/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_1251b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:49:54,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:54,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:54,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:54,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:54,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:54,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:54,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:54,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:54,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:54,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:54,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:54,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:54,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:54,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:54,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:54,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:54,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:54,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:54,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:54,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:54,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:54,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:54,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:54,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:49:54,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:54,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:54,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:54,764 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 21:49:54,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:54,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:54,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:54,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:54,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:54,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:54,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:54,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:54,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:54,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:54,777 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:54,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:54,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:54,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:54,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:54,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:54,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:54,778 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 21:49:55,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:55,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:55,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:55,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:55,055 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:55,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-08-22 21:49:55,120 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4891d7c65/18fe491e1aad4540b5cb70ca34281e2a/FLAG230050d1f [2020-08-22 21:49:55,529 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:49:55,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1251b.c [2020-08-22 21:49:55,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4891d7c65/18fe491e1aad4540b5cb70ca34281e2a/FLAG230050d1f [2020-08-22 21:49:55,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4891d7c65/18fe491e1aad4540b5cb70ca34281e2a [2020-08-22 21:49:55,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:49:55,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:49:55,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:55,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:49:55,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:49:55,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590f663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:55, skipping insertion in model container [2020-08-22 21:49:55,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:49:55" (1/1) ... [2020-08-22 21:49:55,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:49:55,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:49:56,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:56,134 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:49:56,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:49:56,281 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:49:56,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56 WrapperNode [2020-08-22 21:49:56,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:49:56,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:49:56,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:49:56,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:49:56,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (1/1) ... [2020-08-22 21:49:56,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:49:56,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:49:56,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:49:56,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:49:56,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (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 21:49:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:49:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:49:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 21:49:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 21:49:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-08-22 21:49:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:49:56,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:49:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:49:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:49:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-08-22 21:49:56,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:49:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:49:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:49:56,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:49:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:49:56,741 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:49:56,741 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-08-22 21:49:56,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:56 BoogieIcfgContainer [2020-08-22 21:49:56,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:49:56,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:49:56,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:49:56,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:49:56,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:49:55" (1/3) ... [2020-08-22 21:49:56,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f6faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:56, skipping insertion in model container [2020-08-22 21:49:56,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:49:56" (2/3) ... [2020-08-22 21:49:56,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123f6faf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:49:56, skipping insertion in model container [2020-08-22 21:49:56,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:49:56" (3/3) ... [2020-08-22 21:49:56,756 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2020-08-22 21:49:56,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:49:56,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:49:56,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:49:56,813 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:49:56,813 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:49:56,813 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:49:56,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:49:56,814 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:49:56,814 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:49:56,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:49:56,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:49:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states. [2020-08-22 21:49:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-22 21:49:56,856 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:56,858 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 21:49:56,859 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:56,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1770687738, now seen corresponding path program 1 times [2020-08-22 21:49:56,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:56,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301353354] [2020-08-22 21:49:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,145 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 21:49:57,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301353354] [2020-08-22 21:49:57,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:57,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:49:57,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820235202] [2020-08-22 21:49:57,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:49:57,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:57,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:49:57,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:49:57,172 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 4 states. [2020-08-22 21:49:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:57,429 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2020-08-22 21:49:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:49:57,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-08-22 21:49:57,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:57,442 INFO L225 Difference]: With dead ends: 141 [2020-08-22 21:49:57,443 INFO L226 Difference]: Without dead ends: 74 [2020-08-22 21:49:57,447 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 21:49:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-08-22 21:49:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-08-22 21:49:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-08-22 21:49:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2020-08-22 21:49:57,500 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 40 [2020-08-22 21:49:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:57,501 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2020-08-22 21:49:57,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:49:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2020-08-22 