/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_1252b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:45:47,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:45:47,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:45:47,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:45:47,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:45:47,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:45:47,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:45:47,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:45:47,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:45:47,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:45:47,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:45:47,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:45:47,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:45:47,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:45:47,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:45:47,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:45:47,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:45:47,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:45:47,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:45:47,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:45:47,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:45:47,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:45:47,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:45:47,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:45:47,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:45:47,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:45:47,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:45:47,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:45:47,877 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:45:47,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:45:47,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:45:47,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:45:47,893 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:45:47,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:45:47,893 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:45:47,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:45:47,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:45:47,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:45:47,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:45:47,894 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:45:47,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:45:47,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:45:47,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:45:47,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:45:47,895 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:45:47,895 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:45:47,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:45:47,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:45:47,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:45:47,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:45:47,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:45:47,897 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:45:48,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:45:48,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:45:48,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:45:48,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:45:48,295 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:45:48,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-11-07 04:45:48,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd490fe39/aba9ff02205642448979b3ceb6090ba5/FLAG4c4d4950a [2020-11-07 04:45:49,040 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:45:49,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1252b.c [2020-11-07 04:45:49,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd490fe39/aba9ff02205642448979b3ceb6090ba5/FLAG4c4d4950a [2020-11-07 04:45:49,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd490fe39/aba9ff02205642448979b3ceb6090ba5 [2020-11-07 04:45:49,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:45:49,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:45:49,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:49,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:45:49,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:45:49,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614eea74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49, skipping insertion in model container [2020-11-07 04:45:49,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:45:49,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:45:49,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:49,807 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:45:49,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:45:49,903 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:45:49,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49 WrapperNode [2020-11-07 04:45:49,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:45:49,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:45:49,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:45:49,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:45:49,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (1/1) ... [2020-11-07 04:45:49,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:45:50,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:45:50,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:45:50,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:45:50,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (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 [2020-11-07 04:45:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:45:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:45:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:45:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-11-07 04:45:50,092 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-11-07 04:45:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-11-07 04:45:50,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:45:50,093 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-11-07 04:45:50,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-07 04:45:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:45:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:45:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-11-07 04:45:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-11-07 04:45:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:45:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:45:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:45:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:45:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:45:50,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-07 04:45:50,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:45:50,688 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-07 04:45:50,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:50 BoogieIcfgContainer [2020-11-07 04:45:50,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:45:50,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:45:50,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:45:50,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:45:50,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:45:49" (1/3) ... [2020-11-07 04:45:50,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65493e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:50, skipping insertion in model container [2020-11-07 04:45:50,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:45:49" (2/3) ... [2020-11-07 04:45:50,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65493e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:45:50, skipping insertion in model container [2020-11-07 04:45:50,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:45:50" (3/3) ... [2020-11-07 04:45:50,699 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252b.c [2020-11-07 04:45:50,715 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:45:50,720 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:45:50,732 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:45:50,758 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:45:50,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:45:50,758 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:45:50,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:45:50,758 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:45:50,759 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:45:50,759 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:45:50,759 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:45:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2020-11-07 04:45:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-07 04:45:50,789 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:50,790 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] [2020-11-07 04:45:50,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:50,797 INFO L82 PathProgramCache]: Analyzing trace with hash 310684608, now seen corresponding path program 1 times [2020-11-07 04:45:50,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:50,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170014479] [2020-11-07 04:45:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:51,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170014479] [2020-11-07 04:45:51,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:51,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 04:45:51,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562575547] [2020-11-07 04:45:51,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 04:45:51,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:51,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 04:45:51,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 04:45:51,267 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 4 states. [2020-11-07 04:45:51,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:51,731 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2020-11-07 04:45:51,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-07 04:45:51,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-11-07 04:45:51,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:51,743 INFO L225 Difference]: With dead ends: 185 [2020-11-07 04:45:51,743 INFO L226 Difference]: Without dead ends: 93 [2020-11-07 04:45:51,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 04:45:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-11-07 04:45:51,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-11-07 04:45:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-11-07 04:45:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 101 transitions. [2020-11-07 04:45:51,809 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 101 transitions. Word has length 41 [2020-11-07 04:45:51,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:51,810 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 101 transitions. [2020-11-07 