/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:49:48,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:48,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:48,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:48,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:48,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:48,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:48,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:48,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:48,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:48,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:48,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:48,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:48,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:48,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:48,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:48,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:48,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:48,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:48,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:48,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:48,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:48,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:48,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:48,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:49:48,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:48,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:48,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:48,658 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:49:48,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:48,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:48,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:48,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:48,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:48,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:48,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:48,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:48,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:48,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:48,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:48,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:48,678 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:48,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:48,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:48,679 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:48,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:48,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:48,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:48,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:48,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:48,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:48,680 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 21:49:48,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:48,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:48,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:48,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:48,948 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:48,949 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-08-22 21:49:49,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6388b98f4/cb1af103cfa642f7bc9cf9612290740e/FLAGed800fe23 [2020-08-22 21:49:49,440 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:49:49,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1231b.c [2020-08-22 21:49:49,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6388b98f4/cb1af103cfa642f7bc9cf9612290740e/FLAGed800fe23 [2020-08-22 21:49:49,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6388b98f4/cb1af103cfa642f7bc9cf9612290740e [2020-08-22 21:49:49,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:49:49,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:49:49,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:49,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:49:49,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:49:49,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:49" (1/1) ... [2020-08-22 21:49:49,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0a7f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:49, skipping insertion in model container [2020-08-22 21:49:49,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:49" (1/1) ... [2020-08-22 21:49:49,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:49:49,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:49:50,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:50,091 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:49:50,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:50,141 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:49:50,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50 WrapperNode [2020-08-22 21:49:50,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:50,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:49:50,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:49:50,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:49:50,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... [2020-08-22 21:49:50,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:49:50,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:49:50,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:49:50,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:49:50,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:49:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:49:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 21:49:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 21:49:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-08-22 21:49:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:49:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:49:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:49:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:49:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-08-22 21:49:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:49:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:49:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:49:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:49:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:49:50,721 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:49:50,722 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 21:49:50,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:50 BoogieIcfgContainer [2020-08-22 21:49:50,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:49:50,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:49:50,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:49:50,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:49:50,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:49:49" (1/3) ... [2020-08-22 21:49:50,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccdbc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:50, skipping insertion in model container [2020-08-22 21:49:50,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:50" (2/3) ... [2020-08-22 21:49:50,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccdbc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:50, skipping insertion in model container [2020-08-22 21:49:50,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:50" (3/3) ... [2020-08-22 21:49:50,735 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1231b.c [2020-08-22 21:49:50,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:49:50,752 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:49:50,765 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:49:50,782 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:49:50,782 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:49:50,782 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:49:50,782 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:49:50,783 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:49:50,783 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:49:50,783 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:49:50,783 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:49:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-08-22 21:49:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-22 21:49:50,811 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:50,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:50,812 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:50,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1497092675, now seen corresponding path program 1 times [2020-08-22 21:49:50,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:50,824 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537356747] [2020-08-22 21:49:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:51,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537356747] [2020-08-22 21:49:51,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:51,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:49:51,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694159359] [2020-08-22 21:49:51,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:49:51,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:51,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:49:51,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:49:51,107 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-08-22 21:49:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:51,338 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-08-22 21:49:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:49:51,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-08-22 21:49:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:51,351 INFO L225 Difference]: With dead ends: 141 [2020-08-22 21:49:51,352 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 21:49:51,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 21:49:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 21:49:51,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-22 21:49:51,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-22 