/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:23,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:23,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:23,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:23,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:23,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:23,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:23,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:23,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:23,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:23,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:23,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:23,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:23,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:23,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:23,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:23,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:23,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:23,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:23,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:23,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:23,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:23,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:23,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:23,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:23,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 18:35:23,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 18:35:23,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 18:35:23,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 18:35:23,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 18:35:23,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 18:35:23,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 18:35:23,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 18:35:23,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:23,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:23,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:23,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:23,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:23,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:23,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:23,176 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:23,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:23,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:23,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:23,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:23,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:23,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:23,178 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:23,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:23,179 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:23,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:23,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:23,179 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:23,180 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:23,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:23,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:23,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:23,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:23,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:23,181 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:23,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:23,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:23,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:23,478 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:23,478 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:23,479 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1031.c [2020-07-10 18:35:23,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad497c5ff/383b88ac0d4845d4846060976cd3bd0d/FLAGd4c1492bd [2020-07-10 18:35:23,981 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:23,982 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1031.c [2020-07-10 18:35:23,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad497c5ff/383b88ac0d4845d4846060976cd3bd0d/FLAGd4c1492bd [2020-07-10 18:35:24,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad497c5ff/383b88ac0d4845d4846060976cd3bd0d [2020-07-10 18:35:24,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:24,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:24,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:24,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:24,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:24,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62af41c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24, skipping insertion in model container [2020-07-10 18:35:24,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:24,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:24,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:24,639 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:24,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:24,769 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:24,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24 WrapperNode [2020-07-10 18:35:24,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:24,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:24,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:24,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:24,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (1/1) ... [2020-07-10 18:35:24,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:24,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:24,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:24,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:24,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (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 18:35:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-10 18:35:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-10 18:35:24,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-10 18:35:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:24,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-10 18:35:24,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:24,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:25,352 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:25,352 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-10 18:35:25,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:25 