/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_1011a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:39:18,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:39:18,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:39:18,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:39:18,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:39:18,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:39:18,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:39:18,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:39:18,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:39:18,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:39:18,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:39:18,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:39:18,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:39:18,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:39:18,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:39:18,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:39:18,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:39:18,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:39:18,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:39:18,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:39:18,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:39:18,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:39:18,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:39:18,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:39:18,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:39:18,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:39:18,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:39:18,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:39:18,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:39:18,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 04:39:18,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 04:39:18,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 04:39:18,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 04:39:18,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 04:39:18,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 04:39:18,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 04:39:18,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 04:39:18,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 04:39:18,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:39:18,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:39:18,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:39:18,264 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 04:39:18,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:39:18,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:39:18,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:39:18,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:39:18,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:39:18,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:39:18,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:39:18,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:39:18,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:39:18,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:39:18,278 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:39:18,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:39:18,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:39:18,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:18,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:39:18,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:39:18,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:39:18,279 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 [2020-07-18 04:39:18,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:39:18,587 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:39:18,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:39:18,592 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:39:18,592 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:39:18,593 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011a.c [2020-07-18 04:39:18,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7225f3208/8d382a9df0414a5eaa4175f1c428a61e/FLAG7af694b95 [2020-07-18 04:39:19,129 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:39:19,129 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011a.c [2020-07-18 04:39:19,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7225f3208/8d382a9df0414a5eaa4175f1c428a61e/FLAG7af694b95 [2020-07-18 04:39:19,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7225f3208/8d382a9df0414a5eaa4175f1c428a61e [2020-07-18 04:39:19,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:39:19,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:39:19,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:19,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:39:19,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:39:19,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfc0b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19, skipping insertion in model container [2020-07-18 04:39:19,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:39:19,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:39:19,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:19,758 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:39:19,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:19,907 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:39:19,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19 WrapperNode [2020-07-18 04:39:19,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:19,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:39:19,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:39:19,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:39:19,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (1/1) ... [2020-07-18 04:39:19,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:39:19,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:39:19,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:39:19,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:39:19,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (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 [2020-07-18 04:39:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:39:20,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:39:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-07-18 04:39:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-18 04:39:20,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:39:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:39:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-18 04:39:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-07-18 04:39:20,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:39:20,064 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-18 04:39:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:39:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:39:20,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:39:20,564 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:39:20,565 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-18 04:39:20,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:20 BoogieIcfgContainer [2020-07-18 04:39:20,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:39:20,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:39:20,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:39:20,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:39:20,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:39:19" (1/3) ... [2020-07-18 04:39:20,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5462da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:20, skipping insertion in model container [2020-07-18 04:39:20,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:19" (2/3) ... [2020-07-18 04:39:20,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5462da38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:20, skipping