/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:13:45,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:13:45,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:13:45,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:13:45,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:13:45,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:13:45,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:13:45,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:13:45,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:13:45,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:13:45,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:13:45,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:13:45,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:13:45,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:13:45,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:13:45,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:13:45,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:13:45,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:13:45,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:13:45,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:13:45,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:13:45,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:13:45,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:13:45,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:13:45,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:13:45,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:13:45,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:13:45,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:13:45,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:13:45,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:13:45,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:13:45,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:13:45,136 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:13:45,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:13:45,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:13:45,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:13:45,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:13:45,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:13:45,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:13:45,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:13:45,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:13:45,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:13:45,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:13:45,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:13:45,138 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:13:45,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:13:45,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:13:45,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:45,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:13:45,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:13:45,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:13:45,139 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:13:45,419 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:13:45,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:13:45,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:13:45,446 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:13:45,446 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:13:45,447 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-07-18 00:13:45,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4dda41e/07d0608d07e94d7d83a8eba52948636d/FLAG9038c80dd [2020-07-18 00:13:45,968 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:13:45,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1252a.c [2020-07-18 00:13:45,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4dda41e/07d0608d07e94d7d83a8eba52948636d/FLAG9038c80dd [2020-07-18 00:13:46,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e4dda41e/07d0608d07e94d7d83a8eba52948636d [2020-07-18 00:13:46,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:46,342 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:46,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:46,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:46,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:46,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17203c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46, skipping insertion in model container [2020-07-18 00:13:46,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:46,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:46,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:46,566 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:46,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:46,621 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46 WrapperNode [2020-07-18 00:13:46,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:46,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:46,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:46,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:46,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... [2020-07-18 00:13:46,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:46,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:46,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:46,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:46,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:46,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:46,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:46,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-07-18 00:13:46,855 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2020-07-18 00:13:46,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-18 00:13:46,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:46,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:46,856 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-07-18 00:13:46,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:46,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:46,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:46,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:46,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:46,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:47,426 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:47,427 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-18 00:13:47,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:47 BoogieIcfgContainer [2020-07-18 00:13:47,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:47,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:47,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:47,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:46" (1/3) ... [2020-07-18 00:13:47,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca398eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:47, skipping insertion in model container [2020-07-18 00:13:47,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:46" (2/3) ... [2020-07-18 00:13:47,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca398eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:47, skipping