/usr/bin/java -ea -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:43,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:43,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:43,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:43,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:43,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:43,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:43,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:43,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:43,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:43,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:43,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:43,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:43,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:43,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:43,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:43,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:43,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:43,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:43,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:43,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:43,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:43,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:43,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:43,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:43,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:43,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:43,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:43,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:05:43,617 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:43,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:43,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:43,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:43,619 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:43,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:43,620 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:43,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:43,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:43,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:43,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:43,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:43,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:43,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:43,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:43,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:43,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:43,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:43,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:43,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:43,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:43,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:43,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:43,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:43,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:43,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:43,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:43,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:43,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:43,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:43,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:43,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:43,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:43,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:43,942 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:43,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-07-17 22:05:44,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f4fa337/29a1a5d4e4b144dab723731c092d4615/FLAG0b172f19a [2020-07-17 22:05:44,452 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:44,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-07-17 22:05:44,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f4fa337/29a1a5d4e4b144dab723731c092d4615/FLAG0b172f19a [2020-07-17 22:05:44,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03f4fa337/29a1a5d4e4b144dab723731c092d4615 [2020-07-17 22:05:44,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:44,815 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:44,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:44,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:44,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:44,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:44" (1/1) ... [2020-07-17 22:05:44,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7467a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:44, skipping insertion in model container [2020-07-17 22:05:44,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:44" (1/1) ... [2020-07-17 22:05:44,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:44,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:45,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:45,129 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:45,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:45,272 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:45,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45 WrapperNode [2020-07-17 22:05:45,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:45,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:45,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:45,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:45,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (1/1) ... [2020-07-17 22:05:45,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:45,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:45,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:45,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:45,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (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 [2020-07-17 22:05:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2020-07-17 22:05:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-17 22:05:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2020-07-17 22:05:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-17 22:05:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:45,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:45,971 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-17 22:05:45,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:45 BoogieIcfgContainer [2020-07-17 22:05:45,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:45,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:45,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:45,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:45,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:44" (1/3) ... [2020-07-17 22:05:45,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50391d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:45, skipping insertion in model container [2020-07-17 22:05:45,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:45" (2/3) ... [2020-07-17 22:05:45,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50391d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:45, skipping insertion in model container [2020-07-17 22:05:45,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:45" (3/3) ... [2020-07-17 22:05:45,985 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-07-17 22:05:45,995 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:46,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:46,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:46,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:46,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:46,044 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:46,044 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:46,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:46,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:46,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:46,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-17 22:05:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-17 22:05:46,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:46,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:46,072 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:46,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:46,079 INFO L82 PathProgramCache]: Analyzing trace with hash 263185431, now seen corresponding path program 1 times [2020-07-17 22:05:46,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:46,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984824173] [2020-07-17 22:05:46,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:46,308 INFO L280 TraceCheckUtils]: 0: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_ceil~0 := 1.0E30; {46#true} is VALID [2020-07-17 22:05:46,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-17 22:05:46,309 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-17 22:05:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:46,343 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {46#true} is VALID [2020-07-17 22:05:46,345 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-17 22:05:46,346 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {47#false} is VALID [2020-07-17 22:05:46,346 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#false} assume !(~j0~0 < 23); {47#false} is VALID [2020-07-17 22:05:46,346 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {47#false} is VALID [2020-07-17 22:05:46,347 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-17 22:05:46,347 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {47#false} {46#true} #118#return; {47#false} is VALID [2020-07-17 22:05:46,350 INFO L263 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {58#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} is VALID [2020-07-17 22:05:46,351 INFO L280 TraceCheckUtils]: 1: Hoare triple {58#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_ceil~0 := 1.0E30; {46#true} is VALID [2020-07-17 22:05:46,351 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-17 22:05:46,351 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-17 22:05:46,352 INFO L263 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret9 := main(); {46#true} is VALID [2020-07-17 22:05:46,352 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {46#true} is VALID [2020-07-17 22:05:46,358 INFO L263 TraceCheckUtils]: 6: Hoare triple {46#true} call #t~ret6 := ceil_float(~x~0); {59#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:46,358 INFO L280 TraceCheckUtils]: 7: Hoare triple {59#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~i0~0;havoc ~j0~0;havoc ~i~0;havoc ~ix~0; {46#true} is VALID [2020-07-17 22:05:46,359 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-17 22:05:46,360 INFO L280 TraceCheckUtils]: 9: Hoare triple {47#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647);~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {47#false} is VALID [2020-07-17 22:05:46,360 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#false} assume !