/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 12:05:41,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 12:05:41,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 12:05:41,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 12:05:41,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 12:05:41,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 12:05:41,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 12:05:41,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 12:05:41,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 12:05:41,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 12:05:41,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 12:05:41,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 12:05:41,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 12:05:41,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 12:05:41,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 12:05:41,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 12:05:41,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 12:05:41,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 12:05:41,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 12:05:41,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 12:05:41,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 12:05:41,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 12:05:41,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 12:05:41,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 12:05:41,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 12:05:41,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 12:05:41,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 12:05:41,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 12:05:41,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 12:05:41,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-18 12:05:41,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 12:05:41,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 12:05:41,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 12:05:41,522 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 [2020-08-18 12:05:41,560 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 12:05:41,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 12:05:41,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 12:05:41,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 12:05:41,563 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 12:05:41,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 12:05:41,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 12:05:41,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 12:05:41,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 12:05:41,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 12:05:41,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 12:05:41,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 12:05:41,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 12:05:41,566 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 12:05:41,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 12:05:41,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 12:05:41,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 12:05:41,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 12:05:41,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 12:05:41,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 12:05:41,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 12:05:41,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 12:05:41,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 12:05:41,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 12:05:41,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 12:05:41,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 12:05:41,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 12:05:41,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 12:05:41,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 12:05:41,570 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=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 12:05:41,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 12:05:41,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 12:05:41,890 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 12:05:41,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 12:05:41,894 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 12:05:41,895 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-18 12:05:41,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870dcf1be/75bc5f11a42042ab8aa7240a35096d30/FLAG9bbfafb40 [2020-08-18 12:05:42,476 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 12:05:42,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-18 12:05:42,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870dcf1be/75bc5f11a42042ab8aa7240a35096d30/FLAG9bbfafb40 [2020-08-18 12:05:42,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/870dcf1be/75bc5f11a42042ab8aa7240a35096d30 [2020-08-18 12:05:42,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 12:05:42,856 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 12:05:42,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 12:05:42,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 12:05:42,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 12:05:42,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:05:42" (1/1) ... [2020-08-18 12:05:42,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec48d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:42, skipping insertion in model container [2020-08-18 12:05:42,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:05:42" (1/1) ... [2020-08-18 12:05:42,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 12:05:42,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 12:05:43,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:05:43,347 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 12:05:43,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 12:05:43,424 INFO L208 MainTranslator]: Completed translation [2020-08-18 12:05:43,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43 WrapperNode [2020-08-18 12:05:43,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 12:05:43,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 12:05:43,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 12:05:43,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 12:05:43,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (1/1) ... [2020-08-18 12:05:43,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 12:05:43,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 12:05:43,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 12:05:43,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 12:05:43,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (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 [2020-08-18 12:05:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 12:05:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 12:05:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-18 12:05:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-18 12:05:43,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 12:05:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 12:05:43,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-18 12:05:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 12:05:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-18 12:05:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 12:05:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 12:05:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-18 12:05:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 12:05:44,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 12:05:44,196 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-18 12:05:44,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:05:44 BoogieIcfgContainer [2020-08-18 12:05:44,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 12:05:44,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 12:05:44,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 12:05:44,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 12:05:44,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 12:05:42" (1/3) ... [2020-08-18 12:05:44,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cda26aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:05:44, skipping insertion in model container [2020-08-18 12:05:44,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:05:43" (2/3) ... [2020-08-18 12:05:44,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cda26aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 12:05:44, skipping insertion in model container [2020-08-18 12:05:44,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:05:44" (3/3) ... [2020-08-18 12:05:44,214 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-08-18 12:05:44,223 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 12:05:44,231 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 12:05:44,244 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 12:05:44,266 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 12:05:44,266 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 12:05:44,266 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 12:05:44,266 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 12:05:44,267 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 12:05:44,267 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 12:05:44,267 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 12:05:44,267 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 12:05:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-18 12:05:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-18 12:05:44,295 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:05:44,296 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] [2020-08-18 12:05:44,297 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:05:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:05:44,303 INFO L82 PathProgramCache]: Analyzing trace with hash -759211570, now seen corresponding path program 1 times [2020-08-18 12:05:44,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:05:44,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12558040] [2020-08-18 12:05:44,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:05:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 12:05:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 12:05:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 12:05:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 12:05:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 12:05:44,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12558040] [2020-08-18 12:05:44,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 12:05:44,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 12:05:44,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106387434] [2020-08-18 12:05:44,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 12:05:44,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 12:05:44,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 12:05:44,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 12:05:44,586 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-18 12:05:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 12:05:44,918 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-08-18 12:05:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 12:05:44,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-18 12:05:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 12:05:44,936 INFO L225 Difference]: With dead ends: 138 [2020-08-18 12:05:44,937 INFO L226 Difference]: Without dead ends: 68 [2020-08-18 12:05:44,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 12:05:44,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-18 12:05:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-18 12:05:45,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-18 12:05:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-08-18 12:05:45,009 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-08-18 12:05:45,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 12:05:45,010 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-08-18 12:05:45,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 12:05:45,010 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-08-18 12:05:45,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-18 12:05:45,013 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 12:05:45,013 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] [2020-08-18 12:05:45,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 12:05:45,014 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 12:05:45,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 12:05:45,015 INFO L82 PathProgramCache]: Analyzing trace with hash -775583586, now seen corresponding path program 1 times [2020-08-18 12:05:45,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 12:05:45,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762215627] [2020-08-18 12:05:45,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 12:05:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 12:05:45,156 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 12:05:45,157 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 12:05:45,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 12:05:45,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 12:05:45 BoogieIcfgContainer [2020-08-18 12:05:45,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 12:05:45,207 INFO L168 Benchmark]: Toolchain (without parser) took 2349.76 ms. Allocated memory was 139.5 MB in the beginning and 235.9 MB in the end (delta: 96.5 MB). Free memory was 102.2 MB in the beginning and 193.2 MB in the end (delta: -91.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,209 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 12:05:45,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.20 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.8 MB in the beginning and 176.6 MB in the end (delta: -74.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,212 INFO L168 Benchmark]: Boogie Preprocessor took 63.26 ms. Allocated memory is still 202.4 MB. Free memory was 176.6 MB in the beginning and 173.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,212 INFO L168 Benchmark]: RCFGBuilder took 716.04 ms. Allocated memory is still 202.4 MB. Free memory was 173.9 MB in the beginning and 138.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-08-18 12:05:45,214 INFO L168 Benchmark]: TraceAbstraction took 997.41 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 138.1 MB in the beginning and 193.2 MB in the end (delta: -55.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 12:05:45,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 568.20 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.8 MB in the beginning and 176.6 MB in the end (delta: -74.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.26 ms. Allocated memory is still 202.4 MB. Free memory was 176.6 MB in the beginning and 173.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 716.04 ms. Allocated memory is still 202.4 MB. Free memory was 173.9 MB in the beginning and 138.1 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 997.41 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 138.1 MB in the beginning and 193.2 MB in the end (delta: -55.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L180] CALL isfinite_double(x) [L161] __int32_t hx; [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L180] RET isfinite_double(x) [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); [L182] RET, EXPR fmod_double(x, y) [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x [L186] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 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...