/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1010.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 21:48:19,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 21:48:19,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 21:48:19,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 21:48:19,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 21:48:19,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 21:48:19,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 21:48:19,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 21:48:19,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 21:48:19,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 21:48:19,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 21:48:19,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 21:48:19,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 21:48:19,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 21:48:19,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 21:48:19,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 21:48:19,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 21:48:19,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 21:48:19,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 21:48:19,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 21:48:19,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 21:48:19,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 21:48:19,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 21:48:19,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 21:48:19,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 21:48:19,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 21:48:19,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 21:48:19,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 21:48:19,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 21:48:19,742 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 21:48:19,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 21:48:19,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 21:48:19,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 21:48:19,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 21:48:19,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 21:48:19,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 21:48:19,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 21:48:19,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 21:48:19,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 21:48:19,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 21:48:19,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 21:48:19,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 21:48:19,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 21:48:19,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 21:48:19,747 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 21:48:19,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 21:48:19,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 21:48:19,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:48:19,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 21:48:19,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 21:48:19,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 21:48:19,748 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 21:48:20,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 21:48:20,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 21:48:20,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 21:48:20,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 21:48:20,035 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 21:48:20,038 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1010.c [2020-07-08 21:48:20,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fb3520c/6b4406ed75a34a28a67b0249bbf7bb3d/FLAGec9bc30ee [2020-07-08 21:48:20,560 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 21:48:20,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1010.c [2020-07-08 21:48:20,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fb3520c/6b4406ed75a34a28a67b0249bbf7bb3d/FLAGec9bc30ee [2020-07-08 21:48:20,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83fb3520c/6b4406ed75a34a28a67b0249bbf7bb3d [2020-07-08 21:48:20,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 21:48:20,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 21:48:20,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:20,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 21:48:20,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 21:48:20,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:20" (1/1) ... [2020-07-08 21:48:20,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719b6a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:20, skipping insertion in model container [2020-07-08 21:48:20,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:20" (1/1) ... [2020-07-08 21:48:20,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 21:48:20,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 21:48:21,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:21,180 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 21:48:21,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:21,240 INFO L208 MainTranslator]: Completed translation [2020-07-08 21:48:21,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21 WrapperNode [2020-07-08 21:48:21,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:21,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 21:48:21,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 21:48:21,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 21:48:21,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (1/1) ... [2020-07-08 21:48:21,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 21:48:21,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 21:48:21,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 21:48:21,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 21:48:21,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (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 [2020-07-08 21:48:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 21:48:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 21:48:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-08 