/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_1011b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:13:31,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:13:31,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:13:31,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:13:31,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:13:31,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:13:31,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:13:31,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:13:31,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:13:31,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:13:31,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:13:31,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:13:31,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:13:31,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:13:31,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:13:31,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:13:31,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:13:31,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:13:31,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:13:31,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:13:31,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:13:31,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:13:31,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:13:31,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:13:31,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:13:31,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:13:31,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:13:31,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:13:31,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:13:31,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:13:31,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:13:31,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:13:31,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:13:31,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:13:31,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:13:31,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:13:31,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:13:31,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:13:31,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:13:31,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:13:31,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:13:31,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:13:31,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:13:31,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:13:31,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:13:31,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:13:31,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:13:31,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:13:31,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:13:31,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:13:31,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:13:31,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:13:31,594 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:13:31,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:13:31,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:13:31,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:31,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:13:31,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:13:31,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:13:31,595 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:13:31,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:13:31,933 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:13:31,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:13:31,938 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:13:31,939 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:13:31,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1011b.c [2020-07-18 00:13:32,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f685b4335/ac9805e2a6d941c3ad3f626454b1d3cb/FLAGb6f15a02e [2020-07-18 00:13:32,462 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:13:32,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1011b.c [2020-07-18 00:13:32,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f685b4335/ac9805e2a6d941c3ad3f626454b1d3cb/FLAGb6f15a02e [2020-07-18 00:13:32,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f685b4335/ac9805e2a6d941c3ad3f626454b1d3cb [2020-07-18 00:13:32,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:32,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:32,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:32,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:32,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:32,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:32" (1/1) ... [2020-07-18 00:13:32,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91b316b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:32, skipping insertion in model container [2020-07-18 00:13:32,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:32" (1/1) ... [2020-07-18 00:13:32,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:32,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:33,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:33,118 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:33,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:33,170 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:33,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33 WrapperNode [2020-07-18 00:13:33,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:33,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:33,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:33,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:33,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... [2020-07-18 00:13:33,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:33,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:33,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:33,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:33,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-07-18 00:13:33,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-18 00:13:33,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-18 00:13:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-07-18 00:13:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:33,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:33,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:33,915 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-18 00:13:33,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:33 BoogieIcfgContainer [2020-07-18 00:13:33,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:33,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:33,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:33,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:33,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:32" (1/3) ... [2020-07-18 00:13:33,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc04c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:33, skipping insertion in model container [2020-07-18 00:13:33,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:33" (2/3) ... [2020-07-18 00:13:33,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc04c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:33, skipping insertion in model container [2020-07-18 00:13:33,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:33" (3/3) ... [2020-07-18 00:13:33,928 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b.c [2020-07-18 00:13:33,939 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:33,948 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:33,962 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:33,985 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:33,985 