insertion in model container [2020-07-18 04:39:20,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:20" (3/3) ... [2020-07-18 04:39:20,575 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a.c [2020-07-18 04:39:20,583 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:39:20,590 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:39:20,604 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:39:20,624 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:39:20,625 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:39:20,625 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:39:20,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:39:20,625 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:39:20,625 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:39:20,626 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:39:20,626 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:39:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2020-07-18 04:39:20,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-18 04:39:20,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:20,650 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] [2020-07-18 04:39:20,651 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:20,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:20,656 INFO L82 PathProgramCache]: Analyzing trace with hash 461788748, now seen corresponding path program 1 times [2020-07-18 04:39:20,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:20,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824087533] [2020-07-18 04:39:20,664 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:20,860 INFO L280 TraceCheckUtils]: 0: Hoare triple {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {72#true} is VALID [2020-07-18 04:39:20,861 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#true} #valid := #valid[0 := 0]; {72#true} is VALID [2020-07-18 04:39:20,861 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} assume 0 < #StackHeapBarrier; {72#true} is VALID [2020-07-18 04:39:20,862 INFO L280 TraceCheckUtils]: 3: Hoare triple {72#true} assume true; {72#true} is VALID [2020-07-18 04:39:20,862 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {72#true} {72#true} #106#return; {72#true} is VALID [2020-07-18 04:39:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:20,903 INFO L280 TraceCheckUtils]: 0: Hoare triple {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {72#true} is VALID [2020-07-18 04:39:20,904 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#true} havoc ~ix~0; {72#true} is VALID [2020-07-18 04:39:20,905 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} assume !true; {73#false} is VALID [2020-07-18 04:39:20,905 INFO L280 TraceCheckUtils]: 3: Hoare triple {73#false} assume !true; {73#false} is VALID [2020-07-18 04:39:20,906 INFO L280 TraceCheckUtils]: 4: Hoare triple {73#false} #res := ~x; {73#false} is VALID [2020-07-18 04:39:20,906 INFO L280 TraceCheckUtils]: 5: Hoare triple {73#false} assume true; {73#false} is VALID [2020-07-18 04:39:20,906 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {73#false} {72#true} #102#return; {73#false} is VALID [2020-07-18 04:39:20,908 INFO L263 TraceCheckUtils]: 0: Hoare triple {72#true} call ULTIMATE.init(); {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 04:39:20,909 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {72#true} is VALID [2020-07-18 04:39:20,909 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} #valid := #valid[0 := 0]; {72#true} is VALID [2020-07-18 04:39:20,910 INFO L280 TraceCheckUtils]: 3: Hoare triple {72#true} assume 0 < #StackHeapBarrier; {72#true} is VALID [2020-07-18 04:39:20,910 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#true} assume true; {72#true} is VALID [2020-07-18 04:39:20,911 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {72#true} {72#true} #106#return; {72#true} is VALID [2020-07-18 04:39:20,911 INFO L263 TraceCheckUtils]: 6: Hoare triple {72#true} call #t~ret9 := main(); {72#true} is VALID [2020-07-18 04:39:20,912 INFO L280 TraceCheckUtils]: 7: Hoare triple {72#true} ~x~0 := 0.0; {72#true} is VALID [2020-07-18 04:39:20,914 INFO L263 TraceCheckUtils]: 8: Hoare triple {72#true} call #t~ret6 := fabs_float(~x~0); {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:20,914 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {72#true} is VALID [2020-07-18 04:39:20,915 INFO L280 TraceCheckUtils]: 10: Hoare triple {72#true} havoc ~ix~0; {72#true} is VALID [2020-07-18 04:39:20,916 INFO L280 TraceCheckUtils]: 11: Hoare triple {72#true} assume !true; {73#false} is VALID [2020-07-18 04:39:20,916 INFO L280 TraceCheckUtils]: 12: Hoare triple {73#false} assume !true; {73#false} is VALID [2020-07-18 04:39:20,916 INFO L280 TraceCheckUtils]: 13: Hoare triple {73#false} #res := ~x; {73#false} is VALID [2020-07-18 04:39:20,917 INFO L280 TraceCheckUtils]: 14: Hoare triple {73#false} assume true; {73#false} is VALID [2020-07-18 04:39:20,917 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {73#false} {72#true} #102#return; {73#false} is VALID [2020-07-18 04:39:20,918 INFO L280 TraceCheckUtils]: 16: Hoare triple {73#false} ~res~0 := #t~ret6; {73#false} is VALID [2020-07-18 04:39:20,918 INFO L280 TraceCheckUtils]: 17: Hoare triple {73#false} havoc #t~ret6; {73#false} is VALID [2020-07-18 04:39:20,919 INFO L280 TraceCheckUtils]: 18: Hoare triple {73#false} #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {73#false} is VALID [2020-07-18 04:39:20,919 INFO L280 TraceCheckUtils]: 19: Hoare triple {73#false} assume !#t~short8; {73#false} is VALID [2020-07-18 04:39:20,919 INFO L280 TraceCheckUtils]: 20: Hoare triple {73#false} assume !#t~short8; {73#false} is VALID [2020-07-18 04:39:20,920 INFO L280 TraceCheckUtils]: 21: Hoare triple {73#false} havoc #t~ret7; {73#false} is VALID [2020-07-18 04:39:20,920 INFO L280 TraceCheckUtils]: 22: Hoare triple {73#false} havoc #t~short8; {73#false} is VALID [2020-07-18 04:39:20,921 INFO L280 TraceCheckUtils]: 23: Hoare triple {73#false} assume !false; {73#false} is VALID [2020-07-18 04:39:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 04:39:20,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824087533] [2020-07-18 04:39:20,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:39:20,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:39:20,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108490596] [2020-07-18 04:39:20,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 04:39:20,938 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:39:20,942 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:39:20,994 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:20,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:39:20,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:39:21,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:39:21,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:39:21,006 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2020-07-18 04:39:21,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:21,528 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2020-07-18 04:39:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:39:21,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 04:39:21,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:39:21,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-18 04:39:21,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-18 04:39:21,548 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 141 transitions. [2020-07-18 04:39:21,713 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:21,727 INFO L225 Difference]: With dead ends: 126 [2020-07-18 04:39:21,727 INFO L226 Difference]: Without dead ends: 61 [2020-07-18 04:39:21,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:39:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-18 04:39:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-07-18 04:39:21,813 