21:48:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-07-08 21:48:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 21:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 21:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-08 21:48:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 21:48:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 21:48:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 21:48:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 21:48:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 21:48:21,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 21:48:21,867 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 21:48:21,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:21 BoogieIcfgContainer [2020-07-08 21:48:21,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 21:48:21,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 21:48:21,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 21:48:21,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 21:48:21,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 09:48:20" (1/3) ... [2020-07-08 21:48:21,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653e63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:21, skipping insertion in model container [2020-07-08 21:48:21,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:21" (2/3) ... [2020-07-08 21:48:21,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653e63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:21, skipping insertion in model container [2020-07-08 21:48:21,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:21" (3/3) ... [2020-07-08 21:48:21,881 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2020-07-08 21:48:21,893 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 21:48:21,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 21:48:21,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 21:48:21,955 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 21:48:21,957 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 21:48:21,957 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 21:48:21,958 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 21:48:21,958 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 21:48:21,958 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 21:48:21,958 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 21:48:21,958 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 21:48:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-07-08 21:48:22,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-08 21:48:22,005 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:22,007 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] [2020-07-08 21:48:22,008 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:22,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:22,019 INFO L82 PathProgramCache]: Analyzing trace with hash -618451774, now seen corresponding path program 1 times [2020-07-08 21:48:22,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:22,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814437261] [2020-07-08 21:48:22,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:22,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {74#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {56#true} is VALID [2020-07-08 21:48:22,274 INFO L280 TraceCheckUtils]: 1: Hoare triple {56#true} #valid := #valid[0 := 0]; {56#true} is VALID [2020-07-08 21:48:22,275 INFO L280 TraceCheckUtils]: 2: Hoare triple {56#true} assume 0 < #StackHeapBarrier; {56#true} is VALID [2020-07-08 21:48:22,275 INFO L280 TraceCheckUtils]: 3: Hoare triple {56#true} assume true; {56#true} is VALID [2020-07-08 21:48:22,275 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {56#true} {56#true} #75#return; {56#true} is VALID [2020-07-08 21:48:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:22,317 INFO L280 TraceCheckUtils]: 0: Hoare triple {75#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {56#true} is VALID [2020-07-08 21:48:22,318 INFO L280 TraceCheckUtils]: 1: Hoare triple {56#true} havoc ~ix~0; {56#true} is VALID [2020-07-08 21:48:22,319 INFO L280 TraceCheckUtils]: 2: Hoare triple {56#true} assume !true; {57#false} is VALID [2020-07-08 21:48:22,319 INFO L280 TraceCheckUtils]: 3: Hoare triple {57#false} assume !true; {57#false} is VALID [2020-07-08 21:48:22,320 INFO L280 TraceCheckUtils]: 4: Hoare triple {57#false} #res := ~x; {57#false} is VALID [2020-07-08 21:48:22,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {57#false} assume true; {57#false} is VALID [2020-07-08 21:48:22,321 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {57#false} {56#true} #71#return; {57#false} is VALID [2020-07-08 21:48:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:22,335 INFO L280 TraceCheckUtils]: 0: Hoare triple {56#true} ~x := #in~x; {56#true} is VALID [2020-07-08 21:48:22,336 INFO L280 TraceCheckUtils]: 1: Hoare triple {56#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {56#true} is VALID [2020-07-08 21:48:22,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {56#true} assume true; {56#true} is VALID [2020-07-08 21:48:22,337 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {56#true} {57#false} #73#return; {57#false} is VALID [2020-07-08 21:48:22,339 INFO L263 TraceCheckUtils]: 0: Hoare triple {56#true} call ULTIMATE.init(); {74#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 21:48:22,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {74#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {56#true} is VALID [2020-07-08 21:48:22,340 INFO L280 TraceCheckUtils]: 2: Hoare triple {56#true} #valid := #valid[0 := 0]; {56#true} is VALID [2020-07-08 21:48:22,341 INFO L280 TraceCheckUtils]: 3: Hoare triple {56#true} assume 0 < #StackHeapBarrier; {56#true} is VALID [2020-07-08 21:48:22,341 INFO L280 TraceCheckUtils]: 4: Hoare triple {56#true} assume true; {56#true} is VALID [2020-07-08 21:48:22,341 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {56#true} {56#true} #75#return; {56#true} is VALID [2020-07-08 21:48:22,342 INFO L263 TraceCheckUtils]: 6: Hoare triple {56#true} call #t~ret6 := main(); {56#true} is VALID [2020-07-08 21:48:22,342 INFO L280 TraceCheckUtils]: 7: Hoare triple {56#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {56#true} is VALID [2020-07-08 21:48:22,345 