/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_1032a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:41:42,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:41:42,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:41:42,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:41:42,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:41:42,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:41:42,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:41:42,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:41:42,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:41:42,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:41:42,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:41:42,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:41:42,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:41:42,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:41:42,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:41:42,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:41:42,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:41:42,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:41:42,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:41:42,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:41:42,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:41:42,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:41:42,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:41:42,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:41:42,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 14:41:42,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:41:42,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:41:42,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:41:42,169 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 14:41:42,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:41:42,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:41:42,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:41:42,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:41:42,186 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:41:42,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:41:42,187 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:41:42,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:41:42,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:41:42,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:41:42,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:41:42,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:41:42,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:41:42,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:41:42,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:41:42,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:41:42,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:41:42,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:41:42,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:41:42,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:41:42,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:41:42,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:41:42,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:41:42,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:41:42,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:41:42,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:41:42,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:41:42,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:41:42,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:41:42,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:41:42,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:41:42,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:41:42,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:41:42,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:41:42,508 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:41:42,509 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032a.c [2020-07-10 14:41:42,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8859cf766/5379122604534c659b420496069e61ef/FLAGbf048afc9 [2020-07-10 14:41:43,143 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:41:43,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032a.c [2020-07-10 14:41:43,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8859cf766/5379122604534c659b420496069e61ef/FLAGbf048afc9 [2020-07-10 14:41:43,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8859cf766/5379122604534c659b420496069e61ef [2020-07-10 14:41:43,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:41:43,478 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:41:43,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:41:43,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:41:43,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:41:43,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3c6f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43, skipping insertion in model container [2020-07-10 14:41:43,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:41:43,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:41:43,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:41:43,753 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:41:43,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:41:43,812 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:41:43,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43 WrapperNode [2020-07-10 14:41:43,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:41:43,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:41:43,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:41:43,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:41:43,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (1/1) ... [2020-07-10 14:41:43,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:41:43,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:41:43,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:41:43,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:41:43,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (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 14:41:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:41:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:41:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-10 14:41:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-10 14:41:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:41:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:41:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:41:44,477 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:41:44,478 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 14:41:44,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:44 BoogieIcfgContainer [2020-07-10 14:41:44,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:41:44,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:41:44,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:41:44,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:41:44,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:41:43" (1/3) ... [2020-07-10 14:41:44,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8696c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:41:44, skipping insertion in model container [2020-07-10 14:41:44,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:41:43" (2/3) ... [2020-07-10 