/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/double_req_bl_1011b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 21:47:36,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 21:47:36,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 21:47:36,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 21:47:36,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 21:47:36,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 21:47:36,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 21:47:36,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 21:47:36,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 21:47:36,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 21:47:36,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 21:47:36,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 21:47:36,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 21:47:36,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 21:47:36,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 21:47:36,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 21:47:36,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 21:47:36,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 21:47:36,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 21:47:36,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 21:47:36,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 21:47:36,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 21:47:36,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 21:47:36,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 21:47:36,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 21:47:36,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 21:47:36,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 21:47:36,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 21:47:36,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 21:47:36,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 21:47:36,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 21:47:36,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 21:47:36,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 21:47:36,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 21:47:36,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 21:47:36,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 21:47:36,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 21:47:36,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 21:47:36,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 21:47:36,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 21:47:36,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 21:47:36,330 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 21:47:36,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 21:47:36,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 21:47:36,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 21:47:36,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 21:47:36,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 21:47:36,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 21:47:36,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 21:47:36,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 21:47:36,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 21:47:36,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 21:47:36,349 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 21:47:36,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 21:47:36,350 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 21:47:36,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 21:47:36,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 21:47:36,351 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 21:47:36,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 21:47:36,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 21:47:36,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:47:36,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 21:47:36,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 21:47:36,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 21:47:36,353 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 21:47:36,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 21:47:36,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 21:47:36,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 21:47:36,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 21:47:36,694 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 21:47:36,695 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1011b.c [2020-07-08 21:47:36,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d9bb883/d4d6e4046ef7414fb28a3fce9ee30395/FLAGef2960723 [2020-07-08 21:47:37,225 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 21:47:37,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1011b.c [2020-07-08 21:47:37,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d9bb883/d4d6e4046ef7414fb28a3fce9ee30395/FLAGef2960723 [2020-07-08 21:47:37,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d9bb883/d4d6e4046ef7414fb28a3fce9ee30395 [2020-07-08 21:47:37,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 21:47:37,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 21:47:37,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 21:47:37,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 21:47:37,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 21:47:37,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:37,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc1e825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37, skipping insertion in model container [2020-07-08 21:47:37,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:37,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 21:47:37,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 21:47:37,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:47:37,907 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 21:47:37,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:47:37,982 INFO L208 MainTranslator]: Completed translation [2020-07-08 21:47:37,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37 WrapperNode [2020-07-08 21:47:37,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 21:47:37,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 21:47:37,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 21:47:37,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 21:47:38,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (1/1) ... [2020-07-08 21:47:38,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 21:47:38,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 21:47:38,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 21:47:38,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 21:47:38,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (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 