insertion in model container [2020-07-18 00:13:47,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:47" (3/3) ... [2020-07-18 00:13:47,442 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a.c [2020-07-18 00:13:47,454 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:47,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:47,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:47,505 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:47,505 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:47,505 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:47,505 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:47,506 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:47,506 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:47,506 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:47,507 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-07-18 00:13:47,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-18 00:13:47,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:47,551 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] [2020-07-18 00:13:47,552 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:47,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:47,560 INFO L82 PathProgramCache]: Analyzing trace with hash 2131665852, now seen corresponding path program 1 times [2020-07-18 00:13:47,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:47,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525182082] [2020-07-18 00:13:47,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:47,794 INFO L280 TraceCheckUtils]: 0: Hoare triple {115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {92#true} is VALID [2020-07-18 00:13:47,795 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-18 00:13:47,795 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-18 00:13:47,796 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-18 00:13:47,797 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {92#true} {92#true} #143#return; {92#true} is VALID [2020-07-18 00:13:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:47,848 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {92#true} is VALID [2020-07-18 00:13:47,849 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-18 00:13:47,850 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-18 00:13:47,851 INFO L280 TraceCheckUtils]: 3: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-18 00:13:47,851 INFO L280 TraceCheckUtils]: 4: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-18 00:13:47,851 INFO L280 TraceCheckUtils]: 5: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-18 00:13:47,852 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-18 00:13:47,852 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {92#true} is VALID [2020-07-18 00:13:47,853 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} ~y := #in~y; {92#true} is VALID [2020-07-18 00:13:47,855 INFO L263 TraceCheckUtils]: 2: Hoare triple {92#true} call #t~ret2 := __fpclassify_float(~x); {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:47,855 INFO L280 TraceCheckUtils]: 3: Hoare triple {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {92#true} is VALID [2020-07-18 00:13:47,856 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-18 00:13:47,857 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-18 00:13:47,857 INFO L280 TraceCheckUtils]: 6: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-18 00:13:47,857 INFO L280 TraceCheckUtils]: 7: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-18 00:13:47,858 INFO L280 TraceCheckUtils]: 8: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-18 00:13:47,858 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-18 00:13:47,858 INFO L280 TraceCheckUtils]: 10: Hoare triple {93#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {93#false} is VALID [2020-07-18 00:13:47,859 INFO L280 TraceCheckUtils]: 11: Hoare triple {93#false} assume 0 == #t~ret2; {93#false} is VALID [2020-07-18 00:13:47,859 INFO L280 TraceCheckUtils]: 12: Hoare triple {93#false} havoc #t~ret2; {93#false} is VALID [2020-07-18 00:13:47,859 INFO L280 TraceCheckUtils]: 13: Hoare triple {93#false} #res := ~y; {93#false} is VALID [2020-07-18 00:13:47,860 INFO L280 TraceCheckUtils]: 14: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-18 00:13:47,860 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {93#false} {92#true} #135#return; {93#false} is VALID [2020-07-18 00:13:47,863 INFO L263 TraceCheckUtils]: 0: Hoare triple {92#true} call ULTIMATE.init(); {115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:13:47,864 INFO L280 TraceCheckUtils]: 1: Hoare triple {115#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {92#true} is VALID [2020-07-18 00:13:47,864 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-18 00:13:47,865 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-18 00:13:47,865 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-18 00:13:47,865 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {92#true} {92#true} #143#return; {92#true} is VALID [2020-07-18 00:13:47,866 INFO L263 TraceCheckUtils]: 6: Hoare triple {92#true} call #t~ret10 := main(); {92#true} is VALID [2020-07-18 00:13:47,866 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {92#true} is VALID [2020-07-18 00:13:47,867 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#true} ~y~0 := 0.0; {92#true} is VALID [2020-07-18 00:13:47,869 INFO L263 TraceCheckUtils]: 9: Hoare triple {92#true} call #t~ret7 := fmax_float(~x~0, ~y~0); {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:47,870 INFO L280 TraceCheckUtils]: 10: Hoare triple {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {92#true} is VALID [2020-07-18 00:13:47,870 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#true} ~y := #in~y; {92#true} is VALID [2020-07-18 00:13:47,874 INFO L263 TraceCheckUtils]: 12: Hoare triple {92#true} call #t~ret2 := __fpclassify_float(~x); {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:47,874 INFO L280 TraceCheckUtils]: 13: Hoare triple {116#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {92#true} is VALID [2020-07-18 00:13:47,874 INFO L280 TraceCheckUtils]: 14: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-18 00:13:47,875 INFO L280 TraceCheckUtils]: 15: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-18 00:13:47,876 INFO L280 TraceCheckUtils]: 16: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-18 00:13:47,876 INFO L280 TraceCheckUtils]: 17: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-18 00:13:47,876 INFO L280 TraceCheckUtils]: 18: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-18 00:13:47,877 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-18 00:13:47,877 INFO L280 TraceCheckUtils]: 20: Hoare triple {93#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {93#false} is VALID [2020-07-18 00:13:47,878 INFO L280 TraceCheckUtils]: 21: Hoare triple {93#false} assume 0 == #t~ret2; {93#false} is VALID [2020-07-18 00:13:47,878 INFO L280 TraceCheckUtils]: 22: Hoare triple {93#false} havoc #t~ret2; {93#false} is VALID [2020-07-18 00:13:47,878 INFO L280 TraceCheckUtils]: 23: Hoare triple {93#false} #res := ~y; {93#false} is VALID [2020-07-18 00:13:47,879 INFO L280 TraceCheckUtils]: 24: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-18 00:13:47,879 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {93#false} {92#true} #135#return; {93#false} is VALID [2020-07-18 00:13:47,879 INFO L280 TraceCheckUtils]: 26: Hoare triple {93#false} ~res~0 := #t~ret7; {93#false} is VALID [2020-07-18 00:13:47,880 INFO L280 TraceCheckUtils]: 27: Hoare triple {93#false} havoc #t~ret7; {93#false} is VALID [2020-07-18 00:13:47,880 INFO L280 TraceCheckUtils]: 28: Hoare triple {93#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {93#false} is VALID [2020-07-18 00:13:47,881 INFO L280 TraceCheckUtils]: 29: Hoare triple {93#false} assume !