INFO L263 TraceCheckUtils]: 8: Hoare triple {56#true} call #t~ret4 := fabs_float(~x~0); {75#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:48:22,345 INFO L280 TraceCheckUtils]: 9: Hoare triple {75#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {56#true} is VALID [2020-07-08 21:48:22,346 INFO L280 TraceCheckUtils]: 10: Hoare triple {56#true} havoc ~ix~0; {56#true} is VALID [2020-07-08 21:48:22,347 INFO L280 TraceCheckUtils]: 11: Hoare triple {56#true} assume !true; {57#false} is VALID [2020-07-08 21:48:22,347 INFO L280 TraceCheckUtils]: 12: Hoare triple {57#false} assume !true; {57#false} is VALID [2020-07-08 21:48:22,348 INFO L280 TraceCheckUtils]: 13: Hoare triple {57#false} #res := ~x; {57#false} is VALID [2020-07-08 21:48:22,348 INFO L280 TraceCheckUtils]: 14: Hoare triple {57#false} assume true; {57#false} is VALID [2020-07-08 21:48:22,348 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {57#false} {56#true} #71#return; {57#false} is VALID [2020-07-08 21:48:22,349 INFO L280 TraceCheckUtils]: 16: Hoare triple {57#false} ~res~0 := #t~ret4; {57#false} is VALID [2020-07-08 21:48:22,350 INFO L280 TraceCheckUtils]: 17: Hoare triple {57#false} havoc #t~ret4; {57#false} is VALID [2020-07-08 21:48:22,350 INFO L263 TraceCheckUtils]: 18: Hoare triple {57#false} call #t~ret5 := isnan_float(~res~0); {56#true} is VALID [2020-07-08 21:48:22,350 INFO L280 TraceCheckUtils]: 19: Hoare triple {56#true} ~x := #in~x; {56#true} is VALID [2020-07-08 21:48:22,351 INFO L280 TraceCheckUtils]: 20: Hoare triple {56#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {56#true} is VALID [2020-07-08 21:48:22,351 INFO L280 TraceCheckUtils]: 21: Hoare triple {56#true} assume true; {56#true} is VALID [2020-07-08 21:48:22,352 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {56#true} {57#false} #73#return; {57#false} is VALID [2020-07-08 21:48:22,352 INFO L280 TraceCheckUtils]: 23: Hoare triple {57#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {57#false} is VALID [2020-07-08 21:48:22,353 INFO L280 TraceCheckUtils]: 24: Hoare triple {57#false} assume 0 == #t~ret5; {57#false} is VALID [2020-07-08 21:48:22,353 INFO L280 TraceCheckUtils]: 25: Hoare triple {57#false} havoc #t~ret5; {57#false} is VALID [2020-07-08 21:48:22,353 INFO L280 TraceCheckUtils]: 26: Hoare triple {57#false} assume !false; {57#false} is VALID [2020-07-08 21:48:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 21:48:22,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814437261] [2020-07-08 21:48:22,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 21:48:22,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 21:48:22,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983568628] [2020-07-08 21:48:22,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-08 21:48:22,373 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 21:48:22,378 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 21:48:22,452 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:22,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 21:48:22,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 21:48:22,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 21:48:22,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 21:48:22,465 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2020-07-08 21:48:22,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:22,928 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2020-07-08 21:48:22,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 21:48:22,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-07-08 21:48:22,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 21:48:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2020-07-08 21:48:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:22,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2020-07-08 21:48:22,953 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 102 transitions. [2020-07-08 21:48:23,102 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:23,129 INFO L225 Difference]: With dead ends: 94 [2020-07-08 21:48:23,129 INFO L226 Difference]: Without dead ends: 46 [2020-07-08 21:48:23,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 21:48:23,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-08 21:48:23,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-08 21:48:23,221 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 21:48:23,221 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-08 21:48:23,222 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-08 21:48:23,222 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-08 21:48:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:23,228 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-07-08 21:48:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2020-07-08 21:48:23,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:23,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:23,230 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-08 21:48:23,230 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-08 21:48:23,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:23,235 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-07-08 21:48:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2020-07-08 21:48:23,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:23,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:23,237 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 21:48:23,237 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 21:48:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-08 21:48:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 45 transitions. [2020-07-08 21:48:23,243 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 45 transitions. Word has length 27 [2020-07-08 21:48:23,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 21:48:23,243 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 45 transitions. [2020-07-08 21:48:23,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 21:48:23,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 46 states and 45 transitions. [2020-07-08 21:48:23,306 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 45 transitions. [2020-07-08 21:48:23,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-08 21:48:23,308 