21:47:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 21:47:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 21:47:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-08 21:47:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-07-08 21:47:38,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 21:47:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 21:47:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-08 21:47:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 21:47:38,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 21:47:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 21:47:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 21:47:38,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 21:47:38,640 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 21:47:38,641 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-08 21:47:38,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:47:38 BoogieIcfgContainer [2020-07-08 21:47:38,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 21:47:38,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 21:47:38,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 21:47:38,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 21:47:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 09:47:37" (1/3) ... [2020-07-08 21:47:38,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312c8604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:47:38, skipping insertion in model container [2020-07-08 21:47:38,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:47:37" (2/3) ... [2020-07-08 21:47:38,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312c8604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:47:38, skipping insertion in model container [2020-07-08 21:47:38,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:47:38" (3/3) ... [2020-07-08 21:47:38,654 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011b.c [2020-07-08 21:47:38,665 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 21:47:38,677 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 21:47:38,693 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 21:47:38,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 21:47:38,717 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 21:47:38,717 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 21:47:38,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 21:47:38,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 21:47:38,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 21:47:38,718 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 21:47:38,718 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 21:47:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-07-08 21:47:38,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-08 21:47:38,749 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:47:38,751 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] [2020-07-08 21:47:38,751 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:47:38,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:47:38,758 INFO L82 PathProgramCache]: Analyzing trace with hash 404072952, now seen corresponding path program 1 times [2020-07-08 21:47:38,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:47:38,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906872605] [2020-07-08 21:47:38,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:47:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:47:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:47:38,981 INFO L280 TraceCheckUtils]: 0: Hoare triple {88#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {74#true} is VALID [2020-07-08 21:47:38,982 INFO L280 TraceCheckUtils]: 1: Hoare triple {74#true} #valid := #valid[0 := 0]; {74#true} is VALID [2020-07-08 21:47:38,983 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#true} assume 0 < #StackHeapBarrier; {74#true} is VALID [2020-07-08 21:47:38,983 INFO L280 TraceCheckUtils]: 3: Hoare triple {74#true} assume true; {74#true} is VALID [2020-07-08 21:47:38,984 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {74#true} {74#true} #104#return; {74#true} is VALID [2020-07-08 21:47:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:47:39,024 INFO L280 TraceCheckUtils]: 0: Hoare triple {89#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {74#true} is VALID [2020-07-08 21:47:39,024 INFO L280 TraceCheckUtils]: 1: Hoare triple {74#true} havoc ~high~0; {74#true} is VALID [2020-07-08 21:47:39,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#true} assume !true; {75#false} is VALID [2020-07-08 21:47:39,026 INFO L280 TraceCheckUtils]: 3: Hoare triple {75#false} assume !true; {75#false} is VALID [2020-07-08 21:47:39,027 INFO L280 TraceCheckUtils]: 4: Hoare triple {75#false} #res := ~x; {75#false} is VALID [2020-07-08 21:47:39,027 INFO L280 TraceCheckUtils]: 5: Hoare triple {75#false} assume true; {75#false} is VALID [2020-07-08 21:47:39,028 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {75#false} {74#true} #108#return; {75#false} is VALID [2020-07-08 21:47:39,030 INFO L263 TraceCheckUtils]: 0: Hoare triple {74#true} call ULTIMATE.init(); {88#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 21:47:39,030 INFO L280 TraceCheckUtils]: 1: Hoare triple {88#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {74#true} is VALID [2020-07-08 21:47:39,031 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#true} #valid := #valid[0 := 0]; {74#true} is VALID [2020-07-08 21:47:39,031 INFO L280 TraceCheckUtils]: 3: Hoare triple {74#true} assume 0 < #StackHeapBarrier; {74#true} is VALID [2020-07-08 21:47:39,032 INFO L280 TraceCheckUtils]: 4: Hoare triple {74#true} assume true; {74#true} is VALID [2020-07-08 21:47:39,032 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {74#true} {74#true} #104#return; {74#true} is VALID [2020-07-08 21:47:39,033 INFO L263 TraceCheckUtils]: 6: Hoare triple {74#true} call #t~ret9 := main(); {74#true} is VALID [2020-07-08 21:47:39,033 INFO L280 TraceCheckUtils]: 7: Hoare triple {74#true} ~x~0 := ~someUnaryDOUBLEoperation(0.0); {74#true} is VALID [2020-07-08 21:47:39,036 INFO L263 TraceCheckUtils]: 8: Hoare triple {74#true} call #t~ret6 := fabs_double(~x~0); {89#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:47:39,036 INFO L280 TraceCheckUtils]: 9: Hoare triple {89#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {74#true} is VALID [2020-07-08 21:47:39,036 INFO L280 TraceCheckUtils]: 10: Hoare triple {74#true} havoc ~high~0; {74#true} is VALID [2020-07-08 21:47:39,039 INFO L280 TraceCheckUtils]: 11: Hoare triple {74#true} assume !true; {75#false} is VALID [2020-07-08 21:47:39,039 INFO L280 TraceCheckUtils]: 12: Hoare triple {75#false} assume !true; {75#false} is VALID [2020-07-08 21:47:39,039 INFO L280 TraceCheckUtils]: 13: Hoare triple {75#false} #res := ~x; {75#false} is VALID [2020-07-08 21:47:39,040 INFO L280 TraceCheckUtils]: 14: Hoare triple {75#false} assume true; {75#false} is VALID [2020-07-08 21:47:39,040 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {75#false} {74#true} #108#return; {75#false} is VALID [2020-07-08 21:47:39,041 INFO L280 TraceCheckUtils]: 16: Hoare triple {75#false} ~res~0 := #t~ret6; {75#false} is VALID [2020-07-08 21:47:39,041 INFO L280 TraceCheckUtils]: 17: Hoare triple {75#false} havoc #t~ret6; {75#false} is VALID [2020-07-08 21:47:39,041 INFO L280 TraceCheckUtils]: 18: Hoare triple {75#false} #t~short8 := ~someBinaryDOUBLEComparisonOperation(~res~0, 0.0); {75#false} is VALID [2020-07-08 21:47:39,042 INFO L280 TraceCheckUtils]: 19: Hoare triple {75#false} assume !