/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 0.1.25-8fc6572 [2020-07-10 14:42:08,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:42:08,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:42:08,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:42:08,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:42:08,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:42:08,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:42:08,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:42:08,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:42:08,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:42:08,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:42:08,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:42:08,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:42:08,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:42:08,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:42:08,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:42:08,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:42:08,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:42:08,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:42:08,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:42:08,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:42:08,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:42:08,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:42:08,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:42:08,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 14:42:08,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:42:08,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:42:08,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:42:08,285 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 [2020-07-10 14:42:08,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:42:08,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:42:08,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:42:08,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:42:08,313 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:42:08,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:42:08,314 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:42:08,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:42:08,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:42:08,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:42:08,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:42:08,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:42:08,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:42:08,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:42:08,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:42:08,316 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:42:08,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:42:08,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:42:08,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:42:08,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:42:08,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:42:08,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:42:08,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:42:08,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:42:08,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:42:08,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:42:08,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:42:08,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:42:08,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:42:08,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:42:08,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:42:08,615 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:42:08,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:42:08,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:42:08,621 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:42:08,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-07-10 14:42:08,697 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10c387d2/e3751c47d4e14e05a9d1ee66434ece77/FLAG9011e30cc [2020-07-10 14:42:09,155 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:42:09,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092a.c [2020-07-10 14:42:09,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10c387d2/e3751c47d4e14e05a9d1ee66434ece77/FLAG9011e30cc [2020-07-10 14:42:09,548 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d10c387d2/e3751c47d4e14e05a9d1ee66434ece77 [2020-07-10 14:42:09,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:42:09,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:42:09,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:09,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:42:09,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:42:09,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:09,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53c336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09, skipping insertion in model container [2020-07-10 14:42:09,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:09,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:42:09,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:42:09,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:09,829 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:42:09,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:09,997 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:42:09,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09 WrapperNode [2020-07-10 14:42:09,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:10,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:42:10,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:42:10,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:42:10,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (1/1) ... [2020-07-10 14:42:10,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:42:10,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:42:10,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:42:10,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:42:10,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (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 [2020-07-10 14:42:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:42:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:42:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2020-07-10 14:42:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-10 14:42:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:42:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:42:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2020-07-10 14:42:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:42:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:42:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:42:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:42:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:42:10,686 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:42:10,686 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 14:42:10,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:10 BoogieIcfgContainer [2020-07-10 14:42:10,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:42:10,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:42:10,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:42:10,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:42:10,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:42:09" (1/3) ... [2020-07-10 14:42:10,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e4e2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:10, skipping insertion in model container [2020-07-10 14:42:10,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:09" (2/3) ... [2020-07-10 14:42:10,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e4e2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:10, skipping insertion in model container [2020-07-10 14:42:10,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:10" (3/3) ... [2020-07-10 14:42:10,699 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-07-10 14:42:10,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:42:10,717 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:42:10,731 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:42:10,756 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:42:10,757 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:42:10,757 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:42:10,757 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:42:10,757 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:42:10,757 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:42:10,758 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:42:10,758 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:42:10,774 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-10 14:42:10,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-10 14:42:10,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:10,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:10,784 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:10,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:10,789 INFO L82 PathProgramCache]: Analyzing trace with hash 263185431, now seen corresponding path program 1 times [2020-07-10 14:42:10,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:10,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710328113] [2020-07-10 14:42:10,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:11,007 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 [2020-07-10 14:42:11,008 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-10 14:42:11,008 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-10 14:42:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:42:11,046 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 [2020-07-10 14:42:11,047 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-10 14:42:11,048 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 [2020-07-10 14:42:11,048 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#false} assume !