/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_1232a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:44,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:44,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:44,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:44,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:44,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:44,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:44,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:44,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:44,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:44,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:44,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:44,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:44,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:44,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:44,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:44,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:44,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:44,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:44,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:44,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:44,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:44,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:44,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:44,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:44,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:44,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:44,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:44,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:44,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:44,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:44,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:44,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:44,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:44,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:44,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:44,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:44,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:44,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:44,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:44,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:44,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:44,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:44,565 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:44,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:44,566 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:44,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:44,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:44,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:44,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:44,875 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:44,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2020-07-10 18:35:44,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a26a32e3/79c49f04c801466bad31370f997109f3/FLAGb5fcdf7f9 [2020-07-10 18:35:45,476 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:45,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232a.c [2020-07-10 18:35:45,483 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a26a32e3/79c49f04c801466bad31370f997109f3/FLAGb5fcdf7f9 [2020-07-10 18:35:45,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a26a32e3/79c49f04c801466bad31370f997109f3 [2020-07-10 18:35:45,792 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:45,794 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:45,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:45,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:45,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:45,801 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:45" (1/1) ... [2020-07-10 18:35:45,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1510d935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:45, skipping insertion in model container [2020-07-10 18:35:45,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:45" (1/1) ... [2020-07-10 18:35:45,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:45,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:46,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:46,058 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:46,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:46,113 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:46,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46 WrapperNode [2020-07-10 18:35:46,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:46,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:46,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:46,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:46,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (1/1) ... [2020-07-10 18:35:46,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:46,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:46,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:46,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:46,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (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 [2020-07-10 18:35:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2020-07-10 18:35:46,324 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2020-07-10 18:35:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-10 18:35:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:46,899 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:46,899 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-10 18:35:46,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:46 BoogieIcfgContainer [2020-07-10 18:35:46,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:46,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:46,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:46,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:46,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:45" (1/3) ... [2020-07-10 18:35:46,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24267c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:46, skipping insertion in model container [2020-07-10 18:35:46,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:46" (2/3) ... [2020-07-10 