#t~short9; {93#false} is VALID [2020-07-18 00:13:47,881 INFO L280 TraceCheckUtils]: 30: Hoare triple {93#false} assume !#t~short9; {93#false} is VALID [2020-07-18 00:13:47,881 INFO L280 TraceCheckUtils]: 31: Hoare triple {93#false} havoc #t~ret8; {93#false} is VALID [2020-07-18 00:13:47,882 INFO L280 TraceCheckUtils]: 32: Hoare triple {93#false} havoc #t~short9; {93#false} is VALID [2020-07-18 00:13:47,882 INFO L280 TraceCheckUtils]: 33: Hoare triple {93#false} assume !false; {93#false} is VALID [2020-07-18 00:13:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:47,891 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:47,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525182082] [2020-07-18 00:13:47,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:47,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:13:47,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035595488] [2020-07-18 00:13:47,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-18 00:13:47,907 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:47,910 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:13:47,983 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:47,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:13:47,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:47,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:13:47,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:13:47,998 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-07-18 00:13:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:48,657 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-07-18 00:13:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:13:48,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-18 00:13:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2020-07-18 00:13:48,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2020-07-18 00:13:48,684 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 192 transitions. [2020-07-18 00:13:48,956 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 192 edges. 192 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:48,973 INFO L225 Difference]: With dead ends: 164 [2020-07-18 00:13:48,973 INFO L226 Difference]: Without dead ends: 81 [2020-07-18 00:13:48,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:13:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-18 00:13:49,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-18 00:13:49,091 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:49,091 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-18 00:13:49,092 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 00:13:49,092 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 00:13:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:49,112 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-18 00:13:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 00:13:49,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:49,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:49,113 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 00:13:49,114 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 00:13:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:49,121 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-18 00:13:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 00:13:49,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:49,123 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:49,123 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:49,123 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-18 00:13:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-07-18 00:13:49,133 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-07-18 00:13:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:49,134 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-07-18 00:13:49,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:13:49,134 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 89 transitions. [2020-07-18 00:13:49,242 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:49,243 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 00:13:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-18 00:13:49,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:49,245 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] [2020-07-18 00:13:49,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:49,246 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:49,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:49,246 INFO L82 PathProgramCache]: Analyzing trace with hash -630897281, now seen corresponding path program 1 times [2020-07-18 00:13:49,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:49,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85720602] [2020-07-18 00:13:49,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:49,353 INFO L280 TraceCheckUtils]: 0: Hoare triple {813#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {781#true} is VALID [2020-07-18 00:13:49,354 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} #valid := #valid[0 := 0]; {781#true} is VALID [2020-07-18 00:13:49,354 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} assume 0 < #StackHeapBarrier; {781#true} is VALID [2020-07-18 00:13:49,354 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} assume true; {781#true} is VALID [2020-07-18 00:13:49,355 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {781#true} {781#true} #143#return; {781#true} is VALID [2020-07-18 00:13:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:49,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {781#true} is VALID [2020-07-18 00:13:49,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-18 00:13:49,456 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {781#true} is VALID [2020-07-18 00:13:49,456 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {781#true} is VALID [2020-07-18 00:13:49,457 INFO L280 TraceCheckUtils]: 4: Hoare triple {781#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {781#true} is VALID [2020-07-18 00:13:49,457 INFO L280 TraceCheckUtils]: 5: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,457 INFO L280 TraceCheckUtils]: 6: Hoare triple {781#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {781#true} is VALID [2020-07-18 00:13:49,458 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-18 00:13:49,458 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,458 INFO L280 TraceCheckUtils]: 