/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 -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 0.1.25-5644d1e-m [2020-08-19 03:31:37,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:31:37,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:31:37,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:31:37,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:31:37,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:31:37,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:31:37,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:31:37,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:31:37,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:31:37,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:31:37,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:31:37,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:31:37,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:31:37,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:31:37,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:31:37,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:31:37,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:31:37,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:31:37,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:31:37,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:31:37,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:31:37,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:31:37,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:31:37,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 03:31:37,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:31:37,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:31:37,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:31:37,417 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 [2020-08-19 03:31:37,441 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:31:37,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:31:37,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:31:37,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:31:37,443 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:31:37,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:31:37,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:31:37,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:31:37,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:31:37,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:31:37,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:31:37,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:31:37,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:31:37,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:31:37,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:31:37,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:31:37,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:31:37,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:31:37,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:31:37,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:31:37,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:31:37,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:31:37,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:31:37,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:31:37,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:31:37,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:31:37,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:31:37,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:31:37,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:31:37,448 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=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:31:37,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:31:37,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:31:37,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:31:37,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:31:37,800 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:31:37,801 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-19 03:31:37,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39e00b7d1/ee51a394744a477c94008137a50849dc/FLAGf9c148801 [2020-08-19 03:31:38,343 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:31:38,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-08-19 03:31:38,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39e00b7d1/ee51a394744a477c94008137a50849dc/FLAGf9c148801 [2020-08-19 03:31:38,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/39e00b7d1/ee51a394744a477c94008137a50849dc [2020-08-19 03:31:38,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:31:38,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:31:38,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:31:38,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:31:38,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:31:38,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:31:38" (1/1) ... [2020-08-19 03:31:38,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2f3aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:38, skipping insertion in model container [2020-08-19 03:31:38,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:31:38" (1/1) ... [2020-08-19 03:31:38,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:31:38,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:31:38,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:31:38,986 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:31:39,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:31:39,122 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:31:39,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39 WrapperNode [2020-08-19 03:31:39,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:31:39,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:31:39,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:31:39,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:31:39,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (1/1) ... [2020-08-19 03:31:39,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:31:39,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:31:39,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:31:39,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:31:39,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (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 [2020-08-19 03:31:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:31:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:31:39,237 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-08-19 03:31:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-19 03:31:39,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:31:39,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:31:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-08-19 03:31:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-19 03:31:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-19 03:31:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-19 03:31:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:31:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:31:39,671 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:31:39,671 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-19 03:31:39,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:31:39 BoogieIcfgContainer [2020-08-19 03:31:39,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:31:39,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:31:39,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:31:39,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:31:39,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:31:38" (1/3) ... [2020-08-19 03:31:39,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c588f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:31:39, skipping insertion in model container [2020-08-19 03:31:39,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:31:39" (2/3) ... [2020-08-19 03:31:39,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c588f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:31:39, skipping insertion in model container [2020-08-19 03:31:39,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:31:39" (3/3) ... [2020-08-19 03:31:39,683 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-08-19 03:31:39,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:31:39,701 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:31:39,715 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:31:39,738 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:31:39,738 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:31:39,738 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:31:39,738 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:31:39,738 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:31:39,739 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:31:39,739 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:31:39,739 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:31:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-08-19 03:31:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-19 03:31:39,762 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:39,763 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] [2020-08-19 03:31:39,764 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:39,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-08-19 03:31:39,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:39,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000933555] [2020-08-19 03:31:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:39,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:31:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:39,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:31:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:39,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-19 03:31:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:31:40,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 03:31:40,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000933555] [2020-08-19 03:31:40,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:31:40,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-19 03:31:40,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550835506] [2020-08-19 03:31:40,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-19 03:31:40,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:31:40,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-19 03:31:40,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-19 03:31:40,029 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-08-19 03:31:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:31:40,288 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-08-19 03:31:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-19 03:31:40,291 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-19 03:31:40,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:31:40,303 INFO L225 Difference]: With dead ends: 86 [2020-08-19 03:31:40,303 INFO L226 Difference]: Without dead ends: 43 [2020-08-19 03:31:40,307 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 [2020-08-19 03:31:40,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-08-19 03:31:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-08-19 03:31:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-19 03:31:40,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-08-19 03:31:40,353 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-08-19 03:31:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:31:40,354 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-08-19 03:31:40,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-19 03:31:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-08-19 03:31:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-08-19 03:31:40,355 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:31:40,355 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] [2020-08-19 03:31:40,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:31:40,356 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:31:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:31:40,357 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-08-19 03:31:40,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:31:40,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323022187] [2020-08-19 03:31:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:31:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 03:31:40,438 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 03:31:40,438 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 03:31:40,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:31:40,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 03:31:40 BoogieIcfgContainer [2020-08-19 03:31:40,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 03:31:40,468 INFO L168 Benchmark]: Toolchain (without parser) took 1725.12 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 108.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 56.7 MB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,469 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.83 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 180.8 MB in the end (delta: -78.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,471 INFO L168 Benchmark]: Boogie Preprocessor took 48.90 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,472 INFO L168 Benchmark]: RCFGBuilder took 501.83 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 156.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,473 INFO L168 Benchmark]: TraceAbstraction took 787.55 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 108.7 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2020-08-19 03:31:40,477 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 380.83 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 180.8 MB in the end (delta: -78.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.90 ms. Allocated memory is still 202.9 MB. Free memory was 180.8 MB in the beginning and 178.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 501.83 ms. Allocated memory is still 202.9 MB. Free memory was 178.8 MB in the beginning and 156.3 MB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 787.55 ms. Allocated memory is still 202.9 MB. Free memory was 156.3 MB in the beginning and 108.7 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 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...