18:35:46,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24267c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:46, skipping insertion in model container [2020-07-10 18:35:46,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:46" (3/3) ... [2020-07-10 18:35:46,915 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2020-07-10 18:35:46,926 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:46,935 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:46,950 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:46,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:46,976 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:46,976 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:46,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:46,977 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:46,977 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:46,977 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:46,977 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-07-10 18:35:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-10 18:35:47,011 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:47,012 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] [2020-07-10 18:35:47,013 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:47,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:47,019 INFO L82 PathProgramCache]: Analyzing trace with hash -380814032, now seen corresponding path program 1 times [2020-07-10 18:35:47,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:47,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095456618] [2020-07-10 18:35:47,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:47,255 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 [2020-07-10 18:35:47,256 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-10 18:35:47,256 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-10 18:35:47,257 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-10 18:35:47,258 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {92#true} {92#true} #143#return; {92#true} is VALID [2020-07-10 18:35:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:47,310 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 [2020-07-10 18:35:47,310 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-10 18:35:47,312 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-10 18:35:47,312 INFO L280 TraceCheckUtils]: 3: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-10 18:35:47,313 INFO L280 TraceCheckUtils]: 4: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-10 18:35:47,313 INFO L280 TraceCheckUtils]: 5: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-10 18:35:47,313 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-10 18:35:47,314 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 [2020-07-10 18:35:47,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {92#true} ~y := #in~y; {92#true} is VALID [2020-07-10 18:35:47,317 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 [2020-07-10 18:35:47,317 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 [2020-07-10 18:35:47,318 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-10 18:35:47,319 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-10 18:35:47,319 INFO L280 TraceCheckUtils]: 6: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-10 18:35:47,319 INFO L280 TraceCheckUtils]: 7: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-10 18:35:47,320 INFO L280 TraceCheckUtils]: 8: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-10 18:35:47,320 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-10 18:35:47,320 INFO L280 TraceCheckUtils]: 10: Hoare triple {93#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {93#false} is VALID [2020-07-10 18:35:47,321 INFO L280 TraceCheckUtils]: 11: Hoare triple {93#false} assume 0 == #t~ret2; {93#false} is VALID [2020-07-10 18:35:47,322 INFO L280 TraceCheckUtils]: 12: Hoare triple {93#false} havoc #t~ret2; {93#false} is VALID [2020-07-10 18:35:47,322 INFO L280 TraceCheckUtils]: 13: Hoare triple {93#false} #res := ~y; {93#false} is VALID [2020-07-10 18:35:47,323 INFO L280 TraceCheckUtils]: 14: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-10 18:35:47,323 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {93#false} {92#true} #135#return; {93#false} is VALID [2020-07-10 18:35:47,326 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 [2020-07-10 18:35:47,327 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 [2020-07-10 18:35:47,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {92#true} #valid := #valid[0 := 0]; {92#true} is VALID [2020-07-10 18:35:47,328 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#true} assume 0 < #StackHeapBarrier; {92#true} is VALID [2020-07-10 18:35:47,328 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#true} assume true; {92#true} is VALID [2020-07-10 18:35:47,328 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {92#true} {92#true} #143#return; {92#true} is VALID [2020-07-10 18:35:47,329 INFO L263 TraceCheckUtils]: 6: Hoare triple {92#true} call #t~ret10 := main(); {92#true} is VALID [2020-07-10 18:35:47,329 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#true} ~x~0 := 0.0; {92#true} is VALID [2020-07-10 18:35:47,330 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#true} ~y~0 := ~someUnaryFLOAToperation(0.0); {92#true} is VALID [2020-07-10 18:35:47,331 INFO L263 TraceCheckUtils]: 9: Hoare triple {92#true} call #t~ret7 := fmin_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 [2020-07-10 18:35:47,332 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 [2020-07-10 18:35:47,332 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#true} ~y := #in~y; {92#true} is VALID [2020-07-10 18:35:47,334 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 [2020-07-10 18:35:47,335 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 [2020-07-10 18:35:47,335 INFO L280 TraceCheckUtils]: 14: Hoare triple {92#true} havoc ~w~0; {92#true} is VALID [2020-07-10 18:35:47,338 INFO L280 TraceCheckUtils]: 15: Hoare triple {92#true} assume !true; {93#false} is VALID [2020-07-10 18:35:47,339 INFO L280 TraceCheckUtils]: 16: Hoare triple {93#false} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {93#false} is VALID [2020-07-10 18:35:47,339 INFO L280 TraceCheckUtils]: 17: Hoare triple {93#false} #res := 2; {93#false} is VALID [2020-07-10 18:35:47,340 INFO L280 TraceCheckUtils]: 18: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-10 18:35:47,340 INFO L275 TraceCheckUtils]: 