/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 22:07:39,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 22:07:39,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 22:07:39,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 22:07:39,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 22:07:39,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 22:07:39,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 22:07:39,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 22:07:39,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 22:07:39,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 22:07:39,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 22:07:39,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 22:07:39,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 22:07:39,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 22:07:39,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 22:07:39,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 22:07:39,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 22:07:39,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 22:07:39,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 22:07:39,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 22:07:39,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 22:07:39,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 22:07:39,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 22:07:39,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 22:07:39,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 22:07:39,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 22:07:39,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 22:07:39,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 22:07:39,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 22:07:39,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 22:07:39,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 22:07:39,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 22:07:39,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 22:07:39,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 22:07:39,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 22:07:39,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 22:07:39,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 22:07:39,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 22:07:39,977 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 22:07:39,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 22:07:39,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 22:07:39,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 22:07:39,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 22:07:39,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 22:07:39,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 22:07:39,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 22:07:39,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 22:07:39,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 22:07:39,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 22:07:39,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 22:07:39,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 22:07:39,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 22:07:39,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 22:07:39,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 22:07:39,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 22:07:39,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 22:07:39,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 22:07:39,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 22:07:39,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 22:07:39,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 22:07:39,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 22:07:39,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 22:07:39,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 22:07:39,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-08-21 22:07:40,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 22:07:40,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 22:07:40,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 22:07:40,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 22:07:40,286 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 22:07:40,287 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-21 22:07:40,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f992163e9/5d006d259ce24934a78e17cd201f5789/FLAG701ee20ea [2020-08-21 22:07:40,863 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 22:07:40,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-21 22:07:40,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f992163e9/5d006d259ce24934a78e17cd201f5789/FLAG701ee20ea [2020-08-21 22:07:41,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f992163e9/5d006d259ce24934a78e17cd201f5789 [2020-08-21 22:07:41,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 22:07:41,182 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 22:07:41,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 22:07:41,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 22:07:41,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 22:07:41,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea71ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41, skipping insertion in model container [2020-08-21 22:07:41,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 22:07:41,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 22:07:41,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:07:41,448 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 22:07:41,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 22:07:41,603 INFO L208 MainTranslator]: Completed translation [2020-08-21 22:07:41,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41 WrapperNode [2020-08-21 22:07:41,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 22:07:41,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 22:07:41,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 22:07:41,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 22:07:41,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... [2020-08-21 22:07:41,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 22:07:41,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 22:07:41,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 22:07:41,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 22:07:41,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 22:07:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 22:07:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 22:07:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-08-21 22:07:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-21 22:07:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 22:07:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 22:07:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 22:07:42,079 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 22:07:42,080 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-21 22:07:42,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:07:42 BoogieIcfgContainer [2020-08-21 22:07:42,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 22:07:42,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 22:07:42,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 22:07:42,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 22:07:42,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 10:07:41" (1/3) ... [2020-08-21 22:07:42,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731d07ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:07:42, skipping insertion in model container [2020-08-21 22:07:42,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 10:07:41" (2/3) ... [2020-08-21 22:07:42,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731d07ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 10:07:42, skipping insertion in model container [2020-08-21 22:07:42,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 10:07:42" (3/3) ... [2020-08-21 22:07:42,102 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-08-21 22:07:42,125 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 22:07:42,146 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 22:07:42,171 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 22:07:42,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 22:07:42,196 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 22:07:42,196 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 22:07:42,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 22:07:42,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 22:07:42,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 22:07:42,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 22:07:42,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 22:07:42,216 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-21 22:07:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-21 22:07:42,223 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:07:42,224 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] [2020-08-21 22:07:42,224 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:07:42,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:07:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-08-21 22:07:42,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:07:42,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450273869] [2020-08-21 22:07:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:07:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:07:42,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 22:07:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:07:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 22:07:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:07:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-21 22:07:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 22:07:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 22:07:42,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450273869] [2020-08-21 22:07:42,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 22:07:42,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 22:07:42,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547936821] [2020-08-21 22:07:42,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 22:07:42,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 22:07:42,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 22:07:42,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 22:07:42,504 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-08-21 22:07:42,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 22:07:42,751 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-08-21 22:07:42,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 22:07:42,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-21 22:07:42,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 22:07:42,773 INFO L225 Difference]: With dead ends: 86 [2020-08-21 22:07:42,774 INFO L226 Difference]: Without dead ends: 43 [2020-08-21 22:07:42,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 22:07:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-21 22:07:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-21 22:07:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-21 22:07:42,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-08-21 22:07:42,839 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-08-21 22:07:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 22:07:42,839 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-08-21 22:07:42,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 22:07:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-08-21 22:07:42,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-21 22:07:42,843 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 22:07:42,844 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] [2020-08-21 22:07:42,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 22:07:42,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 22:07:42,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 22:07:42,846 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-08-21 22:07:42,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 22:07:42,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377621080] [2020-08-21 22:07:42,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 22:07:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 22:07:42,955 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 22:07:42,957 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 22:07:42,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 22:07:42,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 10:07:42 BoogieIcfgContainer [2020-08-21 22:07:42,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 22:07:42,981 INFO L168 Benchmark]: Toolchain (without parser) took 1798.59 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 101.9 MB in the beginning and 106.1 MB in the end (delta: -4.2 MB). Peak memory consumption was 57.7 MB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,982 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.23 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 101.7 MB in the beginning and 179.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,984 INFO L168 Benchmark]: Boogie Preprocessor took 46.19 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 176.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,985 INFO L168 Benchmark]: RCFGBuilder took 438.61 ms. Allocated memory is still 201.3 MB. Free memory was 176.6 MB in the beginning and 154.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,986 INFO L168 Benchmark]: TraceAbstraction took 886.93 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 106.1 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2020-08-21 22:07:42,991 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 420.23 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 101.7 MB in the beginning and 179.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.19 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 176.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 438.61 ms. Allocated memory is still 201.3 MB. Free memory was 176.6 MB in the beginning and 154.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 886.93 ms. Allocated memory is still 201.3 MB. Free memory was 154.0 MB in the beginning and 106.1 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L88] double x = 0.0 / 0.0; [L89] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND TRUE j0 < 20 [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; [L89] RET, EXPR floor_double(x) [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) [L80] return x != x; [L92] RET, EXPR isnan_double(res) [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...