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:33,985 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:33,985 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:33,986 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:33,987 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:33,987 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:33,987 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:34,004 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2020-07-18 00:13:34,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-18 00:13:34,014 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:34,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:34,015 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:34,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:34,021 INFO L82 PathProgramCache]: Analyzing trace with hash 461788748, now seen corresponding path program 1 times [2020-07-18 00:13:34,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:34,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [287103591] [2020-07-18 00:13:34,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:34,236 INFO L280 TraceCheckUtils]: 0: Hoare triple {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {72#true} is VALID [2020-07-18 00:13:34,237 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#true} #valid := #valid[0 := 0]; {72#true} is VALID [2020-07-18 00:13:34,238 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} assume 0 < #StackHeapBarrier; {72#true} is VALID [2020-07-18 00:13:34,238 INFO L280 TraceCheckUtils]: 3: Hoare triple {72#true} assume true; {72#true} is VALID [2020-07-18 00:13:34,239 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {72#true} {72#true} #106#return; {72#true} is VALID [2020-07-18 00:13:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:34,279 INFO L280 TraceCheckUtils]: 0: Hoare triple {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {72#true} is VALID [2020-07-18 00:13:34,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#true} havoc ~ix~0; {72#true} is VALID [2020-07-18 00:13:34,281 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} assume !true; {73#false} is VALID [2020-07-18 00:13:34,282 INFO L280 TraceCheckUtils]: 3: Hoare triple {73#false} assume !true; {73#false} is VALID [2020-07-18 00:13:34,282 INFO L280 TraceCheckUtils]: 4: Hoare triple {73#false} #res := ~x; {73#false} is VALID [2020-07-18 00:13:34,283 INFO L280 TraceCheckUtils]: 5: Hoare triple {73#false} assume true; {73#false} is VALID [2020-07-18 00:13:34,283 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {73#false} {72#true} #102#return; {73#false} is VALID [2020-07-18 00:13:34,285 INFO L263 TraceCheckUtils]: 0: Hoare triple {72#true} call ULTIMATE.init(); {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 00:13:34,286 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {72#true} is VALID [2020-07-18 00:13:34,286 INFO L280 TraceCheckUtils]: 2: Hoare triple {72#true} #valid := #valid[0 := 0]; {72#true} is VALID [2020-07-18 00:13:34,287 INFO L280 TraceCheckUtils]: 3: Hoare triple {72#true} assume 0 < #StackHeapBarrier; {72#true} is VALID [2020-07-18 00:13:34,287 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#true} assume true; {72#true} is VALID [2020-07-18 00:13:34,288 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {72#true} {72#true} #106#return; {72#true} is VALID [2020-07-18 00:13:34,288 INFO L263 TraceCheckUtils]: 6: Hoare triple {72#true} call #t~ret9 := main(); {72#true} is VALID [2020-07-18 00:13:34,289 INFO L280 TraceCheckUtils]: 7: Hoare triple {72#true} ~x~0 := ~someUnaryFLOAToperation(0.0); {72#true} is VALID [2020-07-18 00:13:34,291 INFO L263 TraceCheckUtils]: 8: Hoare triple {72#true} call #t~ret6 := fabs_float(~x~0); {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:34,292 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {72#true} is VALID [2020-07-18 00:13:34,292 INFO L280 TraceCheckUtils]: 10: Hoare triple {72#true} havoc ~ix~0; {72#true} is VALID [2020-07-18 00:13:34,293 INFO L280 TraceCheckUtils]: 11: Hoare triple {72#true} assume !true; {73#false} is VALID [2020-07-18 00:13:34,294 INFO L280 TraceCheckUtils]: 12: Hoare triple {73#false} assume !true; {73#false} is VALID [2020-07-18 00:13:34,294 INFO L280 TraceCheckUtils]: 13: Hoare triple {73#false} #res := ~x; {73#false} is VALID [2020-07-18 00:13:34,295 INFO L280 TraceCheckUtils]: 14: Hoare triple {73#false} assume true; {73#false} is VALID [2020-07-18 00:13:34,295 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {73#false} {72#true} #102#return; {73#false} is VALID [2020-07-18 00:13:34,295 INFO L280 TraceCheckUtils]: 16: Hoare triple {73#false} ~res~0 := #t~ret6; {73#false} is VALID [2020-07-18 00:13:34,296 INFO L280 TraceCheckUtils]: 17: Hoare triple {73#false} havoc #t~ret6; {73#false} is VALID [2020-07-18 00:13:34,296 INFO L280 TraceCheckUtils]: 18: Hoare triple {73#false} #t~short8 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {73#false} is VALID [2020-07-18 00:13:34,297 INFO L280 TraceCheckUtils]: 19: Hoare triple {73#false} assume !#t~short8; {73#false} is VALID [2020-07-18 00:13:34,297 INFO L280 TraceCheckUtils]: 20: Hoare triple {73#false} assume !#t~short8; {73#false} is VALID [2020-07-18 00:13:34,298 INFO L280 TraceCheckUtils]: 21: Hoare triple {73#false} havoc #t~ret7; {73#false} is VALID [2020-07-18 00:13:34,298 INFO L280 TraceCheckUtils]: 22: Hoare triple {73#false} havoc #t~short8; {73#false} is VALID [2020-07-18 00:13:34,298 INFO L280 TraceCheckUtils]: 23: Hoare triple {73#false} assume !false; {73#false} is VALID [2020-07-18 00:13:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:34,305 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:34,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [287103591] [2020-07-18 00:13:34,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:34,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:13:34,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528475398] [2020-07-18 00:13:34,317 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 00:13:34,321 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:34,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:13:34,376 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:34,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:13:34,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:34,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:13:34,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:13:34,390 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 4 states. [2020-07-18 00:13:34,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:34,946 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2020-07-18 00:13:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:13:34,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-07-18 00:13:34,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-18 00:13:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2020-07-18 00:13:34,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 141 transitions. [2020-07-18 00:13:35,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:35,182 INFO L225 Difference]: With dead ends: 126 [2020-07-18 00:13:35,182 INFO L226 Difference]: Without dead ends: 61 [2020-07-18 00:13:35,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:13:35,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-18 00:13:35,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-07-18 00:13:35,310 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:35,311 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 61 states. [2020-07-18 00:13:35,312 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-18 00:13:35,312 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-18 00:13:35,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:35,322 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-07-18 00:13:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 00:13:35,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:35,326 