19: Hoare quadruple {93#false} {92#true} #139#return; {93#false} is VALID [2020-07-10 18:35:47,340 INFO L280 TraceCheckUtils]: 20: Hoare triple {93#false} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {93#false} is VALID [2020-07-10 18:35:47,341 INFO L280 TraceCheckUtils]: 21: Hoare triple {93#false} assume 0 == #t~ret2; {93#false} is VALID [2020-07-10 18:35:47,341 INFO L280 TraceCheckUtils]: 22: Hoare triple {93#false} havoc #t~ret2; {93#false} is VALID [2020-07-10 18:35:47,341 INFO L280 TraceCheckUtils]: 23: Hoare triple {93#false} #res := ~y; {93#false} is VALID [2020-07-10 18:35:47,342 INFO L280 TraceCheckUtils]: 24: Hoare triple {93#false} assume true; {93#false} is VALID [2020-07-10 18:35:47,342 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {93#false} {92#true} #135#return; {93#false} is VALID [2020-07-10 18:35:47,343 INFO L280 TraceCheckUtils]: 26: Hoare triple {93#false} ~res~0 := #t~ret7; {93#false} is VALID [2020-07-10 18:35:47,343 INFO L280 TraceCheckUtils]: 27: Hoare triple {93#false} havoc #t~ret7; {93#false} is VALID [2020-07-10 18:35:47,343 INFO L280 TraceCheckUtils]: 28: Hoare triple {93#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {93#false} is VALID [2020-07-10 18:35:47,344 INFO L280 TraceCheckUtils]: 29: Hoare triple {93#false} assume !#t~short9; {93#false} is VALID [2020-07-10 18:35:47,344 INFO L280 TraceCheckUtils]: 30: Hoare triple {93#false} assume !#t~short9; {93#false} is VALID [2020-07-10 18:35:47,344 INFO L280 TraceCheckUtils]: 31: Hoare triple {93#false} havoc #t~short9; {93#false} is VALID [2020-07-10 18:35:47,345 INFO L280 TraceCheckUtils]: 32: Hoare triple {93#false} havoc #t~ret8; {93#false} is VALID [2020-07-10 18:35:47,345 INFO L280 TraceCheckUtils]: 33: Hoare triple {93#false} assume !false; {93#false} is VALID [2020-07-10 18:35:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:47,351 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:47,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1095456618] [2020-07-10 18:35:47,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:47,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:47,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404532789] [2020-07-10 18:35:47,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-10 18:35:47,367 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:47,371 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:47,439 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:47,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:47,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:47,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:47,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:47,454 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 4 states. [2020-07-10 18:35:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:48,176 INFO L93 Difference]: Finished difference Result 164 states and 192 transitions. [2020-07-10 18:35:48,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:48,177 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-10 18:35:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2020-07-10 18:35:48,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2020-07-10 18:35:48,204 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 192 transitions. [2020-07-10 18:35:48,456 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 192 edges. 192 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:48,473 INFO L225 Difference]: With dead ends: 164 [2020-07-10 18:35:48,474 INFO L226 Difference]: Without dead ends: 81 [2020-07-10 18:35:48,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 18:35:48,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-10 18:35:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-10 18:35:48,599 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:48,600 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:48,601 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:48,601 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:48,610 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-10 18:35:48,610 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:48,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:48,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:48,612 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:48,613 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:48,620 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-10 18:35:48,620 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:48,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:48,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:48,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:48,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-10 18:35:48,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-07-10 18:35:48,630 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 34 [2020-07-10 18:35:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:48,631 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-07-10 18:35:48,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:48,631 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 89 transitions. [2020-07-10 18:35:48,755 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:48,755 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-10 18:35:48,757 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:48,757 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] [2020-07-10 18:35:48,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:48,758 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:48,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:48,759 INFO L82 PathProgramCache]: Analyzing trace with hash 133434162, now seen corresponding path program 1 times [2020-07-10 18:35:48,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:48,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226477718] [2020-07-10 18:35:48,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:48,855 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 [2020-07-10 18:35:48,855 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} #valid := #valid[0 := 0]; {781#true} is VALID [2020-07-10 18:35:48,856 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} assume 0 < #StackHeapBarrier; {781#true} is VALID [2020-07-10 18:35:48,856 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} assume true; {781#true} is VALID [2020-07-10 18:35:48,856 