9: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {781#true} is VALID [2020-07-18 00:13:49,459 INFO L280 TraceCheckUtils]: 10: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-18 00:13:49,459 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-18 00:13:49,459 INFO L280 TraceCheckUtils]: 12: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-18 00:13:49,460 INFO L280 TraceCheckUtils]: 13: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,462 INFO L280 TraceCheckUtils]: 14: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,464 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:49,464 INFO L280 TraceCheckUtils]: 0: Hoare triple {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {781#true} is VALID [2020-07-18 00:13:49,465 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} ~y := #in~y; {781#true} is VALID [2020-07-18 00:13:49,466 INFO L263 TraceCheckUtils]: 2: Hoare triple {781#true} call #t~ret2 := __fpclassify_float(~x); {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:49,467 INFO L280 TraceCheckUtils]: 3: Hoare triple {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {781#true} is VALID [2020-07-18 00:13:49,467 INFO L280 TraceCheckUtils]: 4: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-18 00:13:49,467 INFO L280 TraceCheckUtils]: 5: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {781#true} is VALID [2020-07-18 00:13:49,468 INFO L280 TraceCheckUtils]: 6: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {781#true} is VALID [2020-07-18 00:13:49,468 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {781#true} is VALID [2020-07-18 00:13:49,468 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,469 INFO L280 TraceCheckUtils]: 9: Hoare triple {781#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {781#true} is VALID [2020-07-18 00:13:49,469 INFO L280 TraceCheckUtils]: 10: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-18 00:13:49,469 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,470 INFO L280 TraceCheckUtils]: 12: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {781#true} is VALID [2020-07-18 00:13:49,470 INFO L280 TraceCheckUtils]: 13: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-18 00:13:49,470 INFO L280 TraceCheckUtils]: 14: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-18 00:13:49,471 INFO L280 TraceCheckUtils]: 15: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-18 00:13:49,472 INFO L280 TraceCheckUtils]: 16: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,475 INFO L280 TraceCheckUtils]: 17: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,477 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:49,477 INFO L280 TraceCheckUtils]: 19: Hoare triple {831#(<= 2 |fmax_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {831#(<= 2 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:49,478 INFO L280 TraceCheckUtils]: 20: Hoare triple {831#(<= 2 |fmax_float_#t~ret2|)} assume 0 == #t~ret2; {782#false} is VALID [2020-07-18 00:13:49,479 INFO L280 TraceCheckUtils]: 21: Hoare triple {782#false} havoc #t~ret2; {782#false} is VALID [2020-07-18 00:13:49,479 INFO L280 TraceCheckUtils]: 22: Hoare triple {782#false} #res := ~y; {782#false} is VALID [2020-07-18 00:13:49,479 INFO L280 TraceCheckUtils]: 23: Hoare triple {782#false} assume true; {782#false} is VALID [2020-07-18 00:13:49,480 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {782#false} {781#true} #135#return; {782#false} is VALID [2020-07-18 00:13:49,482 INFO L263 TraceCheckUtils]: 0: Hoare triple {781#true} call ULTIMATE.init(); {813#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:13:49,482 INFO L280 TraceCheckUtils]: 1: Hoare triple {813#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {781#true} is VALID [2020-07-18 00:13:49,482 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} #valid := #valid[0 := 0]; {781#true} is VALID [2020-07-18 00:13:49,483 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} assume 0 < #StackHeapBarrier; {781#true} is VALID [2020-07-18 00:13:49,483 INFO L280 TraceCheckUtils]: 4: Hoare triple {781#true} assume true; {781#true} is VALID [2020-07-18 00:13:49,483 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {781#true} {781#true} #143#return; {781#true} is VALID [2020-07-18 00:13:49,484 INFO L263 TraceCheckUtils]: 6: Hoare triple {781#true} call #t~ret10 := main(); {781#true} is VALID [2020-07-18 00:13:49,484 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {781#true} is VALID [2020-07-18 00:13:49,484 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} ~y~0 := 0.0; {781#true} is VALID [2020-07-18 00:13:49,486 INFO L263 TraceCheckUtils]: 9: Hoare triple {781#true} call #t~ret7 := fmax_float(~x~0, ~y~0); {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:49,486 INFO L280 TraceCheckUtils]: 10: Hoare triple {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {781#true} is VALID [2020-07-18 00:13:49,486 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} ~y := #in~y; {781#true} is VALID [2020-07-18 00:13:49,487 INFO L263 TraceCheckUtils]: 12: Hoare triple {781#true} call #t~ret2 := __fpclassify_float(~x); {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:49,488 INFO L280 TraceCheckUtils]: 13: Hoare triple {814#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {781#true} is VALID [2020-07-18 00:13:49,488 INFO L280 TraceCheckUtils]: 14: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-18 00:13:49,488 INFO L280 TraceCheckUtils]: 15: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {781#true} is VALID [2020-07-18 00:13:49,489 INFO L280 TraceCheckUtils]: 16: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {781#true} is VALID [2020-07-18 00:13:49,489 INFO L280 TraceCheckUtils]: 17: Hoare triple {781#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {781#true} is VALID [2020-07-18 00:13:49,489 INFO L280 TraceCheckUtils]: 18: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,490 INFO L280 TraceCheckUtils]: 19: Hoare triple {781#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {781#true} is VALID [2020-07-18 00:13:49,490 INFO L280 TraceCheckUtils]: 20: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-18 00:13:49,490 INFO L280 TraceCheckUtils]: 21: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-18 00:13:49,491 INFO L280 TraceCheckUtils]: 22: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {781#true} is VALID [2020-07-18 00:13:49,491 INFO L280 TraceCheckUtils]: 23: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-18 00:13:49,491 INFO L280 TraceCheckUtils]: 24: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-18 00:13:49,491 INFO L280 TraceCheckUtils]: 25: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-18 00:13:49,492 INFO L280 TraceCheckUtils]: 26: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,493 INFO L280 TraceCheckUtils]: 27: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:49,494 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:49,495 INFO L280 TraceCheckUtils]: 29: Hoare triple {831#(<= 2 |fmax_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {831#(<= 2 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:49,496 INFO L280 TraceCheckUtils]: 30: Hoare triple {831#(<= 2 |fmax_float_#t~ret2|)} assume 0 == #t~ret2; {782#false} is VALID [2020-07-18 00:13:49,496 INFO L280 TraceCheckUtils]: 31: Hoare triple {782#false} havoc #t~ret2; {782#false} is VALID [2020-07-18 00:13:49,496 INFO L280 TraceCheckUtils]: 32: Hoare triple {782#false} #res := ~y; {782#false} is VALID [2020-07-18 00:13:49,497 INFO L280 TraceCheckUtils]: 33: Hoare triple {782#false} assume true; {782#false} is VALID [2020-07-18 00:13:49,497 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {782#false} {781#true} #135#return; {782#false} is VALID [2020-07-18 00:13:49,497 INFO L280 TraceCheckUtils]: 35: Hoare triple {782#false} ~res~0 := #t~ret7; {782#false} is VALID [2020-07-18 00:13:49,498 INFO L280 TraceCheckUtils]: 36: Hoare triple {782#false} havoc #t~ret7; {782#false} is VALID [2020-07-18 00:13:49,498 INFO L280 TraceCheckUtils]: 37: Hoare triple {782#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {782#false} is VALID [2020-07-18 00:13:49,498 INFO L280 TraceCheckUtils]: 38: Hoare triple {782#false} assume !