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:35,326 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 61 states. [2020-07-18 00:13:35,326 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 61 states. [2020-07-18 00:13:35,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:35,341 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2020-07-18 00:13:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 00:13:35,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:35,344 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:35,345 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:35,345 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-18 00:13:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2020-07-18 00:13:35,358 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 24 [2020-07-18 00:13:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:35,359 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2020-07-18 00:13:35,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:13:35,364 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 61 states and 61 transitions. [2020-07-18 00:13:35,460 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2020-07-18 00:13:35,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-18 00:13:35,463 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:35,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:35,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:35,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:35,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1177663505, now seen corresponding path program 1 times [2020-07-18 00:13:35,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:35,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453264833] [2020-07-18 00:13:35,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:35,611 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:35,612 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 00:13:35,613 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 00:13:35,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:13:35,639 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 00:13:35,640 WARN L170 areAnnotationChecker]: fabs_floatENTRY has no Hoare annotation [2020-07-18 00:13:35,640 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:35,640 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:35,640 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 00:13:35,641 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 00:13:35,642 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-18 00:13:35,643 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: L30-3 has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-18 00:13:35,644 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-18 00:13:35,645 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: fabs_floatFINAL has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-18 00:13:35,646 WARN L170 areAnnotationChecker]: L17-1 has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: fabs_floatEXIT has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2020-07-18 00:13:35,647 WARN L170 areAnnotationChecker]: L49-6 has no Hoare annotation [2020-07-18 00:13:35,648 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-18 00:13:35,648 WARN L170 areAnnotationChecker]: L49-3 has no Hoare annotation [2020-07-18 00:13:35,648 WARN L170 areAnnotationChecker]: L17-2 has no Hoare annotation [2020-07-18 00:13:35,648 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2020-07-18 00:13:35,648 WARN L170 areAnnotationChecker]: L49-7 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L49-9 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L33-2 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L17-3 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L22-2 has no Hoare annotation [2020-07-18 00:13:35,649 WARN L170 areAnnotationChecker]: L49-8 has no Hoare annotation [2020-07-18 00:13:35,650 WARN L170 areAnnotationChecker]: L49-10 has no Hoare annotation [2020-07-18 00:13:35,650 WARN L170 areAnnotationChecker]: L33-3 has no Hoare annotation [2020-07-18 00:13:35,650 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-18 00:13:35,650 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-18 00:13:35,650 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L54 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L31-1 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-18 00:13:35,651 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-18 00:13:35,652 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 00:13:35,652 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation [2020-07-18 00:13:35,652 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-18 00:13:35,652 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-18 00:13:35,652 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-18 00:13:35,653 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 00:13:35,653 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-18 00:13:35,653 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-18 00:13:35,653 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 00:13:35,653 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 00:13:35,653 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:13:35,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:13:35 BoogieIcfgContainer [2020-07-18 00:13:35,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:13:35,662 INFO L168 Benchmark]: Toolchain (without parser) took 2779.05 ms. Allocated memory was 146.3 MB in the beginning and 235.4 MB in the end (delta: 89.1 MB). Free memory was 104.4 MB in the beginning and 105.2 MB in the end (delta: -752.4 kB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,663 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.97 ms. Allocated memory is still 146.3 MB. Free memory was 104.2 MB in the beginning and 93.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,665 INFO L168 Benchmark]: Boogie Preprocessor took 170.83 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,665 INFO L168 Benchmark]: RCFGBuilder took 577.03 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 150.6 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,666 INFO L168 Benchmark]: TraceAbstraction took 1737.00 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 149.9 MB in the beginning and 105.2 MB in the end (delta: 44.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:35,670 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 146.3 MB. Free memory was 122.8 MB in the beginning and 122.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 286.97 ms. Allocated memory is still 146.3 MB. Free memory was 104.2 MB in the beginning and 93.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.83 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 93.3 MB in the beginning and 181.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 577.03 ms. Allocated memory is still 203.9 MB. Free memory was 180.6 MB in the beginning and 150.6 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1737.00 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 149.9 MB in the beginning and 105.2 MB in the end (delta: 44.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 50]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 49, overapproximation of someUnaryFLOAToperation at line 45, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L45] float x = -0.0f; [L46] CALL, EXPR fabs_float(x) [L13] __uint32_t ix; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type sf_u; [L21] sf_u.word = (ix & 0x7fffffff) [L22] EXPR sf_u.value [L22] (x) = sf_u.value [L24] return x; [L46] RET, EXPR fabs_float(x) [L46] float res = fabs_float(x); [L49] EXPR res == 0.0f && __signbit_float(res) == 0 [L49] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L50] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 65 SDtfs, 11 SDslu, 45 SDs, 0 SdLazy, 75 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...