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {781#true} {781#true} #143#return; {781#true} is VALID [2020-07-10 18:35:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:48,954 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 [2020-07-10 18:35:48,954 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-10 18:35:48,955 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {781#true} is VALID [2020-07-10 18:35:48,955 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {781#true} is VALID [2020-07-10 18:35:48,956 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: L17 {781#true} is VALID [2020-07-10 18:35:48,956 INFO L280 TraceCheckUtils]: 5: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,956 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: L18-1 {781#true} is VALID [2020-07-10 18:35:48,957 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-10 18:35:48,957 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,957 INFO L280 TraceCheckUtils]: 9: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {781#true} is VALID [2020-07-10 18:35:48,958 INFO L280 TraceCheckUtils]: 10: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-10 18:35:48,958 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-10 18:35:48,958 INFO L280 TraceCheckUtils]: 12: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-10 18:35:48,959 INFO L280 TraceCheckUtils]: 13: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,960 INFO L280 TraceCheckUtils]: 14: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,961 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:48,962 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 [2020-07-10 18:35:48,963 INFO L280 TraceCheckUtils]: 1: Hoare triple {781#true} ~y := #in~y; {781#true} is VALID [2020-07-10 18:35:48,964 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 [2020-07-10 18:35:48,964 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 [2020-07-10 18:35:48,965 INFO L280 TraceCheckUtils]: 4: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-10 18:35:48,965 INFO L280 TraceCheckUtils]: 5: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {781#true} is VALID [2020-07-10 18:35:48,965 INFO L280 TraceCheckUtils]: 6: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {781#true} is VALID [2020-07-10 18:35:48,966 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: L17 {781#true} is VALID [2020-07-10 18:35:48,966 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,966 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: L18-1 {781#true} is VALID [2020-07-10 18:35:48,967 INFO L280 TraceCheckUtils]: 10: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-10 18:35:48,967 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,967 INFO L280 TraceCheckUtils]: 12: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {781#true} is VALID [2020-07-10 18:35:48,968 INFO L280 TraceCheckUtils]: 13: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-10 18:35:48,968 INFO L280 TraceCheckUtils]: 14: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-10 18:35:48,968 INFO L280 TraceCheckUtils]: 15: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-10 18:35:48,969 INFO L280 TraceCheckUtils]: 16: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,970 INFO L280 TraceCheckUtils]: 17: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,971 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:48,972 INFO L280 TraceCheckUtils]: 19: Hoare triple {831#(<= 2 |fmin_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {831#(<= 2 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:48,973 INFO L280 TraceCheckUtils]: 20: Hoare triple {831#(<= 2 |fmin_float_#t~ret2|)} assume 0 == #t~ret2; {782#false} is VALID [2020-07-10 18:35:48,973 INFO L280 TraceCheckUtils]: 21: Hoare triple {782#false} havoc #t~ret2; {782#false} is VALID [2020-07-10 18:35:48,973 INFO L280 TraceCheckUtils]: 22: Hoare triple {782#false} #res := ~y; {782#false} is VALID [2020-07-10 18:35:48,974 INFO L280 TraceCheckUtils]: 23: Hoare triple {782#false} assume true; {782#false} is VALID [2020-07-10 18:35:48,974 INFO L275 TraceCheckUtils]: 24: Hoare quadruple {782#false} {781#true} #135#return; {782#false} is VALID [2020-07-10 18:35:48,976 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 [2020-07-10 18:35:48,977 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 [2020-07-10 18:35:48,977 INFO L280 TraceCheckUtils]: 2: Hoare triple {781#true} #valid := #valid[0 := 0]; {781#true} is VALID [2020-07-10 18:35:48,977 INFO L280 TraceCheckUtils]: 3: Hoare triple {781#true} assume 0 < #StackHeapBarrier; {781#true} is VALID [2020-07-10 18:35:48,978 INFO L280 TraceCheckUtils]: 4: Hoare triple {781#true} assume true; {781#true} is VALID [2020-07-10 18:35:48,978 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {781#true} {781#true} #143#return; {781#true} is VALID [2020-07-10 18:35:48,978 INFO L263 TraceCheckUtils]: 6: Hoare triple {781#true} call #t~ret10 := main(); {781#true} is VALID [2020-07-10 18:35:48,979 INFO L280 TraceCheckUtils]: 7: Hoare triple {781#true} ~x~0 := 0.0; {781#true} is VALID [2020-07-10 18:35:48,979 INFO L280 TraceCheckUtils]: 8: Hoare triple {781#true} ~y~0 := ~someUnaryFLOAToperation(0.0); {781#true} is VALID [2020-07-10 18:35:48,980 INFO L263 TraceCheckUtils]: 9: Hoare triple {781#true} call #t~ret7 := fmin_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 [2020-07-10 18:35:48,981 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 [2020-07-10 18:35:48,981 INFO L280 TraceCheckUtils]: 11: Hoare triple {781#true} ~y := #in~y; {781#true} is VALID [2020-07-10 18:35:48,982 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 [2020-07-10 18:35:48,983 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 [2020-07-10 18:35:48,983 INFO L280 TraceCheckUtils]: 14: Hoare triple {781#true} havoc ~w~0; {781#true} is VALID [2020-07-10 18:35:48,983 INFO L280 TraceCheckUtils]: 15: Hoare triple {781#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {781#true} is VALID [2020-07-10 18:35:48,984 INFO L280 TraceCheckUtils]: 16: Hoare triple {781#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {781#true} is VALID [2020-07-10 18:35:48,984 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: L17 {781#true} is VALID [2020-07-10 18:35:48,984 INFO L280 TraceCheckUtils]: 18: Hoare triple {781#true} ~w~0 := #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,985 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: L18-1 {781#true} is VALID [2020-07-10 18:35:48,985 INFO