/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_1091.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 21:48:32,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 21:48:32,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 21:48:32,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 21:48:32,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 21:48:32,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 21:48:32,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 21:48:32,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 21:48:32,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 21:48:32,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 21:48:32,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 21:48:32,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 21:48:32,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 21:48:32,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 21:48:32,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 21:48:32,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 21:48:32,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 21:48:32,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 21:48:32,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 21:48:32,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 21:48:32,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 21:48:32,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 21:48:32,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 21:48:32,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 21:48:32,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 21:48:32,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 21:48:32,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 21:48:32,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 21:48:32,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 21:48:32,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 21:48:32,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 21:48:32,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 21:48:32,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 21:48:32,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 21:48:32,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 21:48:32,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 21:48:32,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 21:48:32,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 21:48:32,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 21:48:32,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 21:48:32,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 21:48:32,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 21:48:32,987 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 21:48:32,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 21:48:32,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 21:48:32,988 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 21:48:32,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 21:48:32,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 21:48:32,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 21:48:32,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 21:48:32,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 21:48:32,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 21:48:32,990 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 21:48:32,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 21:48:32,990 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 21:48:32,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 21:48:32,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 21:48:32,991 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 21:48:32,991 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 21:48:32,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 21:48:32,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:48:32,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 21:48:32,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 21:48:32,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 21:48:32,992 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 21:48:33,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 21:48:33,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 21:48:33,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 21:48:33,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 21:48:33,305 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 21:48:33,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1091.c [2020-07-08 21:48:33,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfd483f2b/ec3dddd1d49c492d8bc19babcbc655cb/FLAG46bb6c695 [2020-07-08 21:48:33,891 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 21:48:33,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1091.c [2020-07-08 21:48:33,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfd483f2b/ec3dddd1d49c492d8bc19babcbc655cb/FLAG46bb6c695 [2020-07-08 21:48:34,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfd483f2b/ec3dddd1d49c492d8bc19babcbc655cb [2020-07-08 21:48:34,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 21:48:34,283 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 21:48:34,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:34,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 21:48:34,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 21:48:34,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d74c3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34, skipping insertion in model container [2020-07-08 21:48:34,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 21:48:34,322 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 21:48:34,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:34,589 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 21:48:34,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:34,760 INFO L208 MainTranslator]: Completed translation [2020-07-08 21:48:34,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34 WrapperNode [2020-07-08 21:48:34,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:34,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 21:48:34,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 21:48:34,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 21:48:34,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... [2020-07-08 21:48:34,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 21:48:34,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 21:48:34,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 21:48:34,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 21:48:34,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:48:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 21:48:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 21:48:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2020-07-08 21:48:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-08 21:48:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 21:48:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 21:48:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2020-07-08 21:48:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 21:48:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 21:48:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 21:48:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 21:48:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 21:48:35,416 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 21:48:35,417 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-08 21:48:35,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:35 BoogieIcfgContainer [2020-07-08 21:48:35,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 21:48:35,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 21:48:35,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 21:48:35,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 21:48:35,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 09:48:34" (1/3) ... [2020-07-08 