(~j0~0 < 23); {47#false} is VALID [2020-07-10 14:42:11,049 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {47#false} is VALID [2020-07-10 14:42:11,049 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-10 14:42:11,050 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {47#false} {46#true} #118#return; {47#false} is VALID [2020-07-10 14:42:11,052 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 [2020-07-10 14:42:11,053 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 [2020-07-10 14:42:11,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-10 14:42:11,053 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-10 14:42:11,054 INFO L263 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret9 := main(); {46#true} is VALID [2020-07-10 14:42:11,054 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {46#true} is VALID [2020-07-10 14:42:11,056 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 [2020-07-10 14:42:11,057 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 [2020-07-10 14:42:11,058 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-10 14:42:11,058 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 [2020-07-10 14:42:11,059 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#false} assume !(~j0~0 < 23); {47#false} is VALID [2020-07-10 14:42:11,059 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#false} assume !(~ix~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {47#false} is VALID [2020-07-10 14:42:11,059 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-10 14:42:11,060 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {47#false} {46#true} #118#return; {47#false} is VALID [2020-07-10 14:42:11,060 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 [2020-07-10 14:42:11,061 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#false} assume !#t~short8; {47#false} is VALID [2020-07-10 14:42:11,061 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#false} assume !#t~short8;havoc #t~short8;havoc #t~ret7; {47#false} is VALID [2020-07-10 14:42:11,061 INFO L280 TraceCheckUtils]: 17: Hoare triple {47#false} assume !false; {47#false} is VALID [2020-07-10 14:42:11,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:42:11,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710328113] [2020-07-10 14:42:11,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:42:11,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:42:11,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824216065] [2020-07-10 14:42:11,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:42:11,078 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:42:11,082 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:42:11,122 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:11,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:42:11,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:42:11,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:42:11,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:42:11,134 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 4 states. [2020-07-10 14:42:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:11,683 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2020-07-10 14:42:11,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:42:11,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:42:11,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:42:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2020-07-10 14:42:11,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:42:11,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2020-07-10 14:42:11,705 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 111 transitions. [2020-07-10 14:42:11,888 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:42:11,906 INFO L225 Difference]: With dead ends: 78 [2020-07-10 14:42:11,906 INFO L226 Difference]: Without dead ends: 39 [2020-07-10 14:42:11,910 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 [2020-07-10 14:42:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-10 14:42:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-10 14:42:11,980 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:42:11,981 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2020-07-10 14:42:11,981 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-10 14:42:11,981 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-10 14:42:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:11,987 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-07-10 14:42:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-10 14:42:11,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:11,988 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:11,988 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-10 14:42:11,988 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-10 14:42:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:42:11,994 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-07-10 14:42:11,994 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-10 14:42:11,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:42:11,995 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:42:11,995 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:42:11,995 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:42:11,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-10 14:42:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-07-10 14:42:12,001 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2020-07-10 14:42:12,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:42:12,001 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-07-10 14:42:12,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:42:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2020-07-10 14:42:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-10 14:42:12,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:12,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:12,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:42:12,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:12,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:12,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1491196875, now seen corresponding path program 1 times [2020-07-10 14:42:12,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:12,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428559796] [2020-07-10 14:42:12,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:42:12,215 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:42:12,216 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:42:12,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:42:12,248 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:42:12,248 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:12,248 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: ceil_floatENTRY has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:42:12,249 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: L77 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:42:12,250 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L77-1 has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-10 14:42:12,251 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-10 14:42:12,252 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L80-1 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L80-4 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L80-4 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-10 14:42:12,253 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-10 14:42:12,254 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-10 14:42:12,254 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-10 14:42:12,254 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-10 14:42:12,254 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:42:12,254 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: ceil_floatFINAL has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 14:42:12,255 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: ceil_floatEXIT has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:42:12,256 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 14:42:12,257 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-10 14:42:12,257 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. [2020-07-10 14:42:12,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:42:12 BoogieIcfgContainer [2020-07-10 14:42:12,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:42:12,264 INFO L168 Benchmark]: Toolchain (without parser) took 2704.15 ms. Allocated memory was 143.7 MB in the beginning and 232.3 MB in the end (delta: 88.6 MB). Free memory was 99.9 MB in the beginning and 129.4 MB in the end (delta: -29.6 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:12,265 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 14:42:12,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.01 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 99.4 MB in the beginning and 180.5 MB in the end (delta: -81.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:12,267 INFO L168 Benchmark]: Boogie Preprocessor took 88.39 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 177.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:12,268 INFO L168 Benchmark]: RCFGBuilder took 602.05 ms. Allocated memory is still 201.9 MB. Free memory was 177.2 MB in the beginning and 146.0 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:12,269 INFO L168 Benchmark]: TraceAbstraction took 1569.01 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 146.0 MB in the beginning and 129.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 47.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:12,274 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 0.23 ms. Allocated memory is still 143.7 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 439.01 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 99.4 MB in the beginning and 180.5 MB in the end (delta: -81.1 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.39 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 177.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 602.05 ms. Allocated memory is still 201.9 MB. Free memory was 177.2 MB in the beginning and 146.0 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1569.01 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 146.0 MB in the beginning and 129.4 MB in the end (delta: 16.6 MB). Peak memory consumption was 47.0 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: 1.4s, 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...