#t~short8; {75#false} is VALID [2020-07-08 21:47:39,042 INFO L280 TraceCheckUtils]: 20: Hoare triple {75#false} assume !#t~short8; {75#false} is VALID [2020-07-08 21:47:39,043 INFO L280 TraceCheckUtils]: 21: Hoare triple {75#false} havoc #t~ret7; {75#false} is VALID [2020-07-08 21:47:39,043 INFO L280 TraceCheckUtils]: 22: Hoare triple {75#false} havoc #t~short8; {75#false} is VALID [2020-07-08 21:47:39,043 INFO L280 TraceCheckUtils]: 23: Hoare triple {75#false} assume !false; {75#false} is VALID [2020-07-08 21:47:39,048 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 21:47:39,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906872605] [2020-07-08 21:47:39,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 21:47:39,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 21:47:39,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546446049] [2020-07-08 21:47:39,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-08 21:47:39,062 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 21:47:39,066 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 21:47:39,113 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:47:39,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 21:47:39,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 21:47:39,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 21:47:39,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 21:47:39,126 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 4 states. [2020-07-08 21:47:39,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:47:39,675 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2020-07-08 21:47:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 21:47:39,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-08 21:47:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 21:47:39,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:47:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2020-07-08 21:47:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:47:39,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2020-07-08 21:47:39,697 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 145 transitions. [2020-07-08 21:47:39,883 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:47:39,898 INFO L225 Difference]: With dead ends: 130 [2020-07-08 21:47:39,899 INFO L226 Difference]: Without dead ends: 63 [2020-07-08 21:47:39,903 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 [2020-07-08 21:47:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-08 21:47:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-07-08 21:47:39,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 21:47:39,997 INFO L82 GeneralOperation]: Start isEquivalent. First operand 63 states. Second operand 63 states. [2020-07-08 21:47:39,997 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 63 states. [2020-07-08 21:47:39,998 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 63 states. [2020-07-08 21:47:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:47:40,004 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-07-08 21:47:40,004 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-07-08 21:47:40,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:47:40,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:47:40,006 INFO L74 IsIncluded]: Start isIncluded. First operand 63 states. Second operand 63 states. [2020-07-08 21:47:40,006 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 63 states. [2020-07-08 21:47:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:47:40,012 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2020-07-08 21:47:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-07-08 21:47:40,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:47:40,013 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:47:40,013 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 21:47:40,014 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 21:47:40,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-07-08 21:47:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2020-07-08 21:47:40,019 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 24 [2020-07-08 21:47:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 21:47:40,020 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2020-07-08 21:47:40,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 21:47:40,020 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 63 states and 63 transitions. [2020-07-08 21:47:40,102 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:47:40,103 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2020-07-08 21:47:40,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-08 21:47:40,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:47:40,105 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] [2020-07-08 21:47:40,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 21:47:40,105 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:47:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:47:40,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1202412452, now seen corresponding path program 1 times [2020-07-08 21:47:40,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:47:40,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993737633] [2020-07-08 21:47:40,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:47:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:47:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:47:40,298 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 21:47:40,299 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 21:47:40,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 21:47:40,336 WARN L170 areAnnotationChecker]: fabs_doubleENTRY has no Hoare annotation [2020-07-08 21:47:40,336 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 21:47:40,336 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 21:47:40,337 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 21:47:40,337 WARN L170 areAnnotationChecker]: __signbit_doubleENTRY has no Hoare annotation [2020-07-08 21:47:40,337 