14:41:44,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8696c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:41:44, skipping insertion in model container [2020-07-10 14:41:44,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:41:44" (3/3) ... [2020-07-10 14:41:44,492 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-07-10 14:41:44,504 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:41:44,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:41:44,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:41:44,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:41:44,554 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:41:44,554 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:41:44,554 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:41:44,557 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:41:44,558 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:41:44,558 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:41:44,558 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:41:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-07-10 14:41:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-10 14:41:44,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:41:44,589 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 14:41:44,589 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:41:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:41:44,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1483749764, now seen corresponding path program 1 times [2020-07-10 14:41:44,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:41:44,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746193747] [2020-07-10 14:41:44,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:41:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,870 INFO L280 TraceCheckUtils]: 0: Hoare triple {53#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {41#true} is VALID [2020-07-10 14:41:44,871 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#true} assume true; {41#true} is VALID [2020-07-10 14:41:44,871 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {41#true} {41#true} #95#return; {41#true} is VALID [2020-07-10 14:41:44,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:41:44,937 INFO L280 TraceCheckUtils]: 0: Hoare triple {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; {41#true} is VALID [2020-07-10 14:41:44,939 INFO L280 TraceCheckUtils]: 1: Hoare triple {41#true} assume !true; {42#false} is VALID [2020-07-10 14:41:44,939 INFO L280 TraceCheckUtils]: 2: Hoare triple {42#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {42#false} is VALID [2020-07-10 14:41:44,940 INFO L280 TraceCheckUtils]: 3: Hoare triple {42#false} assume !(~exponent_less_127~0 < 23); {42#false} is VALID [2020-07-10 14:41:44,941 INFO L280 TraceCheckUtils]: 4: Hoare triple {42#false} assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {42#false} is VALID [2020-07-10 14:41:44,941 INFO L280 TraceCheckUtils]: 5: Hoare triple {42#false} assume true; {42#false} is VALID [2020-07-10 14:41:44,941 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {42#false} {41#true} #91#return; {42#false} is VALID [2020-07-10 14:41:44,945 INFO L263 TraceCheckUtils]: 0: Hoare triple {41#true} call ULTIMATE.init(); {53#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 14:41:44,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {41#true} is VALID [2020-07-10 14:41:44,946 INFO L280 TraceCheckUtils]: 2: Hoare triple {41#true} assume true; {41#true} is VALID [2020-07-10 14:41:44,947 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {41#true} {41#true} #95#return; {41#true} is VALID [2020-07-10 14:41:44,947 INFO L263 TraceCheckUtils]: 4: Hoare triple {41#true} call #t~ret9 := main(); {41#true} is VALID [2020-07-10 14:41:44,947 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#true} ~x~0 := 0.0; {41#true} is VALID [2020-07-10 14:41:44,952 INFO L263 TraceCheckUtils]: 6: Hoare triple {41#true} call #t~ret6 := round_float(~x~0); {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 14:41:44,953 INFO L280 TraceCheckUtils]: 7: Hoare triple {54#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~w~0;havoc ~exponent_less_127~0; {41#true} is VALID [2020-07-10 14:41:44,955 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#true} assume !true; {42#false} is VALID [2020-07-10 14:41:44,955 INFO L280 TraceCheckUtils]: 9: Hoare triple {42#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {42#false} is VALID [2020-07-10 14:41:44,956 INFO L280 TraceCheckUtils]: 10: Hoare triple {42#false} assume !(~exponent_less_127~0 < 23); {42#false} is VALID [2020-07-10 14:41:44,956 INFO L280 TraceCheckUtils]: 11: Hoare triple {42#false} assume 128 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {42#false} is VALID [2020-07-10 14:41:44,957 INFO L280 TraceCheckUtils]: 12: Hoare triple {42#false} assume true; {42#false} is VALID [2020-07-10 14:41:44,957 INFO L275 TraceCheckUtils]: 13: Hoare quadruple {42#false} {41#true} #91#return; {42#false} is VALID [2020-07-10 14:41:44,960 INFO L280 TraceCheckUtils]: 14: Hoare triple {42#false} ~res~0 := #t~ret6;havoc #t~ret6;#t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {42#false} is VALID [2020-07-10 14:41:44,960 INFO L280 TraceCheckUtils]: 15: Hoare triple {42#false} assume !#t~short8; {42#false} is VALID [2020-07-10 14:41:44,961 INFO L280 TraceCheckUtils]: 16: Hoare triple {42#false} assume !#t~short8;havoc #t~short8;havoc #t~ret7; {42#false} is VALID [2020-07-10 14:41:44,961 INFO L280 TraceCheckUtils]: 17: Hoare triple {42#false} assume !false; {42#false} is VALID [2020-07-10 14:41:44,965 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 14:41:44,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746193747] [2020-07-10 14:41:44,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:41:44,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:41:44,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407755191] [2020-07-10 14:41:44,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:41:44,985 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:41:44,989 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:41:45,048 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 14:41:45,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:41:45,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:41:45,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:41:45,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:41:45,062 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2020-07-10 14:41:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:45,448 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2020-07-10 14:41:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:41:45,448 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-10 14:41:45,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:41:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:41:45,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2020-07-10 14:41:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:41:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2020-07-10 14:41:45,469 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 93 transitions. [2020-07-10 14:41:45,600 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 93 edges. 