java -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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:30:00,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:30:00,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:30:00,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:30:00,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:30:00,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:30:00,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:30:00,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:30:00,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:30:00,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:30:00,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:30:00,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:30:00,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:30:00,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:30:00,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:30:00,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:30:00,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:30:00,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:30:00,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:30:00,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:30:00,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:30:00,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:30:00,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:30:00,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:30:00,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:30:00,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:30:00,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:30:00,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:30:00,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:30:00,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:30:00,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:30:00,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:30:00,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:30:00,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:30:00,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:30:00,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:30:00,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:30:00,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:30:00,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:30:00,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:30:00,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:30:00,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:30:00,423 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:30:00,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:30:00,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:30:00,425 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:30:00,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:30:00,426 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:30:00,426 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:30:00,427 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:30:00,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:30:00,427 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:30:00,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:30:00,430 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:30:00,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:30:00,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:30:00,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:30:00,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:30:00,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:30:00,431 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:30:00,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:30:00,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:30:00,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:30:00,432 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:30:00,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:30:00,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:30:00,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:30:00,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:30:00,433 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:30:00,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:30:00,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:30:00,434 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:30:00,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:30:00,507 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:30:00,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:30:00,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:30:00,517 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:30:00,518 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2019-09-10 01:30:00,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661209b9/bcc4c9cab636470a88984adde65f37f1/FLAG1d9f71c90 [2019-09-10 01:30:01,220 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:30:01,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2019-09-10 01:30:01,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661209b9/bcc4c9cab636470a88984adde65f37f1/FLAG1d9f71c90 [2019-09-10 01:30:01,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8661209b9/bcc4c9cab636470a88984adde65f37f1 [2019-09-10 01:30:01,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:30:01,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:30:01,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:30:01,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:30:01,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:30:01,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:30:01" (1/1) ... [2019-09-10 01:30:01,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514560fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:01, skipping insertion in model container [2019-09-10 01:30:01,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:30:01" (1/1) ... [2019-09-10 01:30:01,647 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:30:01,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:30:01,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:30:01,934 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:30:01,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:30:02,086 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:30:02,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02 WrapperNode [2019-09-10 01:30:02,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:30:02,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:30:02,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:30:02,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:30:02,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (1/1) ... [2019-09-10 01:30:02,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:30:02,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:30:02,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:30:02,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:30:02,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (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 [2019-09-10 01:30:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:30:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:30:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2019-09-10 01:30:02,187 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2019-09-10 01:30:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2019-09-10 01:30:02,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2019-09-10 01:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2019-09-10 01:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2019-09-10 01:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:30:02,357 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:30:02,358 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:30:02,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:30:02 BoogieIcfgContainer [2019-09-10 01:30:02,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:30:02,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:30:02,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:30:02,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:30:02,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:30:01" (1/3) ... [2019-09-10 01:30:02,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653cfde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:30:02, skipping insertion in model container [2019-09-10 01:30:02,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:30:02" (2/3) ... [2019-09-10 01:30:02,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653cfde9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:30:02, skipping insertion in model container [2019-09-10 01:30:02,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:30:02" (3/3) ... [2019-09-10 01:30:02,370 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2019-09-10 01:30:02,381 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:30:02,390 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-09-10 01:30:02,424 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-09-10 01:30:02,461 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:30:02,461 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:30:02,462 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:30:02,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:30:02,465 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:30:02,466 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:30:02,466 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:30:02,466 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:30:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-09-10 01:30:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-10 01:30:02,533 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:30:02,535 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:30:02,538 INFO L418 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:30:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:30:02,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2019-09-10 01:30:02,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:30:02,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:02,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:02,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:30:02,623 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:30:02,643 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:30:02,643 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:30:02,644 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:30:02,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:30:02,659 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:30:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:30:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:30:02,704 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:30:02,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:30:02 BoogieIcfgContainer [2019-09-10 01:30:02,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:30:02,732 INFO L168 Benchmark]: Toolchain (without parser) took 1106.41 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.6 MB in the beginning and 149.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 6.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,734 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.56 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.4 MB in the beginning and 177.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,736 INFO L168 Benchmark]: Boogie Preprocessor took 32.03 ms. Allocated memory is still 200.3 MB. Free memory was 177.1 MB in the beginning and 175.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,737 INFO L168 Benchmark]: RCFGBuilder took 239.61 ms. Allocated memory is still 200.3 MB. Free memory was 175.5 MB in the beginning and 164.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,738 INFO L168 Benchmark]: TraceAbstraction took 367.20 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 149.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:30:02,744 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 133.7 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 460.56 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 89.4 MB in the beginning and 177.7 MB in the end (delta: -88.3 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.03 ms. Allocated memory is still 200.3 MB. Free memory was 177.1 MB in the beginning and 175.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 239.61 ms. Allocated memory is still 200.3 MB. Free memory was 175.5 MB in the beginning and 164.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 367.20 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 149.6 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] CALL multiply() [L18] float f1=0x1.000000p-1f; [L19] float f2=0x1.fffffep-126f; [L21] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312, res=16777215/1427247692705959881058285969449495136382746624] [L23] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312, res=16777215/1427247692705959881058285969449495136382746624] [L23] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312, res=16777215/1427247692705959881058285969449495136382746624] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...