/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/double_req_bl_1032b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:39:37,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:39:37,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:39:37,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:39:37,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:39:37,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:39:37,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:39:37,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:39:37,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:39:37,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:39:37,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:39:37,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:39:37,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:39:37,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:39:37,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:39:37,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:39:37,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:39:37,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:39:37,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:39:37,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:39:37,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:39:37,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:39:37,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:39:37,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:39:37,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 14:39:37,333 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 [2020-07-10 14:39:37,348 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:39:37,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:39:37,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:39:37,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:39:37,350 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:39:37,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:39:37,351 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:39:37,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:39:37,351 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:39:37,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:39:37,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:39:37,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:39:37,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:39:37,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:39:37,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:39:37,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:39:37,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:39:37,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:39:37,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:39:37,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:39:37,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:39:37,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:39:37,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:39:37,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:39:37,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:39:37,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:39:37,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:39:37,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:39:37,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:39:37,695 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:39:37,696 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032b.c [2020-07-10 14:39:37,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a636c4b9/dd6b12ed16554a84bd4421362047ea85/FLAG346663d35 [2020-07-10 14:39:38,310 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:39:38,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032b.c [2020-07-10 14:39:38,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a636c4b9/dd6b12ed16554a84bd4421362047ea85/FLAG346663d35 [2020-07-10 14:39:38,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a636c4b9/dd6b12ed16554a84bd4421362047ea85 [2020-07-10 14:39:38,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:39:38,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:39:38,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:39:38,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:39:38,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:39:38,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:39:38" (1/1) ... [2020-07-10 14:39:38,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306a7df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:38, skipping insertion in model container [2020-07-10 14:39:38,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:39:38" (1/1) ... [2020-07-10 14:39:38,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:39:38,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:39:38,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:39:38,949 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:39:39,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:39:39,120 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:39:39,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39 WrapperNode [2020-07-10 14:39:39,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:39:39,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:39:39,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:39:39,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:39:39,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... [2020-07-10 14:39:39,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:39:39,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:39:39,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:39:39,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:39:39,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:39:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:39:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:39:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-10 14:39:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2020-07-10 14:39:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-10 14:39:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:39:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:39:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-10 14:39:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2020-07-10 14:39:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 14:39:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 14:39:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 14:39:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 14:39:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 14:39:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 14:39:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-10 14:39:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:39:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:39:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:39:39,847 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:39:39,848 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 14:39:39,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:39:39 BoogieIcfgContainer [2020-07-10 14:39:39,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:39:39,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:39:39,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:39:39,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:39:39,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:39:38" (1/3) ... [2020-07-10 14:39:39,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa69e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:39:39, skipping insertion in model container [2020-07-10 14:39:39,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:39:39" (2/3) ... [2020-07-10 14:39:39,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa69e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:39:39, skipping insertion in model container [2020-07-10 14:39:39,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:39:39" (3/3) ... [2020-07-10 14:39:39,862 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032b.c [2020-07-10 14:39:39,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:39:39,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:39:39,898 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:39:39,924 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:39:39,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:39:39,924 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:39:39,925 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:39:39,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:39:39,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:39:39,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:39:39,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:39:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-07-10 14:39:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-10 14:39:39,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:39:39,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:39:39,956 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:39:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:39:39,964 INFO L82 PathProgramCache]: Analyzing trace with hash -597726452, now seen corresponding path program 1 times [2020-07-10 14:39:39,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:39:39,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031763030] [2020-07-10 14:39:39,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:39:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:39:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:39:40,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {46#true} is VALID [2020-07-10 14:39:40,173 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-10 14:39:40,174 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-10 14:39:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 14:39:40,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~msw~0;havoc ~exponent_less_1023~0;havoc ~lsw~0; {46#true} is VALID [2020-07-10 14:39:40,212 INFO L280 TraceCheckUtils]: 1: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-10 14:39:40,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {47#false} ~exponent_less_1023~0 := ~bitwiseAnd(~msw~0, 2146435072) / 1048576 - 1023; {47#false} is VALID [2020-07-10 14:39:40,213 INFO L280 TraceCheckUtils]: 3: Hoare triple {47#false} assume ~exponent_less_1023~0 < 20; {47#false} is VALID [2020-07-10 14:39:40,214 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#false} assume !(~exponent_less_1023~0 < 0);~exponent_mask~0 := ~shiftRight(1048575, ~exponent_less_1023~0); {47#false} is VALID [2020-07-10 14:39:40,214 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#false} assume 0 == ~bitwiseAnd(~msw~0, ~exponent_mask~0) % 4294967296 && 0 == ~lsw~0 % 4294967296;#res := ~x; {47#false} is VALID [2020-07-10 14:39:40,215 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-10 14:39:40,215 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {47#false} {46#true} #110#return; {47#false} is VALID [2020-07-10 14:39:40,217 INFO L263 TraceCheckUtils]: 0: Hoare triple {46#true} call ULTIMATE.init(); {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 14:39:40,218 INFO L280 TraceCheckUtils]: 1: Hoare triple {59#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {46#true} is VALID [2020-07-10 14:39:40,218 INFO L280 TraceCheckUtils]: 2: Hoare triple {46#true} assume true; {46#true} is VALID [2020-07-10 14:39:40,219 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {46#true} {46#true} #114#return; {46#true} is VALID [2020-07-10 14:39:40,219 INFO L263 TraceCheckUtils]: 4: Hoare triple {46#true} call #t~ret11 := main(); {46#true} is VALID [2020-07-10 14:39:40,219 INFO L280 TraceCheckUtils]: 5: Hoare triple {46#true} ~x~0 := ~someUnaryDOUBLEoperation(0.0); {46#true} is VALID [2020-07-10 14:39:40,221 INFO L263 TraceCheckUtils]: 6: Hoare triple {46#true} call #t~ret8 := round_double(~x~0); {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 14:39:40,222 INFO L280 TraceCheckUtils]: 7: Hoare triple {60#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x;havoc ~msw~0;havoc ~exponent_less_1023~0;havoc ~lsw~0; {46#true} is VALID [2020-07-10 14:39:40,223 INFO L280 TraceCheckUtils]: 8: Hoare triple {46#true} assume !true; {47#false} is VALID [2020-07-10 14:39:40,223 INFO L280 TraceCheckUtils]: 9: Hoare triple {47#false} ~exponent_less_1023~0 := ~bitwiseAnd(~msw~0, 2146435072) / 1048576 - 1023; {47#false} is VALID [2020-07-10 14:39:40,224 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#false} assume ~exponent_less_1023~0 < 20; {47#false} is VALID [2020-07-10 14:39:40,224 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#false} assume !(~exponent_less_1023~0 < 0);~exponent_mask~0 := ~shiftRight(1048575, ~exponent_less_1023~0); {47#false} is VALID [2020-07-10 14:39:40,224 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#false} assume 0 == ~bitwiseAnd(~msw~0, ~exponent_mask~0) % 4294967296 && 0 == ~lsw~0 % 4294967296;#res := ~x; {47#false} is VALID [2020-07-10 14:39:40,225 INFO L280 TraceCheckUtils]: 13: Hoare triple {47#false} assume true; {47#false} is VALID [2020-07-10 14:39:40,225 INFO L275 TraceCheckUtils]: 14: Hoare quadruple {47#false} {46#true} #110#return; {47#false} is VALID [2020-07-10 14:39:40,226 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#false} ~res~0 := #t~ret8;havoc #t~ret8;#t~short10 := ~someBinaryDOUBLEComparisonOperation(~res~0, ~someUnaryDOUBLEoperation(0.0)); {47#false} is VALID [2020-07-10 14:39:40,226 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#false} assume !#t~short10; {47#false} is VALID [2020-07-10 14:39:40,227 INFO L280 TraceCheckUtils]: 17: Hoare triple {47#false} assume !#t~short10;havoc #t~short10;havoc #t~ret9; {47#false} is VALID [2020-07-10 14:39:40,227 INFO L280 TraceCheckUtils]: 18: Hoare triple {47#false} assume !false; {47#false} is VALID [2020-07-10 14:39:40,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 14:39:40,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031763030] [2020-07-10 14:39:40,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 14:39:40,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 14:39:40,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63243683] [2020-07-10 14:39:40,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-10 14:39:40,247 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 14:39:40,252 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 14:39:40,289 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:39:40,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 14:39:40,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 14:39:40,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 14:39:40,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 14:39:40,303 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 4 states. [2020-07-10 14:39:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:39:40,776 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2020-07-10 14:39:40,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 14:39:40,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-10 14:39:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 14:39:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:39:40,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2020-07-10 14:39:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 14:39:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2020-07-10 14:39:40,799 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 109 transitions. [2020-07-10 14:39:40,965 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 109 edges. 