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:23,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 21:48:23,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 21:48:23,309 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:23,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2001690657, now seen corresponding path program 1 times [2020-07-08 21:48:23,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:23,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649132163] [2020-07-08 21:48:23,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:23,417 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 21:48:23,417 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 21:48:23,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 21:48:23,454 WARN L170 areAnnotationChecker]: isnan_floatENTRY has no Hoare annotation [2020-07-08 21:48:23,454 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 21:48:23,454 WARN L170 areAnnotationChecker]: fabs_floatENTRY has no Hoare annotation [2020-07-08 21:48:23,454 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 21:48:23,454 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 21:48:23,455 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 21:48:23,455 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-08 21:48:23,455 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:48:23,455 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-08 21:48:23,456 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:48:23,456 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:48:23,456 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-08 21:48:23,456 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: isnan_floatFINAL has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-08 21:48:23,457 WARN L170 areAnnotationChecker]: isnan_floatEXIT has no Hoare annotation [2020-07-08 21:48:23,458 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 21:48:23,458 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-08 21:48:23,458 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-08 21:48:23,458 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-08 21:48:23,458 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L39-1 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L21-2 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 21:48:23,459 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: fabs_floatFINAL has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L39-3 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L39-4 has no Hoare annotation [2020-07-08 21:48:23,460 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: fabs_floatEXIT has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-08 21:48:23,461 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 21:48:23,462 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L24-3 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 21:48:23,463 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-08 21:48:23,464 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. [2020-07-08 21:48:23,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 09:48:23 BoogieIcfgContainer [2020-07-08 21:48:23,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 21:48:23,475 INFO L168 Benchmark]: Toolchain (without parser) took 2531.22 ms. Allocated memory was 143.7 MB in the beginning and 233.3 MB in the end (delta: 89.7 MB). Free memory was 101.1 MB in the beginning and 132.2 MB in the end (delta: -31.1 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,477 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.64 ms. Allocated memory is still 143.7 MB. Free memory was 100.9 MB in the beginning and 90.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,480 INFO L168 Benchmark]: Boogie Preprocessor took 155.15 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 90.1 MB in the beginning and 179.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,481 INFO L168 Benchmark]: RCFGBuilder took 475.62 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 154.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,483 INFO L168 Benchmark]: TraceAbstraction took 1596.87 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 153.7 MB in the beginning and 133.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:23,496 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 143.7 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.64 ms. Allocated memory is still 143.7 MB. Free memory was 100.9 MB in the beginning and 90.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.15 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 90.1 MB in the beginning and 179.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.62 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 154.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1596.87 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 153.7 MB in the beginning and 133.6 MB in the end (delta: 20.0 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L36] CALL, EXPR fabs_float(x) VAL [\old(x)=14] [L15] __uint32_t ix; VAL [\old(x)=14, x=14] [L17] ieee_float_shape_type gf_u; VAL [\old(x)=14, gf_u={3:0}, x=14] [L18] gf_u.value = (x) VAL [\old(x)=14, gf_u={3:0}, x=14] [L19] EXPR gf_u.word VAL [\old(x)=14, gf_u={3:0}, gf_u.word=12, x=14] [L19] (ix) = gf_u.word VAL [\old(x)=14, gf_u={3:0}, gf_u.word=12, ix=12, x=14] [L22] ieee_float_shape_type sf_u; VAL [\old(x)=14, ix=12, sf_u={2:0}, x=14] [L23] sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=14, ix=12, sf_u={2:0}, x=14] [L24] EXPR sf_u.value VAL [\old(x)=14, ix=12, sf_u={2:0}, sf_u.value=10, x=14] [L24] (x) = sf_u.value VAL [\old(x)=14, ix=12, sf_u={2:0}, sf_u.value=10, x=10] [L26] return x; VAL [\old(x)=14, \result=10, ix=12, x=10] [L36] RET, EXPR fabs_float(x) VAL [fabs_float(x)=10, x=14] [L36] float res = fabs_float(x); VAL [fabs_float(x)=10, res=10, x=14] [L39] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L12] return x != x; VAL [\old(x)=10, \result=0, x=10] [L39] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=14] [L39] COND TRUE !isnan_float(res) VAL [isnan_float(res)=0, res=10, x=14] [L40] __VERIFIER_error() VAL [res=10, x=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 SDtfs, 13 SDslu, 30 SDs, 0 SdLazy, 53 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 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...