/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:05:00,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:05:00,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:05:00,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:05:00,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:05:00,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:05:00,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:05:00,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:05:00,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:05:00,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:05:00,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:05:00,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:05:00,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:05:00,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:05:00,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:05:00,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:05:00,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:05:00,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:05:00,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:05:00,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:05:00,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:05:00,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:05:00,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:05:00,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:05:00,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:05:00,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:05:00,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:05:00,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:05:00,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:05:00,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:05:00,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:05:00,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:05:00,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:05:00,884 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:05:00,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:05:00,885 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:05:00,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:05:00,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:05:00,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:05:00,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:05:00,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:05:00,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:05:00,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:05:00,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:05:00,888 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:05:00,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:05:00,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:05:00,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:05:00,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:05:00,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:05:00,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:05:00,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:05:00,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:05:00,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:05:00,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:05:00,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:05:00,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:05:00,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:05:00,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:05:01,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:05:01,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:05:01,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:05:01,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:05:01,227 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:05:01,228 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-17 22:05:01,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8e283a8/f868aafbc187493997222c930bdb47d5/FLAG4a2e2a5cd [2020-07-17 22:05:01,801 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:05:01,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-17 22:05:01,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8e283a8/f868aafbc187493997222c930bdb47d5/FLAG4a2e2a5cd [2020-07-17 22:05:02,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c8e283a8/f868aafbc187493997222c930bdb47d5 [2020-07-17 22:05:02,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:05:02,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:05:02,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:02,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:05:02,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:05:02,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c06c45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02, skipping insertion in model container [2020-07-17 22:05:02,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:05:02,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:05:02,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:02,433 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:05:02,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:05:02,501 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:05:02,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02 WrapperNode [2020-07-17 22:05:02,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:05:02,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:05:02,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:05:02,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:05:02,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (1/1) ... [2020-07-17 22:05:02,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:05:02,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:05:02,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:05:02,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:05:02,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (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 [2020-07-17 22:05:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:05:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:05:02,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-17 22:05:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-17 22:05:02,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:05:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:05:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-17 22:05:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-17 22:05:02,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 22:05:02,724 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-17 22:05:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:05:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:05:02,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:05:03,331 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:05:03,332 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-17 22:05:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:03 BoogieIcfgContainer [2020-07-17 22:05:03,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:05:03,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:05:03,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:05:03,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:05:03,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:05:02" (1/3) ... [2020-07-17 22:05:03,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8f7c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:03, skipping insertion in model container [2020-07-17 22:05:03,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:05:02" (2/3) ... [2020-07-17 