(~j0~0 < 23); {47#false} is VALID [2020-07-17 22:05:46,361 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {47#false} is VALID [2020-07-17 22:05:46,361 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-17 22:05:46,362 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {47#false} {46#true} #118#return; {47#false} is VALID [2020-07-17 22:05:46,362 INFO L280 TraceCheckUtils]: 14: Hoare triple {47#false} ~res~0 := #t~ret6;havoc #t~ret6;#t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {47#false} is VALID [2020-07-17 22:05:46,362 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#false} assume !#t~short8; {47#false} is VALID [2020-07-17 22:05:46,363 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#false} assume !#t~short8;havoc #t~short8;havoc #t~ret7; {47#false} is VALID [2020-07-17 22:05:46,363 INFO L280 TraceCheckUtils]: 17: Hoare triple {47#false} assume !false; {47#false} is VALID [2020-07-17 22:05:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:05:46,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984824173] [2020-07-17 22:05:46,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:46,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:46,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893136541] [2020-07-17 22:05:46,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-17 22:05:46,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:46,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:46,420 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:46,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:46,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:46,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:46,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:46,433 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 4 states. [2020-07-17 22:05:46,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:46,885 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2020-07-17 22:05:46,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:46,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-17 22:05:46,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:46,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:46,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2020-07-17 22:05:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2020-07-17 22:05:46,930 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 111 transitions. [2020-07-17 22:05:47,111 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:47,124 INFO L225 Difference]: With dead ends: 78 [2020-07-17 22:05:47,125 INFO L226 Difference]: Without dead ends: 39 [2020-07-17 22:05:47,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:05:47,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-17 22:05:47,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-17 22:05:47,193 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:47,194 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2020-07-17 22:05:47,194 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-17 22:05:47,195 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-17 22:05:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:47,200 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-07-17 22:05:47,200 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-17 22:05:47,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:47,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:47,201 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-17 22:05:47,201 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-17 22:05:47,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:47,206 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-07-17 22:05:47,206 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-17 22:05:47,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:47,207 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:47,207 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:47,208 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-17 22:05:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-07-17 22:05:47,213 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2020-07-17 22:05:47,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:47,213 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-07-17 22:05:47,213 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:47,214 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-17 22:05:47,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 22:05:47,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:47,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:47,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:47,216 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:47,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1491196875, now seen corresponding path program 1 times [2020-07-17 22:05:47,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:47,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555916320] [2020-07-17 22:05:47,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:47,433 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:47,434 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:47,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:47,469 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:47,469 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:47,470 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:47,470 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:47,470 WARN L170 areAnnotationChecker]: ceil_floatENTRY has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-17 22:05:47,471 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: L77-1 has no Hoare annotation [2020-07-17 22:05:47,472 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-17 22:05:47,473 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-17 22:05:47,473 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-17 22:05:47,473 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-17 22:05:47,473 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-17 22:05:47,473 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-17 22:05:47,474 WARN L170 areAnnotationChecker]: L80-4 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L80-4 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-17 22:05:47,475 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-17 22:05:47,476 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-17 22:05:47,476 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-17 22:05:47,476 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:47,476 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: ceil_floatFINAL has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:47,477 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:05:47,478 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-17 22:05:47,478 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:05:47,478 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-17 22:05:47,478 WARN L170 areAnnotationChecker]: ceil_floatEXIT has no Hoare annotation [2020-07-17 22:05:47,478 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:47,480 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-17 22:05:47,481 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-17 22:05:47,481 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:05:47,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:47 BoogieIcfgContainer [2020-07-17 22:05:47,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:47,491 INFO L168 Benchmark]: Toolchain (without parser) took 2675.61 ms. Allocated memory was 135.3 MB in the beginning and 226.5 MB in the end (delta: 91.2 MB). Free memory was 100.0 MB in the beginning and 127.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,493 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.63 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 178.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,495 INFO L168 Benchmark]: Boogie Preprocessor took 65.73 ms. Allocated memory is still 199.2 MB. Free memory was 178.1 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,496 INFO L168 Benchmark]: RCFGBuilder took 636.31 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 143.8 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,498 INFO L168 Benchmark]: TraceAbstraction took 1509.30 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 143.1 MB in the beginning and 127.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:47,514 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 456.63 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 178.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.73 ms. Allocated memory is still 199.2 MB. Free memory was 178.1 MB in the beginning and 175.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 636.31 ms. Allocated memory is still 199.2 MB. Free memory was 175.4 MB in the beginning and 143.8 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1509.30 ms. Allocated memory was 199.2 MB in the beginning and 226.5 MB in the end (delta: 27.3 MB). Free memory was 143.1 MB in the beginning and 127.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of bitwiseAnd at line 21, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=1000000000000000000000000000004, huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000005] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000005] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000005] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=1000000000000000000000000000005, huge_ceil=1000000000000000000000000000000, i=18014396353609728, i0=-1, j0=2147483264, x=1000000000000000000000000000005] [L77] RET, EXPR ceil_float(x) VAL [ceil_float(x)=1000000000000000000000000000002, huge_ceil=1000000000000000000000000000000, x=1000000000000000000000000000005] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, x=1000000000000000000000000000005] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=1000000000000000000000000000002, x=1000000000000000000000000000005] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 41 SDslu, 5 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...