BoogieIcfgContainer [2020-07-10 18:35:25,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:25,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:25,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:25,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:25,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:24" (1/3) ... [2020-07-10 18:35:25,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40774290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:25, skipping insertion in model container [2020-07-10 18:35:25,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:24" (2/3) ... [2020-07-10 18:35:25,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40774290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:25, skipping insertion in model container [2020-07-10 18:35:25,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:25" (3/3) ... [2020-07-10 18:35:25,374 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-07-10 18:35:25,385 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:25,394 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:25,407 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:25,427 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:25,427 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:25,427 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:25,428 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:25,428 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:25,428 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:25,428 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:25,428 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-07-10 18:35:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-10 18:35:25,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:25,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:35:25,454 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:25,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:25,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1002488425, now seen corresponding path program 1 times [2020-07-10 18:35:25,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:25,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069603757] [2020-07-10 18:35:25,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:25,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:25,668 INFO L280 TraceCheckUtils]: 0: Hoare triple {92#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {71#true} is VALID [2020-07-10 18:35:25,668 INFO L280 TraceCheckUtils]: 1: Hoare triple {71#true} #valid := #valid[0 := 0]; {71#true} is VALID [2020-07-10 18:35:25,669 INFO L280 TraceCheckUtils]: 2: Hoare triple {71#true} assume 0 < #StackHeapBarrier; {71#true} is VALID [2020-07-10 18:35:25,669 INFO L280 TraceCheckUtils]: 3: Hoare triple {71#true} assume true; {71#true} is VALID [2020-07-10 18:35:25,670 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {71#true} {71#true} #106#return; {71#true} is VALID [2020-07-10 18:35:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:25,702 INFO L280 TraceCheckUtils]: 0: Hoare triple {93#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {71#true} is VALID [2020-07-10 18:35:25,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {71#true} havoc ~w~0; {71#true} is VALID [2020-07-10 18:35:25,704 INFO L280 TraceCheckUtils]: 2: Hoare triple {71#true} havoc ~exponent_less_127~0; {71#true} is VALID [2020-07-10 18:35:25,705 INFO L280 TraceCheckUtils]: 3: Hoare triple {71#true} assume !true; {72#false} is VALID [2020-07-10 18:35:25,705 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#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; {72#false} is VALID [2020-07-10 18:35:25,706 INFO L280 TraceCheckUtils]: 5: Hoare triple {72#false} assume !(~exponent_less_127~0 < 23); {72#false} is VALID [2020-07-10 18:35:25,706 INFO L280 TraceCheckUtils]: 6: Hoare triple {72#false} assume 128 == ~exponent_less_127~0; {72#false} is VALID [2020-07-10 18:35:25,707 INFO L280 TraceCheckUtils]: 7: Hoare triple {72#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {72#false} is VALID [2020-07-10 18:35:25,707 INFO L280 TraceCheckUtils]: 8: Hoare triple {72#false} assume true; {72#false} is VALID [2020-07-10 18:35:25,708 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {72#false} {71#true} #110#return; {72#false} is VALID [2020-07-10 18:35:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:25,717 INFO L280 TraceCheckUtils]: 0: Hoare triple {71#true} ~x := #in~x; {71#true} is VALID [2020-07-10 18:35:25,718 INFO L280 TraceCheckUtils]: 1: Hoare triple {71#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {71#true} is VALID [2020-07-10 18:35:25,719 INFO L280 TraceCheckUtils]: 2: Hoare triple {71#true} assume true; {71#true} is VALID [2020-07-10 18:35:25,719 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {71#true} {72#false} #112#return; {72#false} is VALID [2020-07-10 18:35:25,721 INFO L263 TraceCheckUtils]: 0: Hoare triple {71#true} call ULTIMATE.init(); {92#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 18:35:25,722 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {71#true} is VALID [2020-07-10 18:35:25,722 INFO L280 TraceCheckUtils]: 2: Hoare triple {71#true} #valid := #valid[0 := 0]; {71#true} is VALID [2020-07-10 18:35:25,723 INFO L280 TraceCheckUtils]: 3: Hoare triple {71#true} assume 0 < #StackHeapBarrier; {71#true} is VALID [2020-07-10 18:35:25,723 INFO L280 TraceCheckUtils]: 4: Hoare triple {71#true} assume true; {71#true} is VALID [2020-07-10 18:35:25,723 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {71#true} {71#true} #106#return; {71#true} is VALID [2020-07-10 18:35:25,724 INFO L263 TraceCheckUtils]: 6: Hoare triple {71#true} call #t~ret6 := main(); {71#true} is VALID [2020-07-10 18:35:25,724 INFO L280 TraceCheckUtils]: 7: Hoare triple {71#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {71#true} is VALID [2020-07-10 18:35:25,726 INFO L263 TraceCheckUtils]: 8: Hoare triple {71#true} call #t~ret4 := round_float(~x~0); {93#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:35:25,727 INFO L280 TraceCheckUtils]: 9: Hoare triple {93#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {71#true} is VALID [2020-07-10 18:35:25,727 INFO L280 TraceCheckUtils]: 10: Hoare triple {71#true} havoc ~w~0; {71#true} is VALID [2020-07-10 18:35:25,728 INFO L280 TraceCheckUtils]: 11: Hoare triple {71#true} havoc ~exponent_less_127~0; {71#true} is VALID [2020-07-10 18:35:25,729 INFO L280 TraceCheckUtils]: 12: Hoare triple {71#true} assume !true; {72#false} is VALID [2020-07-10 18:35:25,729 INFO L280 TraceCheckUtils]: 13: Hoare triple {72#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; {72#false} is VALID [2020-07-10 18:35:25,730 INFO L280 TraceCheckUtils]: 14: Hoare triple {72#false} assume !