#t~short9; {782#false} is VALID [2020-07-18 00:13:49,498 INFO L280 TraceCheckUtils]: 39: Hoare triple {782#false} assume !#t~short9; {782#false} is VALID [2020-07-18 00:13:49,499 INFO L280 TraceCheckUtils]: 40: Hoare triple {782#false} havoc #t~ret8; {782#false} is VALID [2020-07-18 00:13:49,499 INFO L280 TraceCheckUtils]: 41: Hoare triple {782#false} havoc #t~short9; {782#false} is VALID [2020-07-18 00:13:49,499 INFO L280 TraceCheckUtils]: 42: Hoare triple {782#false} assume !false; {782#false} is VALID [2020-07-18 00:13:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:49,505 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:49,506 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85720602] [2020-07-18 00:13:49,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:49,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 00:13:49,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875783171] [2020-07-18 00:13:49,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-18 00:13:49,508 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:49,508 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 00:13:49,554 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:49,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 00:13:49,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:49,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 00:13:49,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:13:49,555 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-07-18 00:13:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:50,204 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-07-18 00:13:50,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:13:50,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-18 00:13:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:13:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:13:50,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:13:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:13:50,215 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-18 00:13:50,342 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:50,348 INFO L225 Difference]: With dead ends: 117 [2020-07-18 00:13:50,348 INFO L226 Difference]: Without dead ends: 86 [2020-07-18 00:13:50,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:13:50,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-18 00:13:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-07-18 00:13:50,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:50,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 85 states. [2020-07-18 00:13:50,435 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 85 states. [2020-07-18 00:13:50,435 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 85 states. [2020-07-18 00:13:50,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:50,441 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-07-18 00:13:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-07-18 00:13:50,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:50,443 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:50,443 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 86 states. [2020-07-18 00:13:50,443 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 86 states. [2020-07-18 00:13:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:50,449 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-07-18 00:13:50,449 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-07-18 00:13:50,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:50,451 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:50,451 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:50,451 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-18 00:13:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-07-18 00:13:50,456 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-07-18 00:13:50,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:50,457 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-07-18 00:13:50,457 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 00:13:50,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states and 94 transitions. [2020-07-18 00:13:50,559 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-07-18 00:13:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-18 00:13:50,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:50,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:50,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:13:50,562 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:50,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1681903777, now seen corresponding path program 1 times [2020-07-18 00:13:50,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:50,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667454552] [2020-07-18 00:13:50,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:50,679 INFO L280 TraceCheckUtils]: 0: Hoare triple {1449#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1414#true} is VALID [2020-07-18 00:13:50,679 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} #valid := #valid[0 := 0]; {1414#true} is VALID [2020-07-18 00:13:50,680 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} assume 0 < #StackHeapBarrier; {1414#true} is VALID [2020-07-18 00:13:50,680 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} assume true; {1414#true} is VALID [2020-07-18 00:13:50,680 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1414#true} {1414#true} #143#return; {1414#true} is VALID [2020-07-18 00:13:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:50,793 INFO L280 TraceCheckUtils]: 0: Hoare triple {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {1414#true} is VALID [2020-07-18 00:13:50,794 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-18 00:13:50,794 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {1414#true} is VALID [2020-07-18 00:13:50,794 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {1414#true} is VALID [2020-07-18 00:13:50,794 INFO L280 TraceCheckUtils]: 4: Hoare triple {1414#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {1414#true} is VALID [2020-07-18 00:13:50,795 