L280 TraceCheckUtils]: 20: Hoare triple {781#true} havoc #t~union1; {781#true} is VALID [2020-07-10 18:35:48,985 INFO L280 TraceCheckUtils]: 21: Hoare triple {781#true} havoc #t~mem0; {781#true} is VALID [2020-07-10 18:35:48,986 INFO L280 TraceCheckUtils]: 22: Hoare triple {781#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {781#true} is VALID [2020-07-10 18:35:48,986 INFO L280 TraceCheckUtils]: 23: Hoare triple {781#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {781#true} is VALID [2020-07-10 18:35:48,986 INFO L280 TraceCheckUtils]: 24: Hoare triple {781#true} goto; {781#true} is VALID [2020-07-10 18:35:48,986 INFO L280 TraceCheckUtils]: 25: Hoare triple {781#true} assume 0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296; {781#true} is VALID [2020-07-10 18:35:48,987 INFO L280 TraceCheckUtils]: 26: Hoare triple {781#true} #res := 2; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,988 INFO L280 TraceCheckUtils]: 27: Hoare triple {832#(<= 2 |__fpclassify_float_#res|)} assume true; {832#(<= 2 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:48,989 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {832#(<= 2 |__fpclassify_float_#res|)} {781#true} #139#return; {831#(<= 2 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:48,990 INFO L280 TraceCheckUtils]: 29: Hoare triple {831#(<= 2 |fmin_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {831#(<= 2 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:48,991 INFO L280 TraceCheckUtils]: 30: Hoare triple {831#(<= 2 |fmin_float_#t~ret2|)} assume 0 == #t~ret2; {782#false} is VALID [2020-07-10 18:35:48,992 INFO L280 TraceCheckUtils]: 31: Hoare triple {782#false} havoc #t~ret2; {782#false} is VALID [2020-07-10 18:35:48,992 INFO L280 TraceCheckUtils]: 32: Hoare triple {782#false} #res := ~y; {782#false} is VALID [2020-07-10 18:35:48,992 INFO L280 TraceCheckUtils]: 33: Hoare triple {782#false} assume true; {782#false} is VALID [2020-07-10 18:35:48,992 INFO L275 TraceCheckUtils]: 34: Hoare quadruple {782#false} {781#true} #135#return; {782#false} is VALID [2020-07-10 18:35:48,993 INFO L280 TraceCheckUtils]: 35: Hoare triple {782#false} ~res~0 := #t~ret7; {782#false} is VALID [2020-07-10 18:35:48,993 INFO L280 TraceCheckUtils]: 36: Hoare triple {782#false} havoc #t~ret7; {782#false} is VALID [2020-07-10 18:35:48,993 INFO L280 TraceCheckUtils]: 37: Hoare triple {782#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {782#false} is VALID [2020-07-10 18:35:48,994 INFO L280 TraceCheckUtils]: 38: Hoare triple {782#false} assume !#t~short9; {782#false} is VALID [2020-07-10 18:35:48,994 INFO L280 TraceCheckUtils]: 39: Hoare triple {782#false} assume !#t~short9; {782#false} is VALID [2020-07-10 18:35:48,994 INFO L280 TraceCheckUtils]: 40: Hoare triple {782#false} havoc #t~short9; {782#false} is VALID [2020-07-10 18:35:48,995 INFO L280 TraceCheckUtils]: 41: Hoare triple {782#false} havoc #t~ret8; {782#false} is VALID [2020-07-10 18:35:48,995 INFO L280 TraceCheckUtils]: 42: Hoare triple {782#false} assume !false; {782#false} is VALID [2020-07-10 18:35:48,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:48,998 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:48,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226477718] [2020-07-10 18:35:48,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:48,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 18:35:49,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193617369] [2020-07-10 18:35:49,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-10 18:35:49,001 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:49,001 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 18:35:49,048 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:49,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 18:35:49,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:49,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 18:35:49,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 18:35:49,049 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand 6 states. [2020-07-10 18:35:49,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:49,688 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2020-07-10 18:35:49,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 18:35:49,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-10 18:35:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 18:35:49,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-10 18:35:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 18:35:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-10 18:35:49,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-10 18:35:49,833 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:49,839 INFO L225 Difference]: With dead ends: 117 [2020-07-10 18:35:49,839 INFO L226 Difference]: Without dead ends: 86 [2020-07-10 18:35:49,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-10 18:35:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-07-10 18:35:49,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 85. [2020-07-10 18:35:49,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:49,931 INFO L82 GeneralOperation]: Start isEquivalent. First operand 86 states. Second operand 85 states. [2020-07-10 18:35:49,931 INFO L74 IsIncluded]: Start isIncluded. First operand 86 states. Second operand 85 states. [2020-07-10 18:35:49,932 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 85 states. [2020-07-10 18:35:49,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:49,945 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-07-10 18:35:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-07-10 18:35:49,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:49,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:49,946 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 86 states. [2020-07-10 18:35:49,946 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 86 states. [2020-07-10 18:35:49,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:49,958 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2020-07-10 18:35:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2020-07-10 18:35:49,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:49,960 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:49,960 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:49,960 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:49,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-10 