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/float-newlib/float_req_bl_1121a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:45:01,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:45:01,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:45:01,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:45:01,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:45:01,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:45:01,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:45:01,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:45:01,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:45:01,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:45:01,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:45:01,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:45:01,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:45:01,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:45:01,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:45:01,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:45:01,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:45:01,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:45:01,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:45:01,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:45:01,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:45:01,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:45:01,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:45:01,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:45:01,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:45:01,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:45:01,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:45:01,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:45:01,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:45:01,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:45:01,565 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:45:01,566 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:45:01,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:45:01,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:45:01,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:45:01,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:45:01,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:45:01,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:45:01,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:45:01,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:45:01,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:45:01,573 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 01:45:01,588 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:45:01,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:45:01,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:45:01,589 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:45:01,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:45:01,590 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:45:01,590 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:45:01,590 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:45:01,590 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:45:01,590 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:45:01,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:45:01,591 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:45:01,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:45:01,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:45:01,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:45:01,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:45:01,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:45:01,593 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:45:01,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:45:01,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:45:01,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:45:01,594 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:45:01,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:45:01,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:45:01,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:45:01,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:45:01,595 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:45:01,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:45:01,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:45:01,595 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:45:01,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:45:01,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:45:01,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:45:01,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:45:01,647 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:45:01,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1121a.c [2019-09-10 01:45:01,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad46a520/51c809a6bfa24d739a452f861da7cbe8/FLAGb199ff84e [2019-09-10 01:45:02,258 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:45:02,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1121a.c [2019-09-10 01:45:02,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad46a520/51c809a6bfa24d739a452f861da7cbe8/FLAGb199ff84e [2019-09-10 01:45:02,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ad46a520/51c809a6bfa24d739a452f861da7cbe8 [2019-09-10 01:45:02,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:45:02,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:45:02,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:02,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:45:02,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:45:02,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:02" (1/1) ... [2019-09-10 01:45:02,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416c7d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:02, skipping insertion in model container [2019-09-10 01:45:02,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:45:02" (1/1) ... [2019-09-10 01:45:02,612 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:45:02,632 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:45:02,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:02,857 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:45:02,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:45:03,018 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:45:03,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03 WrapperNode [2019-09-10 01:45:03,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:45:03,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:45:03,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:45:03,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:45:03,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (1/1) ... [2019-09-10 01:45:03,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:45:03,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:45:03,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:45:03,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:45:03,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (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 01:45:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:45:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:45:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2019-09-10 01:45:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2019-09-10 01:45:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:45:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:45:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:45:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2019-09-10 01:45:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:45:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:45:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:45:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:45:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:45:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:45:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2019-09-10 01:45:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:45:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:45:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-09-10 01:45:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:45:03,602 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:45:03,602 INFO L283 CfgBuilder]: Removed 12 assume(true) statements. [2019-09-10 01:45:03,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:03 BoogieIcfgContainer [2019-09-10 01:45:03,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:45:03,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:45:03,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:45:03,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:45:03,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:45:02" (1/3) ... [2019-09-10 01:45:03,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:03, skipping insertion in model container [2019-09-10 01:45:03,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:45:03" (2/3) ... [2019-09-10 01:45:03,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:45:03, skipping insertion in model container [2019-09-10 01:45:03,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:45:03" (3/3) ... [2019-09-10 01:45:03,612 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-09-10 01:45:03,622 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:45:03,630 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:45:03,647 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:45:03,674 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:45:03,675 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:45:03,675 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:45:03,675 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:45:03,675 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:45:03,675 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:45:03,675 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:45:03,676 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:45:03,690 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-09-10 01:45:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:45:03,700 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:45:03,701 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:45:03,703 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:45:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:45:03,709 INFO L82 PathProgramCache]: Analyzing trace with hash -205428686, now seen corresponding path program 1 times [2019-09-10 01:45:03,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:45:03,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:03,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:03,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:45:03,760 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:45:03,835 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:45:03,836 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:45:03,836 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 01:45:03,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:45:03,851 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:45:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:45:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 01:45:03,961 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:45:04,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:45:04 BoogieIcfgContainer [2019-09-10 01:45:04,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:45:04,031 INFO L168 Benchmark]: Toolchain (without parser) took 1435.86 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.8 MB in the beginning and 121.8 MB in the end (delta: -32.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,033 INFO L168 Benchmark]: CDTParser took 0.27 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: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.41 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.4 MB in the beginning and 174.5 MB in the end (delta: -85.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,038 INFO L168 Benchmark]: Boogie Preprocessor took 50.33 ms. Allocated memory is still 199.8 MB. Free memory was 174.5 MB in the beginning and 172.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,039 INFO L168 Benchmark]: RCFGBuilder took 534.32 ms. Allocated memory is still 199.8 MB. Free memory was 172.0 MB in the beginning and 145.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,040 INFO L168 Benchmark]: TraceAbstraction took 423.20 ms. Allocated memory is still 199.8 MB. Free memory was 145.6 MB in the beginning and 121.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:45:04,049 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.41 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.4 MB in the beginning and 174.5 MB in the end (delta: -85.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.33 ms. Allocated memory is still 199.8 MB. Free memory was 174.5 MB in the beginning and 172.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 534.32 ms. Allocated memory is still 199.8 MB. Free memory was 172.0 MB in the beginning and 145.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 423.20 ms. Allocated memory is still 199.8 MB. Free memory was 145.6 MB in the beginning and 121.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=2, \old(Zero_fmod)=7, \old(Zero_fmod)=9, one_fmod=1, Zero_fmod={-2:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; VAL [one_fmod=1, x=0, y=0, Zero_fmod={-2:0}] [L119] CALL, EXPR fmod_float(x, y) VAL [\old(x)=0, \old(y)=0, one_fmod=1, Zero_fmod={-2:0}] [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=0, \old(y)=0, one_fmod=1, x=0, y=0, Zero_fmod={-2:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=0, one_fmod=1, sx=8456, x=0, y=0, Zero_fmod={-2:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=0, \result=0, hx=0, hy=2139095041, one_fmod=1, sx=8456, x=0, y=0, Zero_fmod={-2:0}] [L119] RET, EXPR fmod_float(x, y) VAL [fmod_float(x, y)=0, one_fmod=1, x=0, y=0, Zero_fmod={-2:0}] [L119] float res = fmod_float(x, y); [L122] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_fmod=1, Zero_fmod={-2:0}] [L108] return x != x; VAL [\old(x)=0, \result=0, one_fmod=1, x=0, Zero_fmod={-2:0}] [L122] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_fmod=1, res=0, x=0, y=0, Zero_fmod={-2:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, res=0, x=0, y=0, Zero_fmod={-2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. UNSAFE Result, 0.3s 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=55occurred 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, 22 NumberOfCodeBlocks, 22 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...