INFO L280 TraceCheckUtils]: 5: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,795 INFO L280 TraceCheckUtils]: 6: Hoare triple {1414#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {1414#true} is VALID [2020-07-18 00:13:50,795 INFO L280 TraceCheckUtils]: 7: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-18 00:13:50,795 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,795 INFO L280 TraceCheckUtils]: 9: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {1414#true} is VALID [2020-07-18 00:13:50,796 INFO L280 TraceCheckUtils]: 10: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-18 00:13:50,796 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-18 00:13:50,796 INFO L280 TraceCheckUtils]: 12: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-18 00:13:50,796 INFO L280 TraceCheckUtils]: 13: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); {1414#true} is VALID [2020-07-18 00:13:50,797 INFO L280 TraceCheckUtils]: 14: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); {1414#true} is VALID [2020-07-18 00:13:50,797 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-18 00:13:50,798 INFO L280 TraceCheckUtils]: 16: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,798 INFO L280 TraceCheckUtils]: 17: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,804 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:50,805 INFO L280 TraceCheckUtils]: 0: Hoare triple {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {1414#true} is VALID [2020-07-18 00:13:50,805 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} ~y := #in~y; {1414#true} is VALID [2020-07-18 00:13:50,806 INFO L263 TraceCheckUtils]: 2: Hoare triple {1414#true} call #t~ret2 := __fpclassify_float(~x); {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:50,817 INFO L280 TraceCheckUtils]: 3: Hoare triple {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {1414#true} is VALID [2020-07-18 00:13:50,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-18 00:13:50,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {1414#true} is VALID [2020-07-18 00:13:50,818 INFO L280 TraceCheckUtils]: 6: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {1414#true} is VALID [2020-07-18 00:13:50,818 INFO L280 TraceCheckUtils]: 7: Hoare triple {1414#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {1414#true} is VALID [2020-07-18 00:13:50,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,819 INFO L280 TraceCheckUtils]: 9: Hoare triple {1414#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {1414#true} is VALID [2020-07-18 00:13:50,819 INFO L280 TraceCheckUtils]: 10: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-18 00:13:50,820 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,821 INFO L280 TraceCheckUtils]: 12: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {1414#true} is VALID [2020-07-18 00:13:50,821 INFO L280 TraceCheckUtils]: 13: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-18 00:13:50,821 INFO L280 TraceCheckUtils]: 14: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-18 00:13:50,821 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-18 00:13:50,822 INFO L280 TraceCheckUtils]: 16: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); {1414#true} is VALID [2020-07-18 00:13:50,822 INFO L280 TraceCheckUtils]: 17: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); {1414#true} is VALID [2020-07-18 00:13:50,822 INFO L280 TraceCheckUtils]: 18: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-18 00:13:50,826 INFO L280 TraceCheckUtils]: 19: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,834 INFO L280 TraceCheckUtils]: 20: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,835 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:50,836 INFO L280 TraceCheckUtils]: 22: Hoare triple {1470#(= 1 |fmax_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1470#(= 1 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:50,837 INFO L280 TraceCheckUtils]: 23: Hoare triple {1470#(= 1 |fmax_float_#t~ret2|)} assume 0 == #t~ret2; {1415#false} is VALID [2020-07-18 00:13:50,837 INFO L280 TraceCheckUtils]: 24: Hoare triple {1415#false} havoc #t~ret2; {1415#false} is VALID [2020-07-18 00:13:50,838 INFO L280 TraceCheckUtils]: 25: Hoare triple {1415#false} #res := ~y; {1415#false} is VALID [2020-07-18 00:13:50,838 INFO L280 TraceCheckUtils]: 26: Hoare triple {1415#false} assume true; {1415#false} is VALID [2020-07-18 00:13:50,840 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1415#false} {1414#true} #135#return; {1415#false} is VALID [2020-07-18 00:13:50,844 INFO L263 TraceCheckUtils]: 0: Hoare triple {1414#true} call ULTIMATE.init(); {1449#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:13:50,845 INFO L280 TraceCheckUtils]: 1: Hoare triple {1449#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1414#true} is VALID [2020-07-18 00:13:50,849 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} #valid := #valid[0 := 0]; {1414#true} is VALID [2020-07-18 00:13:50,849 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} assume 0 < #StackHeapBarrier; {1414#true} is VALID [2020-07-18 00:13:50,849 INFO L280 TraceCheckUtils]: 4: Hoare triple {1414#true} assume true; {1414#true} is VALID [2020-07-18 00:13:50,850 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1414#true} {1414#true} #143#return; {1414#true} is VALID [2020-07-18 00:13:50,850 INFO L263 TraceCheckUtils]: 6: Hoare triple {1414#true} call #t~ret10 := main(); {1414#true} is VALID [2020-07-18 00:13:50,850 INFO L280 TraceCheckUtils]: 7: Hoare triple {1414#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {1414#true} is VALID [2020-07-18 00:13:50,850 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} ~y~0 := 0.0; {1414#true} is VALID [2020-07-18 00:13:50,857 INFO L263 TraceCheckUtils]: 9: Hoare triple {1414#true} call #t~ret7 := fmax_float(~x~0, ~y~0); {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:50,858 INFO L280 TraceCheckUtils]: 10: Hoare triple {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {1414#true} is VALID [2020-07-18 00:13:50,858 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} ~y := #in~y; {1414#true} is VALID [2020-07-18 00:13:50,859 INFO L263 TraceCheckUtils]: 12: Hoare triple {1414#true} call #t~ret2 := __fpclassify_float(~x); {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:50,859 INFO L280 TraceCheckUtils]: 13: Hoare triple {1450#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {1414#true} is VALID [2020-07-18 00:13:50,860 INFO L280 TraceCheckUtils]: 14: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-18 00:13:50,860 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L22-2 {1414#true} is VALID [2020-07-18 00:13:50,860 INFO L280 TraceCheckUtils]: 16: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L23 {1414#true} is VALID [2020-07-18 00:13:50,860 INFO L280 TraceCheckUtils]: 17: Hoare triple {1414#true} SUMMARY for call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L24 {1414#true} is VALID [2020-07-18 00:13:50,861 INFO L280 TraceCheckUtils]: 18: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,861 INFO L280 TraceCheckUtils]: 19: Hoare triple {1414#true} SUMMARY for