18:35:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-07-10 18:35:49,973 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 43 [2020-07-10 18:35:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:49,974 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-07-10 18:35:49,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 18:35:49,974 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states and 94 transitions. [2020-07-10 18:35:50,074 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-07-10 18:35:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-10 18:35:50,076 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:50,077 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] [2020-07-10 18:35:50,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:50,077 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:50,077 INFO L82 PathProgramCache]: Analyzing trace with hash 619089939, now seen corresponding path program 1 times [2020-07-10 18:35:50,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:50,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832318809] [2020-07-10 18:35:50,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,203 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 [2020-07-10 18:35:50,204 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} #valid := #valid[0 := 0]; {1414#true} is VALID [2020-07-10 18:35:50,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} assume 0 < #StackHeapBarrier; {1414#true} is VALID [2020-07-10 18:35:50,204 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} assume true; {1414#true} is VALID [2020-07-10 18:35:50,205 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1414#true} {1414#true} #143#return; {1414#true} is VALID [2020-07-10 18:35:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:50,308 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 [2020-07-10 18:35:50,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-10 18:35:50,308 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {1414#true} is VALID [2020-07-10 18:35:50,309 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {1414#true} is VALID [2020-07-10 18:35:50,309 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: L17 {1414#true} is VALID [2020-07-10 18:35:50,309 INFO L280 TraceCheckUtils]: 5: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,309 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: L18-1 {1414#true} is VALID [2020-07-10 18:35:50,310 INFO L280 TraceCheckUtils]: 7: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-10 18:35:50,310 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,310 INFO L280 TraceCheckUtils]: 9: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {1414#true} is VALID [2020-07-10 18:35:50,310 INFO L280 TraceCheckUtils]: 10: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-10 18:35:50,311 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-10 18:35:50,311 INFO L280 TraceCheckUtils]: 12: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-10 18:35:50,311 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 [2020-07-10 18:35:50,312 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 [2020-07-10 18:35:50,312 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-10 18:35:50,313 INFO L280 TraceCheckUtils]: 16: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,313 INFO L280 TraceCheckUtils]: 17: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,315 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:50,316 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 [2020-07-10 18:35:50,316 INFO L280 TraceCheckUtils]: 1: Hoare triple {1414#true} ~y := #in~y; {1414#true} is VALID [2020-07-10 18:35:50,317 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 [2020-07-10 18:35:50,318 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 [2020-07-10 18:35:50,318 INFO L280 TraceCheckUtils]: 4: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-10 18:35:50,318 INFO L280 TraceCheckUtils]: 5: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {1414#true} is VALID [2020-07-10 18:35:50,318 INFO L280 TraceCheckUtils]: 6: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {1414#true} is VALID [2020-07-10 18:35:50,319 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: L17 {1414#true} is VALID [2020-07-10 18:35:50,319 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,319 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: L18-1 {1414#true} is VALID [2020-07-10 18:35:50,320 INFO L280 TraceCheckUtils]: 10: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-10 18:35:50,320 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,320 INFO L280 TraceCheckUtils]: 12: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {1414#true} is VALID [2020-07-10 18:35:50,320 INFO L280 TraceCheckUtils]: 13: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-10 18:35:50,321 INFO L280 TraceCheckUtils]: 14: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-10 18:35:50,321 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-10 18:35:50,321 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 [2020-07-10 18:35:50,321 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 [2020-07-10 18:35:50,322 INFO L280 TraceCheckUtils]: 18: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-10 18:35:50,323 INFO L280 TraceCheckUtils]: 19: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,326 INFO L280 TraceCheckUtils]: 20: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,329 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:50,332 INFO L280 TraceCheckUtils]: 22: Hoare triple {1470#(= 1 |fmin_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1470#(= 1 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:50,332 INFO L280 TraceCheckUtils]: 23: Hoare triple {1470#(= 1 |fmin_float_#t~ret2|)} assume 0 == #t~ret2; {1415#false} is VALID [2020-07-10 18:35:50,333 INFO L280 TraceCheckUtils]: 24: Hoare triple {1415#false} havoc #t~ret2; {1415#false} is VALID [2020-07-10 18:35:50,333 INFO L280 TraceCheckUtils]: 25: Hoare triple {1415#false} #res := ~y; {1415#false} is VALID [2020-07-10 18:35:50,333 INFO L280 TraceCheckUtils]: 26: Hoare triple {1415#false} assume true; {1415#false} is VALID [2020-07-10 18:35:50,334 INFO L275 TraceCheckUtils]: 27: Hoare quadruple {1415#false} {1414#true} #135#return; {1415#false} is VALID [2020-07-10 18:35:50,336 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 [2020-07-10 18:35:50,337 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 [2020-07-10 18:35:50,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {1414#true} #valid := #valid[0 := 0]; {1414#true} is VALID [2020-07-10 18:35:50,337 INFO L280 TraceCheckUtils]: 3: Hoare triple {1414#true} assume 0 < #StackHeapBarrier; {1414#true} is VALID [2020-07-10 18:35:50,337 INFO L280 TraceCheckUtils]: 4: Hoare triple {1414#true} assume true; {1414#true} is VALID [2020-07-10 18:35:50,338 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1414#true} {1414#true} #143#return; {1414#true} is VALID [2020-07-10 18:35:50,338 INFO L263 TraceCheckUtils]: 6: Hoare triple {1414#true} call #t~ret10 := main(); {1414#true} is VALID [2020-07-10 18:35:50,338 INFO L280 TraceCheckUtils]: 7: Hoare triple {1414#true} ~x~0 := 0.0; {1414#true} is VALID [2020-07-10 18:35:50,339 INFO L280 TraceCheckUtils]: 8: Hoare triple {1414#true} ~y~0 := ~someUnaryFLOAToperation(0.0); {1414#true} is VALID [2020-07-10 18:35:50,340 INFO L263 TraceCheckUtils]: 9: Hoare triple {1414#true} call #t~ret7 := fmin_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 [2020-07-10 18:35:50,340 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 [2020-07-10 18:35:50,341 INFO L280 TraceCheckUtils]: 11: Hoare triple {1414#true} ~y := #in~y; {1414#true} is VALID [2020-07-10 18:35:50,342 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 [2020-07-10 18:35:50,342 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 [2020-07-10 18:35:50,343 INFO L280 TraceCheckUtils]: 14: Hoare triple {1414#true} havoc ~w~0; {1414#true} is VALID [2020-07-10 18:35:50,343 INFO L280 TraceCheckUtils]: 15: Hoare triple {1414#true} SUMMARY for call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.allocOnStack(4); srcloc: L15-2 {1414#true} is VALID [2020-07-10 18:35:50,343 INFO L280 TraceCheckUtils]: 16: Hoare triple {1414#true} SUMMARY for call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); srcloc: L16 {1414#true} is VALID [2020-07-10 18:35:50,344 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: L17 {1414#true} is VALID [2020-07-10 18:35:50,344 INFO L280 TraceCheckUtils]: 18: Hoare triple {1414#true} ~w~0 := #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,344 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: L18-1 {1414#true} is VALID [2020-07-10 18:35:50,344 INFO L280 TraceCheckUtils]: 20: Hoare triple {1414#true} havoc #t~union1; {1414#true} is VALID [2020-07-10 18:35:50,345 INFO L280 TraceCheckUtils]: 21: Hoare triple {1414#true} havoc #t~mem0; {1414#true} is VALID [2020-07-10 18:35:50,345 INFO L280 TraceCheckUtils]: 22: Hoare triple {1414#true} SUMMARY for call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); srcloc: L16-1 {1414#true} is VALID [2020-07-10 18:35:50,345 INFO L280 TraceCheckUtils]: 23: Hoare triple {1414#true} havoc ~#gf_u~0.base, ~#gf_u~0.offset; {1414#true} is VALID [2020-07-10 18:35:50,345 INFO L280 TraceCheckUtils]: 24: Hoare triple {1414#true} goto; {1414#true} is VALID [2020-07-10 18:35:50,346 INFO L280 TraceCheckUtils]: 25: Hoare triple {1414#true} assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); {1414#true} is VALID [2020-07-10 18:35:50,346 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 [2020-07-10 18:35:50,346 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 [2020-07-10 18:35:50,346 INFO L280 TraceCheckUtils]: 28: Hoare triple {1414#true} assume 2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296; {1414#true} is VALID [2020-07-10 18:35:50,347 INFO L280 TraceCheckUtils]: 29: Hoare triple {1414#true} #res := 1; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,348 INFO L280 TraceCheckUtils]: 30: Hoare triple {1471#(= 1 |__fpclassify_float_#res|)} assume true; {1471#(= 1 |__fpclassify_float_#res|)} is VALID [2020-07-10 18:35:50,349 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {1471#(= 1 |__fpclassify_float_#res|)} {1414#true} #139#return; {1470#(= 1 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:50,350 INFO L280 TraceCheckUtils]: 32: Hoare triple {1470#(= 1 |fmin_float_#t~ret2|)} assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; {1470#(= 1 |fmin_float_#t~ret2|)} is VALID [2020-07-10 18:35:50,351 INFO L280 TraceCheckUtils]: 33: Hoare triple {1470#(= 1 |fmin_float_#t~ret2|)} assume 0 == #t~ret2; {1415#false} is VALID [2020-07-10 18:35:50,351 INFO L280 TraceCheckUtils]: 34: Hoare triple {1415#false} havoc #t~ret2; {1415#false} is VALID [2020-07-10 18:35:50,351 INFO L280 TraceCheckUtils]: 35: Hoare triple {1415#false} #res := ~y; {1415#false} is VALID [2020-07-10 18:35:50,351 INFO L280 TraceCheckUtils]: 36: Hoare triple {1415#false} assume true; {1415#false} is VALID [2020-07-10 18:35:50,352 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {1415#false} {1414#true} #135#return; {1415#false} is VALID [2020-07-10 18:35:50,352 INFO L280 TraceCheckUtils]: 38: Hoare triple {1415#false} ~res~0 := #t~ret7; {1415#false} is VALID [2020-07-10 18:35:50,352 INFO L280 TraceCheckUtils]: 39: Hoare triple {1415#false} havoc #t~ret7; {1415#false} is VALID [2020-07-10 18:35:50,352 INFO L280 TraceCheckUtils]: 40: Hoare triple {1415#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); {1415#false} is VALID [2020-07-10 18:35:50,353 INFO L280 TraceCheckUtils]: 41: Hoare triple {1415#false} assume !#t~short9; {1415#false} is VALID [2020-07-10 18:35:50,353 INFO L280 TraceCheckUtils]: 42: Hoare triple {1415#false} assume !#t~short9; {1415#false} is VALID [2020-07-10 18:35:50,353 INFO L280 TraceCheckUtils]: 43: Hoare triple {1415#false} havoc #t~short9; {1415#false} is VALID [2020-07-10 18:35:50,353 INFO L280 TraceCheckUtils]: 44: Hoare triple {1415#false} havoc #t~ret8; {1415#false} is VALID [2020-07-10 18:35:50,353 INFO L280 TraceCheckUtils]: 45: Hoare triple {1415#false} assume !false; {1415#false} is VALID [2020-07-10 18:35:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:50,357 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:50,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832318809] [2020-07-10 18:35:50,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:50,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 18:35:50,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867914475] [2020-07-10 18:35:50,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-07-10 18:35:50,359 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:50,360 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 18:35:50,415 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:50,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 