21:49:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-22 21:49:57,505 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:57,505 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 21:49:57,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:49:57,506 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:57,507 INFO L82 PathProgramCache]: Analyzing trace with hash 524719120, now seen corresponding path program 1 times [2020-08-22 21:49:57,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:57,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685281736] [2020-08-22 21:49:57,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:57,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:57,742 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 21:49:57,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685281736] [2020-08-22 21:49:57,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:57,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:57,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321827639] [2020-08-22 21:49:57,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:57,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:57,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:57,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:57,747 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 6 states. [2020-08-22 21:49:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:57,962 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-08-22 21:49:57,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:57,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-08-22 21:49:57,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:57,966 INFO L225 Difference]: With dead ends: 88 [2020-08-22 21:49:57,967 INFO L226 Difference]: Without dead ends: 79 [2020-08-22 21:49:57,968 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 21:49:57,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-08-22 21:49:57,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2020-08-22 21:49:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-22 21:49:57,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-08-22 21:49:57,985 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 54 [2020-08-22 21:49:57,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:57,985 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-08-22 21:49:57,985 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:57,986 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-08-22 21:49:57,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 21:49:57,987 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:57,988 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 21:49:57,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:49:57,988 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:57,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash 2023591653, now seen corresponding path program 1 times [2020-08-22 21:49:57,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:57,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570929410] [2020-08-22 21:49:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:49:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:58,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 21:49:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-22 21:49:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:58,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:49:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:49:58,215 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 21:49:58,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570929410] [2020-08-22 21:49:58,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:49:58,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:49:58,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484209776] [2020-08-22 21:49:58,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:49:58,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:49:58,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:49:58,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:49:58,218 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand 6 states. [2020-08-22 21:49:58,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:49:58,399 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2020-08-22 21:49:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:49:58,400 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-08-22 21:49:58,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:49:58,402 INFO L225 Difference]: With dead ends: 92 [2020-08-22 21:49:58,402 INFO L226 Difference]: Without dead ends: 83 [2020-08-22 21:49:58,403 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 21:49:58,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-08-22 21:49:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2020-08-22 21:49:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-22 21:49:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2020-08-22 21:49:58,415 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 57 [2020-08-22 21:49:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:49:58,416 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2020-08-22 21:49:58,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:49:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2020-08-22 21:49:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-22 21:49:58,418 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:49:58,418 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 21:49:58,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:49:58,419 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:49:58,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:49:58,419 INFO L82 PathProgramCache]: Analyzing trace with hash 425668389, now seen corresponding path program 1 times [2020-08-22 21:49:58,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:49:58,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1565263004] [2020-08-22 21:49:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:49:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:58,445 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:49:58,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:49:58,487 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:49:58,487 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:49:58,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:49:58,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:49:58 BoogieIcfgContainer [2020-08-22 21:49:58,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:49:58,529 INFO L168 Benchmark]: Toolchain (without parser) took 2631.19 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 101.4 MB in the beginning and 114.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,530 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.76 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 181.7 MB in the end (delta: -80.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,532 INFO L168 Benchmark]: Boogie Preprocessor took 55.73 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 179.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,533 INFO L168 Benchmark]: RCFGBuilder took 405.65 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 157.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,534 INFO L168 Benchmark]: TraceAbstraction took 1777.58 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.7 MB in the beginning and 114.8 MB in the end (delta: 41.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:49:58,538 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.76 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.2 MB in the beginning and 181.7 MB in the end (delta: -80.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.73 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 179.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 405.65 ms. Allocated memory is still 203.4 MB. Free memory was 179.3 MB in the beginning and 157.4 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1777.58 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 156.7 MB in the beginning and 114.8 MB in the end (delta: 41.9 MB). Peak memory consumption was 73.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 77, overapproximation of someBinaryArithmeticDOUBLEoperation at line 65. Possible FailurePath: [L64] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=4294967301, x=4294967301] [L65] double y = 0.0 / 0.0; VAL [x=4294967301] [L72] CALL, EXPR isnan_double(x) VAL [\old(x)=4294967301] [L16] return x != x; VAL [\old(x)=4294967301, \result=0, x=4294967301] [L72] RET, EXPR isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L72] COND TRUE !isnan_double(x) VAL [isnan_double(x)=0, x=4294967301] [L74] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967301, \old(y)=4294967299] [L55] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301] [L27] __uint32_t msw, lsw; VAL [\old(x)=4294967301, x=4294967301] [L30] ieee_double_shape_type ew_u; VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L31] ew_u.value = (x) VAL [\old(x)=4294967301, ew_u={2:0}, x=4294967301] [L32] EXPR ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4294967301] [L32] (msw) = ew_u.parts.msw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967301] [L33] EXPR ew_u.parts.lsw VAL [\old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967301] [L33] (lsw) = ew_u.parts.lsw VAL [(lsw) = ew_u.parts.lsw=4294967302, \old(x)=4294967301, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967301] [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967301, lsw=4294967297, msw=4293918721, x=4294967301] [L50] return 0; VAL [\old(x)=4294967301, \result=0, lsw=4294967297, msw=4293918721, x=4294967301] [L55] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L55] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967301, \old(y)=4294967299, __fpclassify_double(x)=0, x=4294967301, y=4294967299] [L56] return y; VAL [\old(x)=4294967301, \old(y)=4294967299, \result=4294967299, x=4294967301, y=4294967299] [L74] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967299, x=4294967301, y=4294967299] [L74] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967299, res=4294967299, x=4294967301, y=4294967299] [L77] COND TRUE res != x VAL [res=4294967299, x=4294967301, y=4294967299] [L78] __VERIFIER_error() VAL [res=4294967299, x=4294967301, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, 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: 0.0s 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...