 MB in the end (delta: 49.9 MB). Peak memory consumption was 83.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 106, overapproximation of bitwiseAnd at line 95. Possible FailurePath: [L14] static const float one_modf = 1.0; VAL [\old(one_modf)=2139095048, one_modf=1] [L106] float x = -1.0f / 0.0f; VAL [one_modf=1] [L107] float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=2139095043, iptr={8:0}, one_modf=1] [L108] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=2139095044, iptr={8:0}, one_modf=1] [L17] __int32_t i0, j0; VAL [\old(x)=2139095044, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L18] __uint32_t i; VAL [\old(x)=2139095044, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L20] ieee_float_shape_type gf_u; VAL [\old(x)=2139095044, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L21] gf_u.value = (x) VAL [\old(x)=2139095044, gf_u={9:0}, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L22] EXPR gf_u.word VAL [\old(x)=2139095044, gf_u={9:0}, gf_u.word=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L22] (i0) = gf_u.word VAL [(i0) = gf_u.word=2139095055, \old(x)=2139095044, gf_u={9:0}, gf_u.word=0, i0=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L24] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, one_modf=1, x=2139095044] [L25] COND TRUE j0 < 23 VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L26] COND TRUE j0 < 0 VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L28] ieee_float_shape_type sf_u; VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=2139095044] [L29] sf_u.word = (i0 & 0x80000000) VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, x=2139095044] [L30] EXPR sf_u.value VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=2139095046, x=2139095044] [L30] (*iptr) = sf_u.value VAL [\old(x)=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, sf_u={10:0}, sf_u.value=2139095046, x=2139095044] [L32] return x; VAL [\old(x)=2139095044, \result=2139095044, i0=0, iptr={8:0}, iptr={8:0}, j0=-1, one_modf=1, x=2139095044] [L108] RET, EXPR modf_float(x, &iptr) VAL [iptr={8:0}, modf_float(x, &iptr)=2139095044, one_modf=1, x=2139095044] [L108] float res = modf_float(x, &iptr); VAL [iptr={8:0}, modf_float(x, &iptr)=2139095044, one_modf=1, res=2139095044, x=2139095044] [L111] EXPR \read(iptr) VAL [\read(iptr)=2139095046, iptr={8:0}, one_modf=1, res=2139095044, x=2139095044] [L111] CALL, EXPR isinf_float(iptr) VAL [\old(x)=2139095046, one_modf=1] [L89] __int32_t ix; VAL [\old(x)=2139095046, one_modf=1, x=2139095046] [L91] ieee_float_shape_type gf_u; VAL [\old(x)=2139095046, gf_u={3:0}, one_modf=1, x=2139095046] [L92] gf_u.value = (x) VAL [\old(x)=2139095046, gf_u={3:0}, one_modf=1, x=2139095046] [L93] EXPR gf_u.word VAL [\old(x)=2139095046, gf_u={3:0}, gf_u.word=0, one_modf=1, x=2139095046] [L93] (ix) = gf_u.word VAL [(ix) = gf_u.word=2139095054, \old(x)=2139095046, gf_u={3:0}, gf_u.word=0, ix=0, one_modf=1, x=2139095046] [L95] ix &= 0x7fffffff VAL [\old(x)=2139095046, one_modf=1, x=2139095046] [L96] return ((ix) == 0x7f800000L); VAL [\old(x)=2139095046, \result=1, ix=2139095040, one_modf=1, x=2139095046] [L111] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, one_modf=1, res=2139095044, x=2139095044] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=2139095044, x=2139095044] [L111] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=2139095044, res == -0.0f && __signbit_float(res) == 1=0, x=2139095044] [L111] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=2139095044, res == -0.0f && __signbit_float(res) == 1=0, x=2139095044] [L111] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=2139095046, iptr={8:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=2139095044, res == -0.0f && __signbit_float(res) == 1=0, x=2139095044] [L112] CALL reach_error() VAL [one_modf=1] [L3] __assert_fail("0", "float_req_bl_1211b.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 176 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 328 SDtfs, 46 SDslu, 335 SDs, 0 SdLazy, 443 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=176occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 16063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 Received shutdown request...