21:48:35,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fb23b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:35, skipping insertion in model container [2020-07-08 21:48:35,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:34" (2/3) ... [2020-07-08 21:48:35,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33fb23b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:35, skipping insertion in model container [2020-07-08 21:48:35,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:35" (3/3) ... [2020-07-08 21:48:35,432 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091.c [2020-07-08 21:48:35,444 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 21:48:35,453 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 21:48:35,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 21:48:35,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 21:48:35,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 21:48:35,491 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 21:48:35,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 21:48:35,494 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 21:48:35,494 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 21:48:35,494 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 21:48:35,495 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 21:48:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-07-08 21:48:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-08 21:48:35,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:35,531 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] [2020-07-08 21:48:35,532 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:35,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:35,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1889128291, now seen corresponding path program 1 times [2020-07-08 21:48:35,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:35,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100070163] [2020-07-08 21:48:35,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:35,814 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0; {79#true} is VALID [2020-07-08 21:48:35,814 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} #valid := #valid[0 := 0]; {79#true} is VALID [2020-07-08 21:48:35,815 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} assume 0 < #StackHeapBarrier; {79#true} is VALID [2020-07-08 21:48:35,816 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} ~huge_ceil~0 := 1.0E30; {79#true} is VALID [2020-07-08 21:48:35,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-08 21:48:35,819 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {79#true} {79#true} #132#return; {79#true} is VALID [2020-07-08 21:48:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:35,876 INFO L280 TraceCheckUtils]: 0: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {79#true} is VALID [2020-07-08 21:48:35,876 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} havoc ~i0~0; {79#true} is VALID [2020-07-08 21:48:35,877 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} havoc ~j0~0; {79#true} is VALID [2020-07-08 21:48:35,877 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} havoc ~i~0; {79#true} is VALID [2020-07-08 21:48:35,877 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} havoc ~ix~0; {79#true} is VALID [2020-07-08 21:48:35,879 INFO L280 TraceCheckUtils]: 5: Hoare triple {79#true} assume !true; {80#false} is VALID [2020-07-08 21:48:35,879 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {80#false} is VALID [2020-07-08 21:48:35,880 INFO L280 TraceCheckUtils]: 7: Hoare triple {80#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {80#false} is VALID [2020-07-08 21:48:35,880 INFO L280 TraceCheckUtils]: 8: Hoare triple {80#false} assume !(~j0~0 < 23); {80#false} is VALID [2020-07-08 21:48:35,880 INFO L280 TraceCheckUtils]: 9: Hoare triple {80#false} assume !(~ix~0 % 4294967296 < 2139095040); {80#false} is VALID [2020-07-08 21:48:35,881 INFO L280 TraceCheckUtils]: 10: Hoare triple {80#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {80#false} is VALID [2020-07-08 21:48:35,881 INFO L280 TraceCheckUtils]: 11: Hoare triple {80#false} assume true; {80#false} is VALID [2020-07-08 21:48:35,882 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {80#false} {79#true} #136#return; {80#false} is VALID [2020-07-08 21:48:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:35,891 INFO L280 TraceCheckUtils]: 0: Hoare triple {79#true} ~x := #in~x; {79#true} is VALID [2020-07-08 21:48:35,892 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {79#true} is VALID [2020-07-08 21:48:35,892 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-08 21:48:35,892 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {79#true} {80#false} #138#return; {80#false} is VALID [2020-07-08 21:48:35,894 INFO L263 TraceCheckUtils]: 0: Hoare triple {79#true} call ULTIMATE.init(); {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} is VALID [2020-07-08 21:48:35,895 INFO L280 TraceCheckUtils]: 1: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0; {79#true} is VALID [2020-07-08 21:48:35,895 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} #valid := #valid[0 := 0]; {79#true} is VALID [2020-07-08 21:48:35,896 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} assume 0 < #StackHeapBarrier; {79#true} is VALID [2020-07-08 21:48:35,896 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} ~huge_ceil~0 := 1.0E30; {79#true} is VALID [2020-07-08 21:48:35,896 INFO L280 TraceCheckUtils]: 5: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-08 21:48:35,897 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {79#true} {79#true} #132#return; {79#true} is VALID [2020-07-08 21:48:35,897 INFO L263 TraceCheckUtils]: 7: Hoare triple {79#true} call #t~ret6 := main(); {79#true} is VALID [2020-07-08 21:48:35,897 INFO L280 TraceCheckUtils]: 8: Hoare triple {79#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {79#true} is VALID [2020-07-08 21:48:35,899 INFO L263 TraceCheckUtils]: 9: Hoare triple {79#true} call #t~ret4 := ceil_float(~x~0); {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:48:35,899 INFO L280 TraceCheckUtils]: 10: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {79#true} is VALID [2020-07-08 21:48:35,900 INFO L280 TraceCheckUtils]: 11: Hoare triple {79#true} havoc ~i0~0; {79#true} is VALID [2020-07-08 21:48:35,900 INFO L280 TraceCheckUtils]: 12: Hoare triple {79#true} havoc ~j0~0; {79#true} is VALID [2020-07-08 21:48:35,900 INFO L280 TraceCheckUtils]: 13: Hoare triple {79#true} havoc ~i~0; {79#true} is VALID [2020-07-08 21:48:35,901 INFO L280 TraceCheckUtils]: 14: Hoare triple {79#true} havoc ~ix~0; {79#true} is VALID [2020-07-08 21:48:35,902 INFO L280 TraceCheckUtils]: 15: Hoare triple {79#true} assume !true; {80#false} is VALID [2020-07-08 21:48:35,902 INFO L280 TraceCheckUtils]: 16: Hoare triple {80#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {80#false} is VALID [2020-07-08 21:48:35,902 INFO L280 TraceCheckUtils]: 17: Hoare triple {80#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {80#false} is VALID [2020-07-08 21:48:35,903 INFO L280 TraceCheckUtils]: 18: Hoare triple {80#false} assume !(~j0~0 < 23); {80#false} is VALID [2020-07-08 21:48:35,903 INFO L280 TraceCheckUtils]: 19: Hoare triple {80#false} assume !