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/double_req_bl_0910a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:43:00,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:43:00,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:43:00,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:43:00,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:43:00,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:43:00,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:43:00,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:43:00,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:43:00,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:43:00,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:43:00,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-09-10 01:43:00,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:43:00,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:43:00,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:43:00,734 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 01:43:00,749 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:43:00,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:43:00,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:43:00,750 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:43:00,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:43:00,751 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:43:00,751 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:43:00,751 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:43:00,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:43:00,752 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:43:00,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:43:00,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:43:00,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:43:00,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:43:00,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:43:00,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:43:00,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:43:00,754 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:43:00,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:43:00,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:43:00,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:43:00,754 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:43:00,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:43:00,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:43:00,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:43:00,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:43:00,755 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:43:00,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:43:00,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:43:00,756 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:43:00,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:43:00,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:43:00,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:43:00,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:43:00,805 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:43:00,805 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2019-09-10 01:43:00,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a5a4e77/7a3cdcbb212140beb5b556f0a93811c5/FLAGdd190cf5e [2019-09-10 01:43:01,301 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:43:01,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2019-09-10 01:43:01,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a5a4e77/7a3cdcbb212140beb5b556f0a93811c5/FLAGdd190cf5e [2019-09-10 01:43:01,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a5a4e77/7a3cdcbb212140beb5b556f0a93811c5 [2019-09-10 01:43:01,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:43:01,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:43:01,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:01,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:43:01,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:43:01,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:01" (1/1) ... [2019-09-10 01:43:01,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c541725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:01, skipping insertion in model container [2019-09-10 01:43:01,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:01" (1/1) ... [2019-09-10 01:43:01,706 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:43:01,740 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:43:02,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:02,122 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:43:02,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:02,180 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:43:02,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02 WrapperNode [2019-09-10 01:43:02,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:02,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:43:02,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:43:02,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:43:02,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (1/1) ... [2019-09-10 01:43:02,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:43:02,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:43:02,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:43:02,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:43:02,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (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 01:43:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:43:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:43:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-10 01:43:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2019-09-10 01:43:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:43:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:43:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:43:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2019-09-10 01:43:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:43:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:43:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:43:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:43:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:43:02,769 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:43:02,769 INFO L283 CfgBuilder]: Removed 8 assume(true) statements. [2019-09-10 01:43:02,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:02 BoogieIcfgContainer [2019-09-10 01:43:02,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:43:02,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:43:02,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:43:02,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:43:02,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:43:01" (1/3) ... [2019-09-10 01:43:02,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a416fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:02, skipping insertion in model container [2019-09-10 01:43:02,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:02" (2/3) ... [2019-09-10 01:43:02,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a416fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:02, skipping insertion in model container [2019-09-10 01:43:02,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:02" (3/3) ... [2019-09-10 01:43:02,778 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-09-10 01:43:02,786 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:43:02,793 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:43:02,809 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:43:02,832 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:43:02,833 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:43:02,833 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:43:02,833 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:43:02,833 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:43:02,833 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:43:02,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:43:02,834 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:43:02,848 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-09-10 01:43:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:43:02,859 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:02,860 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, 1, 1] [2019-09-10 01:43:02,862 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1253555399, now seen corresponding path program 1 times [2019-09-10 01:43:02,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:02,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:02,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:02,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:02,911 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:02,982 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:43:02,983 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:43:02,983 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 01:43:03,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:03,005 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:43:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:03,056 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:43:03,058 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:43:03,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:43:03,058 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 01:43:03,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:03,082 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:43:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:03,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-10 01:43:03,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:43:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:43:03,214 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:43:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 01:43:03,247 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:03,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-09-10 01:43:03,248 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:03,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 01:43:03,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 01:43:03,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:43:03,271 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-09-10 01:43:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:03,289 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2019-09-10 01:43:03,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 01:43:03,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2019-09-10 01:43:03,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:03,302 INFO L225 Difference]: With dead ends: 42 [2019-09-10 01:43:03,302 INFO L226 Difference]: Without dead ends: 38 [2019-09-10 01:43:03,304 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 01:43:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-09-10 01:43:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-09-10 01:43:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-09-10 01:43:03,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2019-09-10 01:43:03,341 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 24 [2019-09-10 01:43:03,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:03,342 INFO L475 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2019-09-10 01:43:03,342 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 01:43:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2019-09-10 01:43:03,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-10 01:43:03,344 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:03,345 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, 1, 1] [2019-09-10 01:43:03,345 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:03,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:03,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1181111728, now seen corresponding path program 1 times [2019-09-10 01:43:03,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:03,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:03,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:03,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:03,348 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:03,402 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:43:03,403 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:43:03,403 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:43:03,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:03,418 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:43:03,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:03,544 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:43:03,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:43:03 BoogieIcfgContainer [2019-09-10 01:43:03,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:43:03,593 INFO L168 Benchmark]: Toolchain (without parser) took 1902.75 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 90.1 MB in the beginning and 91.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,594 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.76 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 177.1 MB in the end (delta: -87.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,596 INFO L168 Benchmark]: Boogie Preprocessor took 47.70 ms. Allocated memory is still 202.4 MB. Free memory was 177.1 MB in the beginning and 174.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,597 INFO L168 Benchmark]: RCFGBuilder took 541.67 ms. Allocated memory is still 202.4 MB. Free memory was 174.8 MB in the beginning and 148.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,598 INFO L168 Benchmark]: TraceAbstraction took 818.63 ms. Allocated memory is still 202.4 MB. Free memory was 148.0 MB in the beginning and 91.5 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:03,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.1 MB. Free memory was 109.4 MB in the beginning and 109.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 490.76 ms. Allocated memory was 143.1 MB in the beginning and 202.4 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 177.1 MB in the end (delta: -87.2 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.70 ms. Allocated memory is still 202.4 MB. Free memory was 177.1 MB in the beginning and 174.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 541.67 ms. Allocated memory is still 202.4 MB. Free memory was 174.8 MB in the beginning and 148.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 818.63 ms. Allocated memory is still 202.4 MB. Free memory was 148.0 MB in the beginning and 91.5 MB in the end (delta: 56.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=8, \old(Lg2_log)=1, \old(Lg3_log)=2, \old(Lg4_log)=9, \old(Lg5_log)=6, \old(Lg6_log)=11, \old(Lg7_log)=5, \old(ln2_hi_log)=3, \old(ln2_lo_log)=4, \old(two54_log)=10, \old(zero)=7, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L132] double x = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L133] CALL, EXPR __ieee754_log(x) VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [\old(x)=0, hx=2211, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=6, two54_log=18014398509481984, x=0, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=0, hx=2211, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=6, two54_log=18014398509481984, x=0, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [\old(x)=0, \result=0, hx=2211, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=6, two54_log=18014398509481984, x=0, zero=0] [L133] RET, EXPR __ieee754_log(x) VAL [__ieee754_log(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L133] double res = __ieee754_log(x); [L136] CALL, EXPR isinf_double(res) VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L19] __int32_t hx, lx; VAL [\old(x)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=0, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=0, \result=0, hx=2146427494, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=582, two54_log=18014398509481984, x=0, zero=0] [L136] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=0, two54_log=18014398509481984, x=0, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=0, two54_log=18014398509481984, x=0, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...