22:05:03,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8f7c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:05:03, skipping insertion in model container [2020-07-17 22:05:03,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:05:03" (3/3) ... [2020-07-17 22:05:03,354 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-07-17 22:05:03,368 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:05:03,376 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:05:03,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:05:03,418 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:05:03,418 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:05:03,418 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:05:03,419 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:05:03,419 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:05:03,419 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:05:03,419 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:05:03,420 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:05:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-07-17 22:05:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-17 22:05:03,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:03,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:03,445 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:03,451 INFO L82 PathProgramCache]: Analyzing trace with hash 380065484, now seen corresponding path program 1 times [2020-07-17 22:05:03,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:03,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934184597] [2020-07-17 22:05:03,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:03,704 INFO L280 TraceCheckUtils]: 0: Hoare triple {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-30; {53#true} is VALID [2020-07-17 22:05:03,704 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#true} assume true; {53#true} is VALID [2020-07-17 22:05:03,705 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {53#true} {53#true} #149#return; {53#true} is VALID [2020-07-17 22:05:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:05:03,750 INFO L280 TraceCheckUtils]: 0: Hoare triple {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~z~0;havoc ~r~0;havoc ~hx~0;havoc ~ix~0;havoc ~s~0;havoc ~q~0;havoc ~m~0;havoc ~t~0;havoc ~i~0; {53#true} is VALID [2020-07-17 22:05:03,752 INFO L280 TraceCheckUtils]: 1: Hoare triple {53#true} assume !true; {54#false} is VALID [2020-07-17 22:05:03,752 INFO L280 TraceCheckUtils]: 2: Hoare triple {54#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {54#false} is VALID [2020-07-17 22:05:03,753 INFO L280 TraceCheckUtils]: 3: Hoare triple {54#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {54#false} is VALID [2020-07-17 22:05:03,753 INFO L280 TraceCheckUtils]: 4: Hoare triple {54#false} assume true; {54#false} is VALID [2020-07-17 22:05:03,753 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {54#false} {53#true} #145#return; {54#false} is VALID [2020-07-17 22:05:03,756 INFO L263 TraceCheckUtils]: 0: Hoare triple {53#true} call ULTIMATE.init(); {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} is VALID [2020-07-17 22:05:03,756 INFO L280 TraceCheckUtils]: 1: Hoare triple {64#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-30; {53#true} is VALID [2020-07-17 22:05:03,757 INFO L280 TraceCheckUtils]: 2: Hoare triple {53#true} assume true; {53#true} is VALID [2020-07-17 22:05:03,757 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {53#true} {53#true} #149#return; {53#true} is VALID [2020-07-17 22:05:03,758 INFO L263 TraceCheckUtils]: 4: Hoare triple {53#true} call #t~ret10 := main(); {53#true} is VALID [2020-07-17 22:05:03,758 INFO L280 TraceCheckUtils]: 5: Hoare triple {53#true} ~x~0 := 0.0; {53#true} is VALID [2020-07-17 22:05:03,760 INFO L263 TraceCheckUtils]: 6: Hoare triple {53#true} call #t~ret7 := __ieee754_sqrtf(~x~0); {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-17 22:05:03,760 INFO L280 TraceCheckUtils]: 7: Hoare triple {65#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~z~0;havoc ~r~0;havoc ~hx~0;havoc ~ix~0;havoc ~s~0;havoc ~q~0;havoc ~m~0;havoc ~t~0;havoc ~i~0; {53#true} is VALID [2020-07-17 22:05:03,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {53#true} assume !true; {54#false} is VALID [2020-07-17 22:05:03,762 INFO L280 TraceCheckUtils]: 9: Hoare triple {54#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {54#false} is VALID [2020-07-17 22:05:03,762 INFO L280 TraceCheckUtils]: 10: Hoare triple {54#false} assume !(~hx~0 % 4294967296 < 2139095040);#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {54#false} is VALID [2020-07-17 22:05:03,763 INFO L280 TraceCheckUtils]: 11: Hoare triple {54#false} assume true; {54#false} is VALID [2020-07-17 22:05:03,763 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {54#false} {53#true} #145#return; {54#false} is VALID [2020-07-17 22:05:03,764 INFO L280 TraceCheckUtils]: 13: Hoare triple {54#false} ~res~0 := #t~ret7;havoc #t~ret7;#t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {54#false} is VALID [2020-07-17 22:05:03,764 INFO L280 TraceCheckUtils]: 14: Hoare triple {54#false} assume !#t~short9; {54#false} is VALID [2020-07-17 22:05:03,764 INFO L280 TraceCheckUtils]: 15: Hoare triple {54#false} assume !#t~short9;havoc #t~short9;havoc #t~ret8; {54#false} is VALID [2020-07-17 22:05:03,765 INFO L280 TraceCheckUtils]: 16: Hoare triple {54#false} assume !false; {54#false} is VALID [2020-07-17 22:05:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:05:03,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934184597] [2020-07-17 22:05:03,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:05:03,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 22:05:03,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802078163] [2020-07-17 22:05:03,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:05:03,780 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:05:03,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-17 22:05:03,829 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:03,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 22:05:03,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:05:03,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 22:05:03,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 22:05:03,842 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2020-07-17 22:05:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:04,412 INFO L93 Difference]: Finished difference Result 92 states and 133 transitions. [2020-07-17 22:05:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 22:05:04,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-17 22:05:04,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:05:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2020-07-17 22:05:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-17 22:05:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2020-07-17 22:05:04,436 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 133 transitions. [2020-07-17 22:05:04,665 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 133 edges. 133 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:05:04,680 INFO L225 Difference]: With dead ends: 92 [2020-07-17 22:05:04,680 INFO L226 Difference]: Without dead ends: 46 [2020-07-17 22:05:04,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 22:05:04,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-07-17 22:05:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-07-17 22:05:04,789 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:05:04,789 INFO L82 GeneralOperation]: Start isEquivalent. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:04,790 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:04,791 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:04,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:04,811 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-17 22:05:04,812 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:04,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:04,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:04,815 INFO L74 IsIncluded]: Start isIncluded. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:04,816 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 46 states. [2020-07-17 22:05:04,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:05:04,825 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2020-07-17 22:05:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:04,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:05:04,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:05:04,828 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:05:04,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:05:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-07-17 22:05:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2020-07-17 22:05:04,840 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 17 [2020-07-17 22:05:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:05:04,841 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2020-07-17 22:05:04,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 22:05:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-07-17 22:05:04,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-17 22:05:04,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:05:04,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:05:04,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:05:04,851 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:05:04,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:05:04,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2048303218, now seen corresponding path program 1 times [2020-07-17 22:05:04,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:05:04,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664896333] [2020-07-17 22:05:04,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:05:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 22:05:05,046 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 22:05:05,047 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 22:05:05,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:05:05,082 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-17 22:05:05,082 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:05,082 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-17 22:05:05,082 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: __ieee754_sqrtfENTRY has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: __signbit_floatENTRY has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-17 22:05:05,083 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: L102 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-17 22:05:05,084 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: L102-1 has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-17 22:05:05,085 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:05,086 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: __signbit_floatFINAL has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: L105-1 has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: L105-4 has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: L105-4 has no Hoare annotation [2020-07-17 22:05:05,087 WARN L170 areAnnotationChecker]: __ieee754_sqrtfFINAL has no Hoare annotation [2020-07-17 22:05:05,088 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:05,088 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-17 22:05:05,088 WARN L170 areAnnotationChecker]: __signbit_floatEXIT has no Hoare annotation [2020-07-17 22:05:05,088 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-17 22:05:05,088 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: __ieee754_sqrtfEXIT has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-17 22:05:05,089 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-17 22:05:05,090 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-17 22:05:05,091 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:05,092 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:05,092 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-17 22:05:05,092 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-17 22:05:05,092 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-17 22:05:05,092 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-17 22:05:05,093 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-17 22:05:05,094 WARN L170 areAnnotationChecker]: L73-3 has no Hoare annotation [2020-07-17 22:05:05,095 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. [2020-07-17 22:05:05,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:05:05 BoogieIcfgContainer [2020-07-17 22:05:05,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:05:05,102 INFO L168 Benchmark]: Toolchain (without parser) took 2941.10 ms. Allocated memory was 140.0 MB in the beginning and 234.9 MB in the end (delta: 94.9 MB). Free memory was 104.5 MB in the beginning and 104.5 MB in the end (delta: 4.2 kB). Peak memory consumption was 94.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:05,103 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 140.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 22:05:05,104 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.23 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 104.5 MB in the beginning and 181.0 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:05,105 INFO L168 Benchmark]: Boogie Preprocessor took 62.72 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 179.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:05,106 INFO L168 Benchmark]: RCFGBuilder took 684.87 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 142.7 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:05,107 INFO L168 Benchmark]: TraceAbstraction took 1754.36 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 142.7 MB in the beginning and 106.2 MB in the end (delta: 36.6 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2020-07-17 22:05:05,114 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 0.65 ms. Allocated memory is still 140.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 424.23 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 104.5 MB in the beginning and 181.0 MB in the end (delta: -76.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.72 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 179.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 684.87 ms. Allocated memory is still 202.4 MB. Free memory was 179.1 MB in the beginning and 142.7 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1754.36 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 142.7 MB in the beginning and 106.2 MB in the end (delta: 36.6 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=8589934597, \old(tiny_sqrt)=8589934596, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [\old(x)=0, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [\old(x)=0, hx=2139095040, ix=-1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=8589934592, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, res=8589934592, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=8589934592, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 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: 55 SDtfs, 50 SDslu, 5 SDs, 0 SdLazy, 60 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...