(~exponent_less_127~0 < 23); {72#false} is VALID [2020-07-10 18:35:25,730 INFO L280 TraceCheckUtils]: 15: Hoare triple {72#false} assume 128 == ~exponent_less_127~0; {72#false} is VALID [2020-07-10 18:35:25,730 INFO L280 TraceCheckUtils]: 16: Hoare triple {72#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {72#false} is VALID [2020-07-10 18:35:25,731 INFO L280 TraceCheckUtils]: 17: Hoare triple {72#false} assume true; {72#false} is VALID [2020-07-10 18:35:25,731 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {72#false} {71#true} #110#return; {72#false} is VALID [2020-07-10 18:35:25,732 INFO L280 TraceCheckUtils]: 19: Hoare triple {72#false} ~res~0 := #t~ret4; {72#false} is VALID [2020-07-10 18:35:25,732 INFO L280 TraceCheckUtils]: 20: Hoare triple {72#false} havoc #t~ret4; {72#false} is VALID [2020-07-10 18:35:25,733 INFO L263 TraceCheckUtils]: 21: Hoare triple {72#false} call #t~ret5 := isnan_float(~res~0); {71#true} is VALID [2020-07-10 18:35:25,733 INFO L280 TraceCheckUtils]: 22: Hoare triple {71#true} ~x := #in~x; {71#true} is VALID [2020-07-10 18:35:25,733 INFO L280 TraceCheckUtils]: 23: Hoare triple {71#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {71#true} is VALID [2020-07-10 18:35:25,734 INFO L280 TraceCheckUtils]: 24: Hoare triple {71#true} assume true; {71#true} is VALID [2020-07-10 18:35:25,734 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {71#true} {72#false} #112#return; {72#false} is VALID [2020-07-10 18:35:25,735 INFO L280 TraceCheckUtils]: 26: Hoare triple {72#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {72#false} is VALID [2020-07-10 18:35:25,735 INFO L280 TraceCheckUtils]: 27: Hoare triple {72#false} assume 0 == #t~ret5; {72#false} is VALID [2020-07-10 18:35:25,735 INFO L280 TraceCheckUtils]: 28: Hoare triple {72#false} havoc #t~ret5; {72#false} is VALID [2020-07-10 18:35:25,736 INFO L280 TraceCheckUtils]: 29: Hoare triple {72#false} assume !false; {72#false} is VALID [2020-07-10 18:35:25,742 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 18:35:25,742 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:25,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069603757] [2020-07-10 18:35:25,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:25,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:25,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034197068] [2020-07-10 18:35:25,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-10 18:35:25,760 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:25,764 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:25,814 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:25,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:25,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:25,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:25,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:25,827 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 4 states. [2020-07-10 18:35:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:26,322 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2020-07-10 18:35:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:26,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-07-10 18:35:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:26,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-10 18:35:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-10 18:35:26,345 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 141 transitions. [2020-07-10 18:35:26,507 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:26,521 INFO L225 Difference]: With dead ends: 123 [2020-07-10 18:35:26,521 INFO L226 Difference]: Without dead ends: 61 [2020-07-10 18:35:26,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 18:35:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-10 18:35:26,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-07-10 18:35:26,609 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:26,610 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 61 states. [2020-07-10 18:35:26,610 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-10 18:35:26,611 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-10 18:35:26,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:26,617 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-07-10 18:35:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-07-10 18:35:26,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:26,618 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:26,618 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-10 18:35:26,618 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-10 18:35:26,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:26,624 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2020-07-10 18:35:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-07-10 18:35:26,625 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:26,625 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:26,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:26,626 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:26,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-10 18:35:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-07-10 18:35:26,631 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 30 [2020-07-10 18:35:26,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:26,632 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-07-10 18:35:26,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:26,632 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states and 65 transitions. [2020-07-10 18:35:26,717 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:26,717 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-07-10 18:35:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-10 18:35:26,719 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:26,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:35:26,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:26,720 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 615125563, now seen corresponding path program 1 times [2020-07-10 18:35:26,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:26,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235668711] [2020-07-10 18:35:26,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:26,929 