call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L25-1 {1414#true} is VALID [2020-07-18 00:13:50,861 INFO L280 TraceCheckUtils]: 20: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-18 00:13:50,861 INFO L280 TraceCheckUtils]: 21: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-18 00:13:50,862 INFO L280 TraceCheckUtils]: 22: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L23-1 {1414#true} is VALID [2020-07-18 00:13:50,862 INFO L280 TraceCheckUtils]: 23: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-18 00:13:50,862 INFO L280 TraceCheckUtils]: 24: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-18 00:13:50,862 INFO L280 TraceCheckUtils]: 25: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-18 00:13:50,862 INFO L280 TraceCheckUtils]: 26: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); {1414#true} is VALID [2020-07-18 00:13:50,863 INFO L280 TraceCheckUtils]: 27: Hoare triple {1414#true} assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); {1414#true} is VALID [2020-07-18 00:13:50,863 INFO L280 TraceCheckUtils]: 28: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-18 00:13:50,863 INFO L280 TraceCheckUtils]: 29: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,864 INFO L280 TraceCheckUtils]: 30: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-18 00:13:50,865 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:50,865 INFO L280 TraceCheckUtils]: 32: Hoare triple {1470#(= 1 |fmax_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1470#(= 1 |fmax_float_#t~ret2|)} is VALID [2020-07-18 00:13:50,866 INFO L280 TraceCheckUtils]: 33: Hoare triple {1470#(= 1 |fmax_float_#t~ret2|)} assume 0 == #t~ret2; {1415#false} is VALID [2020-07-18 00:13:50,866 INFO L280 TraceCheckUtils]: 34: Hoare triple {1415#false} havoc #t~ret2; {1415#false} is VALID [2020-07-18 00:13:50,866 INFO L280 TraceCheckUtils]: 35: Hoare triple {1415#false} #res := ~y; {1415#false} is VALID [2020-07-18 00:13:50,866 INFO L280 TraceCheckUtils]: 36: Hoare triple {1415#false} assume true; {1415#false} is VALID [2020-07-18 00:13:50,866 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {1415#false} {1414#true} #135#return; {1415#false} is VALID [2020-07-18 00:13:50,867 INFO L280 TraceCheckUtils]: 38: Hoare triple {1415#false} ~res~0 := #t~ret7; {1415#false} is VALID [2020-07-18 00:13:50,867 INFO L280 TraceCheckUtils]: 39: Hoare triple {1415#false} havoc #t~ret7; {1415#false} is VALID [2020-07-18 00:13:50,867 INFO L280 TraceCheckUtils]: 40: Hoare triple {1415#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {1415#false} is VALID [2020-07-18 00:13:50,867 INFO L280 TraceCheckUtils]: 41: Hoare triple {1415#false} assume !#t~short9; {1415#false} is VALID [2020-07-18 00:13:50,867 INFO L280 TraceCheckUtils]: 42: Hoare triple {1415#false} assume !#t~short9; {1415#false} is VALID [2020-07-18 00:13:50,868 INFO L280 TraceCheckUtils]: 43: Hoare triple {1415#false} havoc #t~ret8; {1415#false} is VALID [2020-07-18 00:13:50,868 INFO L280 TraceCheckUtils]: 44: Hoare triple {1415#false} havoc #t~short9; {1415#false} is VALID [2020-07-18 00:13:50,868 INFO L280 TraceCheckUtils]: 45: Hoare triple {1415#false} assume !false; {1415#false} is VALID [2020-07-18 00:13:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:50,875 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:50,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667454552] [2020-07-18 00:13:50,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:50,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 00:13:50,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63295812] [2020-07-18 00:13:50,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-07-18 00:13:50,878 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:50,878 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 00:13:50,930 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:50,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 00:13:50,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:50,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 00:13:50,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:13:50,931 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-07-18 00:13:51,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:51,621 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-07-18 00:13:51,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-18 00:13:51,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-07-18 00:13:51,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:51,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:13:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:13:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:13:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-18 00:13:51,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-18 00:13:51,765 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:51,770 INFO L225 Difference]: With dead ends: 121 [2020-07-18 00:13:51,771 INFO L226 Difference]: Without dead ends: 90 [2020-07-18 00:13:51,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:13:51,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-07-18 00:13:51,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-07-18 00:13:51,859 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:51,859 INFO L82 GeneralOperation]: Start isEquivalent. First operand 90 states. Second operand 85 states. [2020-07-18 00:13:51,859 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 85 states. [2020-07-18 00:13:51,860 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 85 states. [2020-07-18 00:13:51,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:51,867 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-07-18 00:13:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2020-07-18 00:13:51,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:51,868 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:51,868 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 90 states. [2020-07-18 00:13:51,868 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 90 states. [2020-07-18 00:13:51,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:51,873 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-07-18 00:13:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2020-07-18 00:13:51,876 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:51,876 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:51,876 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:51,876 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:51,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-18 00:13:51,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-07-18 00:13:51,886 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-07-18 00:13:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:51,887 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-07-18 00:13:51,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 00:13:51,888 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states and 94 transitions. [2020-07-18 00:13:51,995 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-07-18 00:13:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-18 