/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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 17:02:03,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:02:03,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:02:03,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:02:03,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:02:03,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:02:03,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:02:03,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:02:03,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:02:03,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:02:03,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:02:03,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:02:03,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:02:03,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:02:03,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:02:03,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:02:03,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:02:03,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:02:03,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:02:03,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:02:03,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:02:03,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:02:03,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:02:03,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:02:03,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 17:02:03,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:02:03,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:02:03,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:02:03,126 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 17:02:03,164 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:02:03,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:02:03,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:02:03,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:02:03,167 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:02:03,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:02:03,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 17:02:03,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:02:03,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 17:02:03,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:02:03,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:02:03,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:02:03,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:02:03,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 17:02:03,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:02:03,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:02:03,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:02:03,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:02:03,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:02:03,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:02:03,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:02:03,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:02:03,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:02:03,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:02:03,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:02:03,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:02:03,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:02:03,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:02:03,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:02:03,172 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 17:02:03,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:02:03,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:02:03,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:02:03,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:02:03,469 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:02:03,470 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-18 17:02:03,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c135098d8/453e7747b3fa43178b6d628da6b4ae8f/FLAGe3501191e [2020-08-18 17:02:03,992 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:02:03,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-08-18 17:02:04,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c135098d8/453e7747b3fa43178b6d628da6b4ae8f/FLAGe3501191e [2020-08-18 17:02:04,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c135098d8/453e7747b3fa43178b6d628da6b4ae8f [2020-08-18 17:02:04,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:02:04,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:02:04,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:02:04,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:02:04,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:02:04,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c53af82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04, skipping insertion in model container [2020-08-18 17:02:04,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:02:04,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:02:04,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:02:04,646 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:02:04,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:02:04,790 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:02:04,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04 WrapperNode [2020-08-18 17:02:04,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:02:04,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:02:04,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:02:04,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:02:04,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (1/1) ... [2020-08-18 17:02:04,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:02:04,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:02:04,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:02:04,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:02:04,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (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 17:02:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:02:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:02:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-18 17:02:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-18 17:02:04,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-18 17:02:04,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:02:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:02:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-18 17:02:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-18 17:02:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-18 17:02:04,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-18 17:02:04,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:02:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:02:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-18 17:02:04,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:02:05,483 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:02:05,483 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-18 17:02:05,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:02:05 BoogieIcfgContainer [2020-08-18 17:02:05,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:02:05,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:02:05,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:02:05,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:02:05,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:02:04" (1/3) ... [2020-08-18 17:02:05,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ca9362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:02:05, skipping insertion in model container [2020-08-18 17:02:05,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:02:04" (2/3) ... [2020-08-18 17:02:05,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ca9362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:02:05, skipping insertion in model container [2020-08-18 17:02:05,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:02:05" (3/3) ... [2020-08-18 17:02:05,504 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-08-18 17:02:05,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:02:05,521 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:02:05,532 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:02:05,554 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:02:05,554 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:02:05,554 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:02:05,555 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:02:05,555 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:02:05,555 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:02:05,555 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:02:05,556 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:02:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-08-18 17:02:05,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-18 17:02:05,582 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:02:05,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:02:05,583 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:02:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:02:05,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1999170223, now seen corresponding path program 1 times [2020-08-18 17:02:05,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:02:05,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306092707] [2020-08-18 17:02:05,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:02:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:02:05,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:02:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:02:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 17:02:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:02:05,828 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 17:02:05,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306092707] [2020-08-18 17:02:05,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:02:05,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 17:02:05,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465694238] [2020-08-18 17:02:05,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 17:02:05,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:02:05,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 17:02:05,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 17:02:05,857 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 4 states. [2020-08-18 17:02:06,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:02:06,213 INFO L93 Difference]: Finished difference Result 142 states and 232 transitions. [2020-08-18 17:02:06,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 17:02:06,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-08-18 17:02:06,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:02:06,226 INFO L225 Difference]: With dead ends: 142 [2020-08-18 17:02:06,226 INFO L226 Difference]: Without dead ends: 69 [2020-08-18 17:02:06,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 17:02:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-08-18 17:02:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-08-18 17:02:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-08-18 17:02:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2020-08-18 17:02:06,278 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 96 transitions. Word has length 19 [2020-08-18 17:02:06,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:02:06,279 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 96 transitions. [2020-08-18 17:02:06,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 17:02:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2020-08-18 17:02:06,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-08-18 17:02:06,281 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:02:06,281 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] [2020-08-18 17:02:06,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:02:06,281 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:02:06,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:02:06,282 INFO L82 PathProgramCache]: Analyzing trace with hash -656970196, now seen corresponding path program 1 times [2020-08-18 17:02:06,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:02:06,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1591230034] [2020-08-18 17:02:06,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:02:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 17:02:06,367 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 17:02:06,368 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 17:02:06,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:02:06,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 05:02:06 BoogieIcfgContainer [2020-08-18 17:02:06,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 17:02:06,393 INFO L168 Benchmark]: Toolchain (without parser) took 2025.44 ms. Allocated memory was 140.5 MB in the beginning and 235.9 MB in the end (delta: 95.4 MB). Free memory was 103.8 MB in the beginning and 193.5 MB in the end (delta: -89.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-08-18 17:02:06,393 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 17:02:06,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.52 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 178.2 MB in the end (delta: -74.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-08-18 17:02:06,395 INFO L168 Benchmark]: Boogie Preprocessor took 58.92 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-18 17:02:06,396 INFO L168 Benchmark]: RCFGBuilder took 637.91 ms. Allocated memory is still 202.9 MB. Free memory was 175.6 MB in the beginning and 139.1 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-08-18 17:02:06,397 INFO L168 Benchmark]: TraceAbstraction took 897.67 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.5 MB in the beginning and 193.5 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 17:02:06,401 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 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 423.52 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 178.2 MB in the end (delta: -74.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.92 ms. Allocated memory is still 202.9 MB. Free memory was 178.2 MB in the beginning and 175.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 637.91 ms. Allocated memory is still 202.9 MB. Free memory was 175.6 MB in the beginning and 139.1 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 897.67 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 138.5 MB in the beginning and 193.5 MB in the end (delta: -55.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L187] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 99 SDtfs, 14 SDslu, 85 SDs, 0 SdLazy, 104 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 918 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...