(~ix~0 % 4294967296 < 2139095040); {80#false} is VALID [2020-07-08 21:48:35,903 INFO L280 TraceCheckUtils]: 20: Hoare triple {80#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {80#false} is VALID [2020-07-08 21:48:35,903 INFO L280 TraceCheckUtils]: 21: Hoare triple {80#false} assume true; {80#false} is VALID [2020-07-08 21:48:35,904 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {80#false} {79#true} #136#return; {80#false} is VALID [2020-07-08 21:48:35,904 INFO L280 TraceCheckUtils]: 23: Hoare triple {80#false} ~res~0 := #t~ret4; {80#false} is VALID [2020-07-08 21:48:35,904 INFO L280 TraceCheckUtils]: 24: Hoare triple {80#false} havoc #t~ret4; {80#false} is VALID [2020-07-08 21:48:35,905 INFO L263 TraceCheckUtils]: 25: Hoare triple {80#false} call #t~ret5 := isnan_float(~res~0); {79#true} is VALID [2020-07-08 21:48:35,905 INFO L280 TraceCheckUtils]: 26: Hoare triple {79#true} ~x := #in~x; {79#true} is VALID [2020-07-08 21:48:35,905 INFO L280 TraceCheckUtils]: 27: Hoare triple {79#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {79#true} is VALID [2020-07-08 21:48:35,906 INFO L280 TraceCheckUtils]: 28: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-08 21:48:35,906 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {79#true} {80#false} #138#return; {80#false} is VALID [2020-07-08 21:48:35,906 INFO L280 TraceCheckUtils]: 30: Hoare triple {80#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {80#false} is VALID [2020-07-08 21:48:35,907 INFO L280 TraceCheckUtils]: 31: Hoare triple {80#false} assume 0 == #t~ret5; {80#false} is VALID [2020-07-08 21:48:35,907 INFO L280 TraceCheckUtils]: 32: Hoare triple {80#false} havoc #t~ret5; {80#false} is VALID [2020-07-08 21:48:35,907 INFO L280 TraceCheckUtils]: 33: Hoare triple {80#false} assume !false; {80#false} is VALID [2020-07-08 21:48:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 21:48:35,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100070163] [2020-07-08 21:48:35,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 21:48:35,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 21:48:35,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827331715] [2020-07-08 21:48:35,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-08 21:48:35,925 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 21:48:35,929 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 21:48:36,005 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:36,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 21:48:36,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 21:48:36,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 21:48:36,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 21:48:36,020 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-07-08 21:48:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:36,612 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2020-07-08 21:48:36,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 21:48:36,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-08 21:48:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 21:48:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2020-07-08 21:48:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2020-07-08 21:48:36,640 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 162 transitions. [2020-07-08 21:48:36,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:36,881 INFO L225 Difference]: With dead ends: 136 [2020-07-08 21:48:36,881 INFO L226 Difference]: Without dead ends: 69 [2020-07-08 21:48:36,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 21:48:36,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-08 21:48:36,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-07-08 21:48:36,998 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 21:48:36,998 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 69 states. [2020-07-08 21:48:36,999 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2020-07-08 21:48:36,999 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2020-07-08 21:48:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:37,007 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-08 21:48:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-08 21:48:37,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:37,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:37,009 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2020-07-08 21:48:37,009 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2020-07-08 21:48:37,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:37,016 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-08 21:48:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-08 21:48:37,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:37,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:37,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 21:48:37,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 21:48:37,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-08 21:48:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2020-07-08 21:48:37,025 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 34 [2020-07-08 21:48:37,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 21:48:37,025 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2020-07-08 21:48:37,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 21:48:37,026 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states and 77 transitions. [2020-07-08 21:48:37,157 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:37,157 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-08 21:48:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-08 21:48:37,159 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:37,159 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] [2020-07-08 21:48:37,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 21:48:37,160 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:37,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:37,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1353425746, now seen corresponding path program 1 times [2020-07-08 21:48:37,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:37,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791404816] [2020-07-08 21:48:37,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:37,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 21:48:37,356 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1145) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1014) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:407) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:381) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:390) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:349) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 21:48:37,363 INFO L168 Benchmark]: Toolchain (without parser) took 3079.90 ms. Allocated memory was 144.7 MB in the beginning and 248.0 MB in the end (delta: 103.3 MB). Free memory was 103.1 MB in the beginning and 212.9 MB in the end (delta: -109.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 21:48:37,364 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-08 21:48:37,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.10 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 102.9 MB in the beginning and 179.7 MB in the end (delta: -76.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:37,367 INFO L168 Benchmark]: Boogie Preprocessor took 60.96 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 177.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:37,367 INFO L168 Benchmark]: RCFGBuilder took 599.62 ms. Allocated memory is still 201.3 MB. Free memory was 177.2 MB in the beginning and 143.7 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:37,368 INFO L168 Benchmark]: TraceAbstraction took 1935.91 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 143.1 MB in the beginning and 212.9 MB in the end (delta: -69.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-08 21:48:37,372 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 0.79 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 477.10 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 102.9 MB in the beginning and 179.7 MB in the end (delta: -76.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.96 ms. Allocated memory is still 201.3 MB. Free memory was 179.7 MB in the beginning and 177.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 599.62 ms. Allocated memory is still 201.3 MB. Free memory was 177.2 MB in the beginning and 143.7 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1935.91 ms. Allocated memory was 201.3 MB in the beginning and 248.0 MB in the end (delta: 46.7 MB). Free memory was 143.1 MB in the beginning and 212.9 MB in the end (delta: -69.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...