93 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:41:45,614 INFO L225 Difference]: With dead ends: 68 [2020-07-10 14:41:45,615 INFO L226 Difference]: Without dead ends: 34 [2020-07-10 14:41:45,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:41:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-10 14:41:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-10 14:41:45,681 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:41:45,682 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-10 14:41:45,683 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-10 14:41:45,683 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-10 14:41:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:45,688 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-07-10 14:41:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-07-10 14:41:45,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:41:45,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:41:45,690 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-10 14:41:45,690 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-10 14:41:45,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:41:45,695 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-07-10 14:41:45,695 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-07-10 14:41:45,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:41:45,696 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:41:45,696 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:41:45,697 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:41:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-10 14:41:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-07-10 14:41:45,701 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2020-07-10 14:41:45,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:41:45,702 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-07-10 14:41:45,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:41:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-07-10 14:41:45,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-10 14:41:45,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:41:45,704 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 14:41:45,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:41:45,704 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:41:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:41:45,705 INFO L82 PathProgramCache]: Analyzing trace with hash 262345377, now seen corresponding path program 1 times [2020-07-10 14:41:45,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:41:45,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385916653] [2020-07-10 14:41:45,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:41:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:41:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:41:45,827 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:41:45,828 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:41:45,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:41:45,857 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:41:45,857 WARN L170 areAnnotationChecker]: round_floatENTRY has no Hoare annotation [2020-07-10 14:41:45,857 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:41:45,857 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:41:45,857 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L58-2 has no Hoare annotation [2020-07-10 14:41:45,858 WARN L170 areAnnotationChecker]: L58-2 has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:41:45,859 WARN L170 areAnnotationChecker]: L76-1 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L58-3 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-10 14:41:45,860 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L79-1 has no Hoare annotation [2020-07-10 14:41:45,861 WARN L170 areAnnotationChecker]: L79-1 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L79-4 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L79-4 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-10 14:41:45,862 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: round_floatFINAL has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: L79-2 has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:41:45,863 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: round_floatEXIT has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-10 14:41:45,864 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-10 14:41:45,864 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 14:41:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:41:45 BoogieIcfgContainer [2020-07-10 14:41:45,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:41:45,871 INFO L168 Benchmark]: Toolchain (without parser) took 2391.76 ms. Allocated memory was 145.8 MB in the beginning and 235.9 MB in the end (delta: 90.2 MB). Free memory was 101.9 MB in the beginning and 154.1 MB in the end (delta: -52.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,872 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 14:41:45,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.29 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 90.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,874 INFO L168 Benchmark]: Boogie Preprocessor took 145.10 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 179.0 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,875 INFO L168 Benchmark]: RCFGBuilder took 524.20 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 152.1 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,875 INFO L168 Benchmark]: TraceAbstraction took 1383.32 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 151.1 MB in the beginning and 154.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-10 14:41:45,879 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 145.8 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 333.29 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 90.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.10 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 90.4 MB in the beginning and 179.0 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 524.20 ms. Allocated memory is still 202.4 MB. Free memory was 179.0 MB in the beginning and 152.1 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1383.32 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 151.1 MB in the beginning and 154.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = 0.0f; VAL [x=0] [L76] CALL, EXPR round_float(x) VAL [\old(x)=0] [L13] __uint32_t w; [L15] int exponent_less_127; VAL [\old(x)=0, x=0] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (w) = gf_u.word [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=128, w=2139095046, x=0] [L25] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=128, w=2139095046, x=0] [L41] COND TRUE exponent_less_127 == 128 [L43] return x + x; VAL [\old(x)=0, exponent_less_127=128, w=2139095046, x=0] [L76] RET, EXPR round_float(x) VAL [round_float(x)=2139095042, x=0] [L76] float res = round_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=2139095042, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [res=2139095042, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 32 SDslu, 5 SDs, 0 SdLazy, 42 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 646 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...