00:13:51,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:52,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:52,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:13:52,000 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:52,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:52,001 INFO L82 PathProgramCache]: Analyzing trace with hash -969429089, now seen corresponding path program 1 times [2020-07-18 00:13:52,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:52,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197169898] [2020-07-18 00:13:52,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:52,198 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:52,199 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 00:13:52,199 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 00:13:52,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 00:13:52,217 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 00:13:52,217 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:52,217 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:52,217 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 00:13:52,217 WARN L170 areAnnotationChecker]: fmax_floatENTRY has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: __fpclassify_floatENTRY has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: L73 has no Hoare annotation [2020-07-18 00:13:52,218 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-18 00:13:52,219 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L56-2 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L56-2 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L75-1 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L43-1 has no Hoare annotation [2020-07-18 00:13:52,220 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L56-3 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L75-2 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L43-2 has no Hoare annotation [2020-07-18 00:13:52,221 WARN L170 areAnnotationChecker]: L43-2 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-18 00:13:52,222 WARN L170 areAnnotationChecker]: L43-3 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L43-4 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: __fpclassify_floatFINAL has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-18 00:13:52,223 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L78-1 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L78-1 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L44 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: __fpclassify_floatEXIT has no Hoare annotation [2020-07-18 00:13:52,224 WARN L170 areAnnotationChecker]: __fpclassify_floatEXIT has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L78-3 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L78-2 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L78-2 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L78-6 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: L78-6 has no Hoare annotation [2020-07-18 00:13:52,225 WARN L170 areAnnotationChecker]: fmax_floatFINAL has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L47-1 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L59-2 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L78-4 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L78-7 has no Hoare annotation [2020-07-18 00:13:52,226 WARN L170 areAnnotationChecker]: L78-9 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: fmax_floatEXIT has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L25-3 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L59-3 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L78-8 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L78-10 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L47-3 has no Hoare annotation [2020-07-18 00:13:52,227 WARN L170 areAnnotationChecker]: L47-4 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L79 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L83 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 00:13:52,228 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L50-1 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L56-1 has no Hoare annotation [2020-07-18 00:13:52,229 WARN L170 areAnnotationChecker]: L56-1 has no Hoare annotation [2020-07-18 00:13:52,230 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 00:13:52,230 WARN L170 areAnnotationChecker]: L50-4 has no Hoare annotation [2020-07-18 00:13:52,230 WARN L170 areAnnotationChecker]: L50-5 has no Hoare annotation [2020-07-18 00:13:52,230 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:13:52,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:13:52 BoogieIcfgContainer [2020-07-18 00:13:52,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:13:52,240 INFO L168 Benchmark]: Toolchain (without parser) took 5899.11 ms. Allocated memory was 145.2 MB in the beginning and 278.4 MB in the end (delta: 133.2 MB). Free memory was 103.4 MB in the beginning and 195.3 MB in the end (delta: -91.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,240 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.32 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,242 INFO L168 Benchmark]: Boogie Preprocessor took 160.14 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 91.5 MB in the beginning and 180.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,243 INFO L168 Benchmark]: RCFGBuilder took 649.84 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,244 INFO L168 Benchmark]: TraceAbstraction took 4802.53 ms. Allocated memory was 202.9 MB in the beginning and 278.4 MB in the end (delta: 75.5 MB). Free memory was 141.9 MB in the beginning and 195.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:52,247 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 0.86 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.32 ms. Allocated memory is still 145.2 MB. Free memory was 102.9 MB in the beginning and 91.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 160.14 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 91.5 MB in the beginning and 180.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 649.84 ms. Allocated memory is still 202.9 MB. Free memory was 180.3 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4802.53 ms. Allocated memory was 202.9 MB in the beginning and 278.4 MB in the end (delta: 75.5 MB). Free memory was 141.9 MB in the beginning and 195.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someUnaryFLOAToperation at line 72. Possible FailurePath: [L72] float x = -0.0f; [L73] float y = 0.0f; [L75] CALL, EXPR fmax_float(x, y) [L43] CALL, EXPR __fpclassify_float(x) [L20] __uint32_t w; [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; [L43] RET, EXPR __fpclassify_float(x) [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; [L75] RET, EXPR fmax_float(x, y) [L75] float res = fmax_float(x, y); [L78] EXPR res == 0.0f && __signbit_float(res) == 0 [L78] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 53 SDslu, 494 SDs, 0 SdLazy, 352 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred 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: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...