21:49:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-08-22 21:49:51,414 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-08-22 21:49:51,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:51,415 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-08-22 21:49:51,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:49:51,415 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-08-22 21:49:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-22 21:49:51,418 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:51,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:51,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:49:51,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:51,420 INFO L82 PathProgramCache]: Analyzing trace with hash 2105627481, now seen corresponding path program 1 times [2020-08-22 21:49:51,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:51,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996838577] [2020-08-22 21:49:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:51,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996838577] [2020-08-22 21:49:51,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:51,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:51,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927018169] [2020-08-22 21:49:51,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:51,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:51,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:51,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:51,717 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-08-22 21:49:51,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:51,928 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-08-22 21:49:51,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:51,929 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-08-22 21:49:51,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:51,935 INFO L225 Difference]: With dead ends: 88 [2020-08-22 21:49:51,935 INFO L226 Difference]: Without dead ends: 79 [2020-08-22 21:49:51,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:49:51,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-08-22 21:49:51,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-08-22 21:49:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-22 21:49:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-08-22 21:49:51,971 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-08-22 21:49:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:51,972 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-08-22 21:49:51,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-08-22 21:49:51,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 21:49:51,977 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:51,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:51,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:49:51,978 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:51,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:51,978 INFO L82 PathProgramCache]: Analyzing trace with hash 358345182, now seen corresponding path program 1 times [2020-08-22 21:49:51,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:51,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919164100] [2020-08-22 21:49:51,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:52,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:52,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:52,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:49:52,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1919164100] [2020-08-22 21:49:52,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:52,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:52,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327117230] [2020-08-22 21:49:52,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:52,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:52,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:52,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:52,171 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-08-22 21:49:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:52,356 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-08-22 21:49:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:52,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-08-22 21:49:52,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:52,359 INFO L225 Difference]: With dead ends: 92 [2020-08-22 21:49:52,362 INFO L226 Difference]: Without dead ends: 83 [2020-08-22 21:49:52,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:49:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-08-22 21:49:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-08-22 21:49:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-22 21:49:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-08-22 21:49:52,390 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-08-22 21:49:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:52,390 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-08-22 21:49:52,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-08-22 21:49:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 21:49:52,395 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:52,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:49:52,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:49:52,396 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:52,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1239578082, now seen corresponding path program 1 times [2020-08-22 21:49:52,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:52,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259780435] [2020-08-22 21:49:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:52,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:52,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:52,508 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:49:52,509 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:49:52,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:49:52,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:49:52 BoogieIcfgContainer [2020-08-22 21:49:52,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:49:52,553 INFO L168 Benchmark]: Toolchain (without parser) took 2681.13 ms. Allocated memory was 140.0 MB in the beginning and 234.4 MB in the end (delta: 94.4 MB). Free memory was 102.5 MB in the beginning and 112.8 MB in the end (delta: -10.3 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,554 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,554 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.55 ms. Allocated memory is still 140.0 MB. Free memory was 102.3 MB in the beginning and 91.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,556 INFO L168 Benchmark]: Boogie Preprocessor took 123.44 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 180.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,557 INFO L168 Benchmark]: RCFGBuilder took 460.52 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,558 INFO L168 Benchmark]: TraceAbstraction took 1821.87 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 157.7 MB in the beginning and 112.8 MB in the end (delta: 44.9 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:52,562 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.55 ms. Allocated memory is still 140.0 MB. Free memory was 102.3 MB in the beginning and 91.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.44 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 91.2 MB in the beginning and 180.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.52 ms. Allocated memory is still 202.9 MB. Free memory was 180.2 MB in the beginning and 158.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1821.87 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 157.7 MB in the beginning and 112.8 MB in the end (delta: 44.9 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 68]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 67, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L60] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967301, x=4294967301] [L61] double y = 0.0 / 0.0; VAL [x=4294967301] [L62] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967301] [L16] return x != x; VAL [\old(x)=4294967301, \result=0, x=4294967301] [L62] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L62] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L64] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4294967301, \old(y)=4294967300] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301] [L18] __uint32_t msw, lsw; VAL [\old(x)=4294967301, x=4294967301] [L21] ieee_double_shape_type ew_u; VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L22] ew_u.value = (x) VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L23] EXPR ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4294967301] [L23] (msw) = ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967301] [L24] EXPR ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967301] [L24] (lsw) = ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967301] [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L41] return 0; VAL [\old(x)=4294967301, \result=0, lsw=4294967297, msw=4293918721, x=4294967301] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301, \old(y)=4294967300, __fpclassify_double(x)=0, x=4294967301, y=4294967300] [L45] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967301, \old(y)=4294967300, __fpclassify_double(x)=0, x=4294967301, y=4294967300] [L46] return y; VAL [\old(x)=4294967301, \old(y)=4294967300, \result=4294967300, x=4294967301, y=4294967300] [L64] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4294967300, x=4294967301, y=4294967300] [L64] double res = fmin_double(x, y); VAL [fmin_double(x, y)=4294967300, res=4294967300, x=4294967301, y=4294967300] [L67] COND TRUE res != x VAL [res=4294967300, x=4294967301, y=4294967300] [L68] __VERIFIER_error() VAL [res=4294967300, x=4294967301, y=4294967300] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 97 SDslu, 395 SDs, 0 SdLazy, 325 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 13222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...