109 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 14:39:40,980 INFO L225 Difference]: With dead ends: 78 [2020-07-10 14:39:40,981 INFO L226 Difference]: Without dead ends: 39 [2020-07-10 14:39:40,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 14:39:41,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-10 14:39:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-10 14:39:41,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 14:39:41,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 39 states. [2020-07-10 14:39:41,047 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-10 14:39:41,047 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-10 14:39:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:39:41,053 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-07-10 14:39:41,053 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-07-10 14:39:41,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:39:41,054 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:39:41,055 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 39 states. [2020-07-10 14:39:41,055 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 39 states. [2020-07-10 14:39:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 14:39:41,060 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-07-10 14:39:41,061 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-07-10 14:39:41,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 14:39:41,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 14:39:41,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 14:39:41,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 14:39:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-10 14:39:41,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2020-07-10 14:39:41,068 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19 [2020-07-10 14:39:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 14:39:41,068 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2020-07-10 14:39:41,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 14:39:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2020-07-10 14:39:41,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-10 14:39:41,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:39:41,070 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] [2020-07-10 14:39:41,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:39:41,071 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:39:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:39:41,071 INFO L82 PathProgramCache]: Analyzing trace with hash -524929330, now seen corresponding path program 1 times [2020-07-10 14:39:41,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:39:41,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408212888] [2020-07-10 14:39:41,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:39:41,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:39:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 14:39:41,229 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 14:39:41,229 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 14:39:41,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: isnan_doubleENTRY has no Hoare annotation [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: round_doubleENTRY has no Hoare annotation [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 14:39:41,265 WARN L170 areAnnotationChecker]: __signbit_doubleENTRY has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: isnan_doubleFINAL has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:39:41,266 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: L87 has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 14:39:41,267 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L20-1 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L20-3 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L69-3 has no Hoare annotation [2020-07-10 14:39:41,268 WARN L170 areAnnotationChecker]: L87-1 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: __signbit_doubleFINAL has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-10 14:39:41,269 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: __signbit_doubleEXIT has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L90-1 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L90-4 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L90-4 has no Hoare annotation [2020-07-10 14:39:41,270 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 14:39:41,271 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: L91 has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-10 14:39:41,272 WARN L170 areAnnotationChecker]: round_doubleFINAL has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: round_doubleEXIT has no Hoare annotation [2020-07-10 14:39:41,273 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-10 14:39:41,274 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-10 14:39:41,274 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2020-07-10 14:39:41,274 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-10 14:39:41,274 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. [2020-07-10 14:39:41,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 02:39:41 BoogieIcfgContainer [2020-07-10 14:39:41,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 14:39:41,281 INFO L168 Benchmark]: Toolchain (without parser) took 2577.54 ms. Allocated memory was 141.6 MB in the beginning and 224.4 MB in the end (delta: 82.8 MB). Free memory was 99.6 MB in the beginning and 131.3 MB in the end (delta: -31.8 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,282 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 417.78 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 99.2 MB in the beginning and 175.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,283 INFO L168 Benchmark]: Boogie Preprocessor took 56.94 ms. Allocated memory is still 198.7 MB. Free memory was 175.9 MB in the beginning and 173.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,284 INFO L168 Benchmark]: RCFGBuilder took 674.01 ms. Allocated memory is still 198.7 MB. Free memory was 173.0 MB in the beginning and 138.9 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,285 INFO L168 Benchmark]: TraceAbstraction took 1422.89 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 138.2 MB in the beginning and 131.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-07-10 14:39:41,289 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 0.23 ms. Allocated memory is still 141.6 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 417.78 ms. Allocated memory was 141.6 MB in the beginning and 198.7 MB in the end (delta: 57.1 MB). Free memory was 99.2 MB in the beginning and 175.9 MB in the end (delta: -76.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.94 ms. Allocated memory is still 198.7 MB. Free memory was 175.9 MB in the beginning and 173.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 674.01 ms. Allocated memory is still 198.7 MB. Free memory was 173.0 MB in the beginning and 138.9 MB in the end (delta: 34.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1422.89 ms. Allocated memory was 198.7 MB in the beginning and 224.4 MB in the end (delta: 25.7 MB). Free memory was 138.2 MB in the beginning and 131.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 34, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 90. Possible FailurePath: [L86] double x = -0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=8589934593] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=8589934593, x=8589934593] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=8589934593, exponent_less_1023=0, lsw=0, msw=-1, x=8589934593] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=8589934593, exponent_less_1023=0, lsw=0, msw=-1, x=8589934593] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=8589934593, exponent_less_1023=0, lsw=0, msw=-1, x=8589934593] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] return x; VAL [\old(x)=8589934593, \result=8589934593, exponent_less_1023=0, lsw=0, msw=-1, x=8589934593] [L87] RET, EXPR round_double(x) VAL [round_double(x)=8589934593, x=8589934593] [L87] double res = round_double(x); [L90] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [res=8589934593, res == -0.0 && __signbit_double(res) == 1=0, x=8589934593] [L90] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L91] __VERIFIER_error() VAL [res=8589934593, x=8589934593] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 40 SDslu, 5 SDs, 0 SdLazy, 50 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 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...