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 21:47:40,337 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-08 21:47:40,337 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-08 21:47:40,338 WARN L170 areAnnotationChecker]: L27-2 has no Hoare annotation [2020-07-08 21:47:40,339 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 21:47:40,339 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 21:47:40,339 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-08 21:47:40,339 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-08 21:47:40,339 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-08 21:47:40,340 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: L32-2 has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 21:47:40,341 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: __signbit_doubleFINAL has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: fabs_doubleFINAL has no Hoare annotation [2020-07-08 21:47:40,342 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: __signbit_doubleEXIT has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: L51-1 has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: fabs_doubleEXIT has no Hoare annotation [2020-07-08 21:47:40,343 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-08 21:47:40,344 WARN L170 areAnnotationChecker]: L51-3 has no Hoare annotation [2020-07-08 21:47:40,344 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2020-07-08 21:47:40,344 WARN L170 areAnnotationChecker]: L51-2 has no Hoare annotation [2020-07-08 21:47:40,344 WARN L170 areAnnotationChecker]: L51-6 has no Hoare annotation [2020-07-08 21:47:40,344 WARN L170 areAnnotationChecker]: L51-6 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L51-4 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L51-7 has no Hoare annotation [2020-07-08 21:47:40,345 WARN L170 areAnnotationChecker]: L51-9 has no Hoare annotation [2020-07-08 21:47:40,346 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-08 21:47:40,346 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-08 21:47:40,346 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-08 21:47:40,346 WARN L170 areAnnotationChecker]: L51-8 has no Hoare annotation [2020-07-08 21:47:40,346 WARN L170 areAnnotationChecker]: L51-10 has no Hoare annotation [2020-07-08 21:47:40,347 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-08 21:47:40,347 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-08 21:47:40,347 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-08 21:47:40,347 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-08 21:47:40,347 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-08 21:47:40,348 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: L27-1 has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-08 21:47:40,349 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 21:47:40,350 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-08 21:47:40,350 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-08 21:47:40,350 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-08 21:47:40,350 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-08 21:47:40,350 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 21:47:40,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 09:47:40 BoogieIcfgContainer [2020-07-08 21:47:40,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 21:47:40,358 INFO L168 Benchmark]: Toolchain (without parser) took 2756.36 ms. Allocated memory was 144.7 MB in the beginning and 233.3 MB in the end (delta: 88.6 MB). Free memory was 101.8 MB in the beginning and 101.4 MB in the end (delta: 382.4 kB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,359 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 144.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.84 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 90.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,361 INFO L168 Benchmark]: Boogie Preprocessor took 168.26 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.5 MB in the beginning and 179.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,362 INFO L168 Benchmark]: RCFGBuilder took 493.51 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 148.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,363 INFO L168 Benchmark]: TraceAbstraction took 1707.94 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 147.5 MB in the beginning and 101.4 MB in the end (delta: 46.1 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2020-07-08 21:47:40,367 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 0.91 ms. Allocated memory is still 144.7 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 380.84 ms. Allocated memory is still 144.7 MB. Free memory was 101.5 MB in the beginning and 90.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.26 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 90.5 MB in the beginning and 179.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 493.51 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 148.1 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1707.94 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 147.5 MB in the beginning and 101.4 MB in the end (delta: 46.1 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 52]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L47] double x = -0.0; [L48] CALL, EXPR fabs_double(x) VAL [\old(x)=15] [L26] __uint32_t high; VAL [\old(x)=15, x=15] [L28] ieee_double_shape_type gh_u; VAL [\old(x)=15, gh_u={3:0}, x=15] [L29] gh_u.value = (x) VAL [\old(x)=15, gh_u={3:0}, x=15] [L30] EXPR gh_u.parts.msw VAL [\old(x)=15, gh_u={3:0}, gh_u.parts.msw=12, x=15] [L30] (high) = gh_u.parts.msw VAL [\old(x)=15, gh_u={3:0}, gh_u.parts.msw=12, high=12, x=15] [L33] ieee_double_shape_type sh_u; VAL [\old(x)=15, high=12, sh_u={2:0}, x=15] [L34] sh_u.value = (x) VAL [\old(x)=15, high=12, sh_u={2:0}, x=15] [L35] sh_u.parts.msw = (high & 0x7fffffff) VAL [\old(x)=15, high=12, sh_u={2:0}, x=15] [L36] EXPR sh_u.value VAL [\old(x)=15, high=12, sh_u={2:0}, sh_u.value=15, x=15] [L36] (x) = sh_u.value VAL [\old(x)=15, high=12, sh_u={2:0}, sh_u.value=15, x=15] [L38] return x; VAL [\old(x)=15, \result=15, high=12, x=15] [L48] RET, EXPR fabs_double(x) VAL [fabs_double(x)=15, x=15] [L48] double res = fabs_double(x); VAL [fabs_double(x)=15, res=15, x=15] [L51] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=15, res == 0.0 && __signbit_double(res) == 0=0, x=15] [L51] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [res=15, res == 0.0 && __signbit_double(res) == 0=0, x=15] [L52] __VERIFIER_error() VAL [res=15, x=15] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 11 SDslu, 45 SDs, 0 SdLazy, 79 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=71occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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...