04:45:51,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 04:45:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 101 transitions. [2020-11-07 04:45:51,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-07 04:45:51,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:51,814 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] [2020-11-07 04:45:51,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:45:51,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:51,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:51,816 INFO L82 PathProgramCache]: Analyzing trace with hash -310270038, now seen corresponding path program 1 times [2020-11-07 04:45:51,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:51,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029744692] [2020-11-07 04:45:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:51,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:52,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029744692] [2020-11-07 04:45:52,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:52,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:52,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529128568] [2020-11-07 04:45:52,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:52,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:52,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:52,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:52,049 INFO L87 Difference]: Start difference. First operand 93 states and 101 transitions. Second operand 6 states. [2020-11-07 04:45:52,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:52,373 INFO L93 Difference]: Finished difference Result 130 states and 140 transitions. [2020-11-07 04:45:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:52,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-11-07 04:45:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:52,378 INFO L225 Difference]: With dead ends: 130 [2020-11-07 04:45:52,379 INFO L226 Difference]: Without dead ends: 98 [2020-11-07 04:45:52,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:45:52,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-07 04:45:52,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-11-07 04:45:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-07 04:45:52,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2020-11-07 04:45:52,400 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 55 [2020-11-07 04:45:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:52,401 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2020-11-07 04:45:52,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2020-11-07 04:45:52,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 04:45:52,403 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:52,404 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, 1] [2020-11-07 04:45:52,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 04:45:52,404 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:52,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:52,405 INFO L82 PathProgramCache]: Analyzing trace with hash 344804155, now seen corresponding path program 1 times [2020-11-07 04:45:52,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:52,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1475177231] [2020-11-07 04:45:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:52,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 04:45:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:52,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-11-07 04:45:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:52,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 04:45:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 04:45:52,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 04:45:52,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1475177231] [2020-11-07 04:45:52,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 04:45:52,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 04:45:52,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187669562] [2020-11-07 04:45:52,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 04:45:52,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 04:45:52,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 04:45:52,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 04:45:52,607 INFO L87 Difference]: Start difference. First operand 97 states and 106 transitions. Second operand 6 states. [2020-11-07 04:45:52,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 04:45:52,923 INFO L93 Difference]: Finished difference Result 134 states and 145 transitions. [2020-11-07 04:45:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 04:45:52,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-11-07 04:45:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 04:45:52,926 INFO L225 Difference]: With dead ends: 134 [2020-11-07 04:45:52,926 INFO L226 Difference]: Without dead ends: 102 [2020-11-07 04:45:52,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 04:45:52,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-11-07 04:45:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 97. [2020-11-07 04:45:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-07 04:45:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 106 transitions. [2020-11-07 04:45:52,942 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 106 transitions. Word has length 58 [2020-11-07 04:45:52,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 04:45:52,942 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 106 transitions. [2020-11-07 04:45:52,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 04:45:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 106 transitions. [2020-11-07 04:45:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-07 04:45:52,945 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:45:52,945 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, 1] [2020-11-07 04:45:52,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 04:45:52,945 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:45:52,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:45:52,946 INFO L82 PathProgramCache]: Analyzing trace with hash 956683003, now seen corresponding path program 1 times [2020-11-07 04:45:52,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:45:52,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262744447] [2020-11-07 04:45:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:45:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:52,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:45:52,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:45:53,029 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:45:53,030 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:45:53,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 04:45:53,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:45:53 BoogieIcfgContainer [2020-11-07 04:45:53,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:45:53,080 INFO L168 Benchmark]: Toolchain (without parser) took 3654.94 ms. Allocated memory is still 157.3 MB. Free memory was 134.3 MB in the beginning and 67.7 MB in the end (delta: 66.6 MB). Peak memory consumption was 67.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:53,081 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 102.5 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:45:53,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.12 ms. Allocated memory is still 157.3 MB. Free memory was 133.6 MB in the beginning and 122.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:53,083 INFO L168 Benchmark]: Boogie Preprocessor took 93.46 ms. Allocated memory is still 157.3 MB. Free memory was 122.7 MB in the beginning and 121.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:53,084 INFO L168 Benchmark]: RCFGBuilder took 687.48 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 130.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:53,085 INFO L168 Benchmark]: TraceAbstraction took 2386.36 ms. Allocated memory is still 157.3 MB. Free memory was 130.0 MB in the beginning and 67.7 MB in the end (delta: 62.4 MB). Peak memory consumption was 62.7 MB. Max. memory is 8.0 GB. [2020-11-07 04:45:53,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 125.8 MB. Free memory was 102.5 MB in the beginning and 102.5 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 469.12 ms. Allocated memory is still 157.3 MB. Free memory was 133.6 MB in the beginning and 122.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.46 ms. Allocated memory is still 157.3 MB. Free memory was 122.7 MB in the beginning and 121.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 687.48 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 130.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2386.36 ms. Allocated memory is still 157.3 MB. Free memory was 130.0 MB in the beginning and 67.7 MB in the end (delta: 62.4 MB). Peak memory consumption was 62.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someUnaryDOUBLEoperation at line 82. Possible FailurePath: [L81] double x = 0.0; VAL [x=0] [L82] double y = -0.0; VAL [x=0] [L83] CALL, EXPR fmax_double(x, y) VAL [\old(x)=0, \old(y)=4294967305] [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L29] ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={3:0}, x=0] [L30] ew_u.value = (x) VAL [\old(x)=0, ew_u={3:0}, x=0] [L31] EXPR ew_u.parts.msw VAL [\old(x)=0, ew_u={3:0}, ew_u.parts.msw=2146435073, x=0] [L31] (msw) = ew_u.parts.msw VAL [\old(x)=0, ew_u={3:0}, ew_u.parts.msw=2146435073, msw=2146435073, x=0] [L32] EXPR ew_u.parts.lsw VAL [\old(x)=0, ew_u={3:0}, ew_u.parts.lsw=4294967297, msw=2146435073, x=0] [L32] (lsw) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={3:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=2146435073, x=0] [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=0, lsw=4294967297, msw=2146435073, x=0] [L49] return 0; VAL [\old(x)=0, \result=0, lsw=4294967297, msw=2146435073, x=0] [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=4294967305, __fpclassify_double(x)=0, x=0, y=4294967305] [L54] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=0, \old(y)=4294967305, __fpclassify_double(x)=0, x=0, y=4294967305] [L55] return y; VAL [\old(x)=0, \old(y)=4294967305, \result=4294967305, x=0, y=4294967305] [L83] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=4294967305, x=0, y=4294967305] [L83] double res = fmax_double(x, y); VAL [fmax_double(x, y)=4294967305, res=4294967305, x=0, y=4294967305] [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=4294967305, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967305] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [res=4294967305, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=4294967305] [L87] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1252b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 303 SDtfs, 65 SDslu, 540 SDs, 0 SdLazy, 408 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 16807 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...