18:35:50,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:50,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 18:35:50,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 18:35:50,416 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 6 states. [2020-07-10 18:35:51,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,058 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2020-07-10 18:35:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 18:35:51,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-07-10 18:35:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:51,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 18:35:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-10 18:35:51,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 18:35:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2020-07-10 18:35:51,072 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 127 transitions. [2020-07-10 18:35:51,221 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 127 edges. 127 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:51,226 INFO L225 Difference]: With dead ends: 121 [2020-07-10 18:35:51,227 INFO L226 Difference]: Without dead ends: 90 [2020-07-10 18:35:51,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-10 18:35:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-07-10 18:35:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 85. [2020-07-10 18:35:51,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:51,302 INFO L82 GeneralOperation]: Start isEquivalent. First operand 90 states. Second operand 85 states. [2020-07-10 18:35:51,302 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 85 states. [2020-07-10 18:35:51,302 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 85 states. [2020-07-10 18:35:51,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,308 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-07-10 18:35:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2020-07-10 18:35:51,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:51,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:51,309 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 90 states. [2020-07-10 18:35:51,309 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 90 states. [2020-07-10 18:35:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:51,314 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2020-07-10 18:35:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 100 transitions. [2020-07-10 18:35:51,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:51,315 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:51,315 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:51,315 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-10 18:35:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-07-10 18:35:51,323 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 46 [2020-07-10 18:35:51,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:51,324 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-07-10 18:35:51,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 18:35:51,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 85 states and 94 transitions. [2020-07-10 18:35:51,443 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-07-10 18:35:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-10 18:35:51,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:51,445 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] [2020-07-10 18:35:51,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 18:35:51,446 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:51,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:51,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1331564627, now seen corresponding path program 1 times [2020-07-10 18:35:51,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:51,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208800085] [2020-07-10 18:35:51,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:51,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-10 18:35:51,723 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1139) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1004) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:407) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:381) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:390) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:349) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 18:35:51,730 INFO L168 Benchmark]: Toolchain (without parser) took 5935.13 ms. Allocated memory was 142.1 MB in the beginning and 289.4 MB in the end (delta: 147.3 MB). Free memory was 101.9 MB in the beginning and 242.3 MB in the end (delta: -140.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:51,731 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 18:35:51,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.80 ms. Allocated memory is still 142.1 MB. Free memory was 101.7 MB in the beginning and 90.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:51,732 INFO L168 Benchmark]: Boogie Preprocessor took 140.76 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 90.1 MB in the beginning and 179.2 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:51,733 INFO L168 Benchmark]: RCFGBuilder took 649.76 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 140.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:51,734 INFO L168 Benchmark]: TraceAbstraction took 4820.08 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 140.8 MB in the beginning and 242.3 MB in the end (delta: -101.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 18:35:51,738 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.80 ms. Allocated memory is still 142.1 MB. Free memory was 101.7 MB in the beginning and 90.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.76 ms. Allocated memory was 142.1 MB in the beginning and 201.9 MB in the end (delta: 59.8 MB). Free memory was 90.1 MB in the beginning and 179.2 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 649.76 ms. Allocated memory is still 201.9 MB. Free memory was 178.5 MB in the beginning and 140.8 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4820.08 ms. Allocated memory was 201.9 MB in the beginning and 289.4 MB in the end (delta: 87.6 MB). Free memory was 140.8 MB in the beginning and 242.3 MB in the end (delta: -101.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...