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:39:21,814 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 61 states. [2020-07-18 04:39:21,814 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-18 04:39:21,815 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-18 04:39:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:21,821 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-07-18 04:39:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 04:39:21,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:21,822 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:21,822 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-18 04:39:21,822 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-18 04:39:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:21,828 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-07-18 04:39:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 04:39:21,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:21,829 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:21,830 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:39:21,830 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:39:21,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-18 04:39:21,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-07-18 04:39:21,835 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 24 [2020-07-18 04:39:21,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:39:21,835 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-07-18 04:39:21,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:39:21,836 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states and 61 transitions. [2020-07-18 04:39:21,906 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 04:39:21,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-18 04:39:21,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:21,908 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] [2020-07-18 04:39:21,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:39:21,909 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:21,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1177663505, now seen corresponding path program 1 times [2020-07-18 04:39:21,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:21,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851511405] [2020-07-18 04:39:21,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:22,019 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 04:39:22,019 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 04:39:22,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:22,058 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 04:39:22,058 WARN L170 areAnnotationChecker]: fabs_floatENTRY has no Hoare annotation [2020-07-18 04:39:22,058 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 04:39:22,058 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 04:39:22,059 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 04:39:22,060 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-18 04:39:22,061 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 04:39:22,062 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: fabs_floatFINAL has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 04:39:22,063 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: fabs_floatEXIT has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2020-07-18 04:39:22,064 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L49-3 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L49-7 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L49-9 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-18 04:39:22,065 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L49-8 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L49-10 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-18 04:39:22,066 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L31-1 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-18 04:39:22,067 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 04:39:22,068 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-18 04:39:22,069 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-18 04:39:22,069 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 04:39:22,069 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 04:39:22,069 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. [2020-07-18 04:39:22,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 04:39:22 BoogieIcfgContainer [2020-07-18 04:39:22,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 04:39:22,076 INFO L168 Benchmark]: Toolchain (without parser) took 2560.14 ms. Allocated memory was 136.8 MB in the beginning and 224.9 MB in the end (delta: 88.1 MB). Free memory was 98.3 MB in the beginning and 103.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,077 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 136.8 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.83 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 98.1 MB in the beginning and 178.3 MB in the end (delta: -80.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,078 INFO L168 Benchmark]: Boogie Preprocessor took 75.79 ms. Allocated memory is still 199.2 MB. Free memory was 178.3 MB in the beginning and 175.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,079 INFO L168 Benchmark]: RCFGBuilder took 583.92 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 145.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,080 INFO L168 Benchmark]: TraceAbstraction took 1502.71 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 144.8 MB in the beginning and 103.5 MB in the end (delta: 41.2 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:22,084 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 0.90 ms. Allocated memory is still 136.8 MB. Free memory was 116.6 MB in the beginning and 116.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 390.83 ms. Allocated memory was 136.8 MB in the beginning and 199.2 MB in the end (delta: 62.4 MB). Free memory was 98.1 MB in the beginning and 178.3 MB in the end (delta: -80.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.79 ms. Allocated memory is still 199.2 MB. Free memory was 178.3 MB in the beginning and 175.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 583.92 ms. Allocated memory is still 199.2 MB. Free memory was 175.6 MB in the beginning and 145.5 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1502.71 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 144.8 MB in the beginning and 103.5 MB in the end (delta: 41.2 MB). Peak memory consumption was 66.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = 0.0f; VAL [x=0] [L46] CALL, EXPR fabs_float(x) VAL [\old(x)=0] [L13] __uint32_t ix; VAL [\old(x)=0, x=0] [L15] ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={3:0}, x=0] [L16] gf_u.value = (x) VAL [\old(x)=0, gf_u={3:0}, x=0] [L17] EXPR gf_u.word VAL [\old(x)=0, gf_u={3:0}, gf_u.word=12, x=0] [L17] (ix) = gf_u.word VAL [\old(x)=0, gf_u={3:0}, gf_u.word=12, ix=12, x=0] [L20] ieee_float_shape_type sf_u; VAL [\old(x)=0, ix=12, sf_u={2:0}, x=0] [L21] sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=0, ix=12, sf_u={2:0}, x=0] [L22] EXPR sf_u.value VAL [\old(x)=0, ix=12, sf_u={2:0}, sf_u.value=10, x=0] [L22] (x) = sf_u.value VAL [\old(x)=0, ix=12, sf_u={2:0}, sf_u.value=10, x=10] [L24] return x; VAL [\old(x)=0, \result=10, ix=12, x=10] [L46] RET, EXPR fabs_float(x) VAL [fabs_float(x)=10, x=0] [L46] float res = fabs_float(x); VAL [fabs_float(x)=10, res=10, x=0] [L49] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=10, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) VAL [res=10, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L50] __VERIFIER_error() VAL [res=10, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 11 SDslu, 45 SDs, 0 SdLazy, 75 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred 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, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...