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:26,930 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-10 18:35:26,930 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 18:35:26,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:26,947 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-10 18:35:26,948 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 18:35:26,948 WARN L170 areAnnotationChecker]: round_floatENTRY has no Hoare annotation [2020-07-10 18:35:26,948 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 18:35:26,948 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 18:35:26,948 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 18:35:26,949 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 18:35:26,950 WARN L170 areAnnotationChecker]: L66-1 has no Hoare annotation [2020-07-10 18:35:26,951 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-10 18:35:26,951 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 18:35:26,951 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 18:35:26,951 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 18:35:26,952 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-10 18:35:26,953 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-10 18:35:26,953 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 18:35:26,953 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 18:35:26,953 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-10 18:35:26,953 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L69-4 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 18:35:26,954 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-10 18:35:26,955 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-10 18:35:26,955 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-10 18:35:26,955 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-10 18:35:26,955 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-10 18:35:26,956 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-10 18:35:26,956 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-10 18:35:26,956 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-10 18:35:26,956 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-10 18:35:26,957 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-10 18:35:26,957 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-10 18:35:26,957 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-10 18:35:26,957 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 18:35:26,958 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-10 18:35:26,958 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 18:35:26,958 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 18:35:26,958 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 18:35:26,958 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-10 18:35:26,959 WARN L170 areAnnotationChecker]: round_floatFINAL has no Hoare annotation [2020-07-10 18:35:26,959 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 18:35:26,959 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-10 18:35:26,960 WARN L170 areAnnotationChecker]: round_floatEXIT has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-10 18:35:26,961 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-10 18:35:26,962 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 18:35:26,962 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-10 18:35:26,962 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 18:35:26,962 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-10 18:35:26,962 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-10 18:35:26,963 WARN L170 areAnnotationChecker]: L49-3 has no Hoare annotation [2020-07-10 18:35:26,963 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-10 18:35:26,963 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-10 18:35:26,963 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 18:35:26,963 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-10 18:35:26,964 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 18:35:26,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 06:35:26 BoogieIcfgContainer [2020-07-10 18:35:26,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 18:35:26,976 INFO L168 Benchmark]: Toolchain (without parser) took 2561.22 ms. Allocated memory was 138.9 MB in the beginning and 236.5 MB in the end (delta: 97.5 MB). Free memory was 103.9 MB in the beginning and 97.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 103.8 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,978 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.41 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 180.9 MB in the end (delta: -77.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,980 INFO L168 Benchmark]: Boogie Preprocessor took 41.75 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 178.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,981 INFO L168 Benchmark]: RCFGBuilder took 548.41 ms. Allocated memory is still 201.9 MB. Free memory was 178.6 MB in the beginning and 148.0 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,983 INFO L168 Benchmark]: TraceAbstraction took 1606.65 ms. Allocated memory was 201.9 MB in the beginning and 236.5 MB in the end (delta: 34.6 MB). Free memory was 147.3 MB in the beginning and 97.6 MB in the end (delta: 49.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:26,996 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 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 356.41 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 180.9 MB in the end (delta: -77.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.75 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 178.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 548.41 ms. Allocated memory is still 201.9 MB. Free memory was 178.6 MB in the beginning and 148.0 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1606.65 ms. Allocated memory was 201.9 MB in the beginning and 236.5 MB in the end (delta: 34.6 MB). Free memory was 147.3 MB in the beginning and 97.6 MB in the end (delta: 49.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L66] CALL, EXPR round_float(x) [L12] __uint32_t w; [L14] int exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; [L66] RET, EXPR round_float(x) [L66] float res = round_float(x); [L69] CALL, EXPR isnan_float(res) [L55] return x != x; [L69] RET, EXPR isnan_float(res) [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 15 SDslu, 49 SDs, 0 SdLazy, 72 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...