/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=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 19:26:59,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 19:26:59,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 19:26:59,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 19:26:59,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 19:26:59,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 19:26:59,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 19:26:59,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 19:26:59,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 19:26:59,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 19:26:59,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 19:26:59,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 19:26:59,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 19:26:59,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 19:26:59,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 19:26:59,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 19:26:59,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 19:26:59,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 19:26:59,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 19:26:59,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 19:26:59,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 19:26:59,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 19:26:59,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 19:26:59,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 19:26:59,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 19:26:59,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 19:26:59,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 19:26:59,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 19:26:59,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 19:26:59,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-18 19:26:59,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:26:59,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:26:59,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:26:59,763 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 19:26:59,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:26:59,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:26:59,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:26:59,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:26:59,816 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:26:59,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:26:59,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:26:59,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:26:59,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:26:59,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:26:59,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:26:59,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:26:59,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:26:59,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:26:59,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:26:59,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:26:59,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:26:59,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:26:59,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:26:59,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:26:59,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:26:59,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:26:59,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:26:59,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:26:59,821 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=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:27:00,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:27:00,180 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:27:00,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:27:00,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:27:00,188 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:27:00,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-18 19:27:00,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531895f9/b8dc4b19d5c6420d8668a97a541f4650/FLAG92c2e5198 [2020-08-18 19:27:00,780 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:27:00,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-18 19:27:00,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531895f9/b8dc4b19d5c6420d8668a97a541f4650/FLAG92c2e5198 [2020-08-18 19:27:01,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f531895f9/b8dc4b19d5c6420d8668a97a541f4650 [2020-08-18 19:27:01,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:27:01,150 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:27:01,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:27:01,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:27:01,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:27:01,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@202a755b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01, skipping insertion in model container [2020-08-18 19:27:01,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:27:01,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:27:01,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:27:01,423 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:27:01,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:27:01,576 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:27:01,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01 WrapperNode [2020-08-18 19:27:01,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:27:01,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:27:01,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:27:01,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:27:01,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (1/1) ... [2020-08-18 19:27:01,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:27:01,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:27:01,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:27:01,637 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:27:01,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (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 19:27:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:27:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:27:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-18 19:27:01,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-18 19:27:01,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-18 19:27:01,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:27:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:27:01,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 19:27:01,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:27:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-18 19:27:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:27:02,298 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:27:02,298 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-18 19:27:02,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:27:02 BoogieIcfgContainer [2020-08-18 19:27:02,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:27:02,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:27:02,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:27:02,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:27:02,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:27:01" (1/3) ... [2020-08-18 19:27:02,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e653e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:27:02, skipping insertion in model container [2020-08-18 19:27:02,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:27:01" (2/3) ... [2020-08-18 19:27:02,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e653e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:27:02, skipping insertion in model container [2020-08-18 19:27:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:27:02" (3/3) ... [2020-08-18 19:27:02,312 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-08-18 19:27:02,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:27:02,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:27:02,347 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:27:02,369 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:27:02,369 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:27:02,370 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:27:02,370 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:27:02,370 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:27:02,371 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:27:02,371 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:27:02,371 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:27:02,393 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-08-18 19:27:02,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-18 19:27:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:27:02,402 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 19:27:02,402 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:27:02,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:27:02,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-08-18 19:27:02,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:27:02,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546961766] [2020-08-18 19:27:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:27:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:27:02,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:27:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:27:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:27:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:27:02,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-18 19:27:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:27:02,699 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 19:27:02,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546961766] [2020-08-18 19:27:02,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:27:02,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 19:27:02,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536105346] [2020-08-18 19:27:02,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 19:27:02,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:27:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 19:27:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 19:27:02,719 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-08-18 19:27:03,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:27:03,060 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-08-18 19:27:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 19:27:03,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-08-18 19:27:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:27:03,074 INFO L225 Difference]: With dead ends: 138 [2020-08-18 19:27:03,074 INFO L226 Difference]: Without dead ends: 68 [2020-08-18 19:27:03,078 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 19:27:03,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-18 19:27:03,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-08-18 19:27:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-08-18 19:27:03,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-08-18 19:27:03,132 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-08-18 19:27:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:27:03,132 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-08-18 19:27:03,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 19:27:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-08-18 19:27:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-08-18 19:27:03,134 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:27:03,134 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 19:27:03,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:27:03,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:27:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:27:03,136 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-08-18 19:27:03,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:27:03,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544306849] [2020-08-18 19:27:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:27:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 19:27:03,248 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 19:27:03,248 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 19:27:03,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:27:03,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:27:03 BoogieIcfgContainer [2020-08-18 19:27:03,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 19:27:03,279 INFO L168 Benchmark]: Toolchain (without parser) took 2128.85 ms. Allocated memory was 141.0 MB in the beginning and 235.4 MB in the end (delta: 94.4 MB). Free memory was 103.6 MB in the beginning and 189.2 MB in the end (delta: -85.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:27:03,280 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-18 19:27:03,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.57 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 103.6 MB in the beginning and 178.9 MB in the end (delta: -75.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-08-18 19:27:03,282 INFO L168 Benchmark]: Boogie Preprocessor took 59.69 ms. Allocated memory is still 203.4 MB. Free memory was 178.9 MB in the beginning and 176.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-08-18 19:27:03,283 INFO L168 Benchmark]: RCFGBuilder took 666.73 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 139.3 MB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2020-08-18 19:27:03,284 INFO L168 Benchmark]: TraceAbstraction took 971.60 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 139.3 MB in the beginning and 189.2 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 19:27:03,288 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 425.57 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 103.6 MB in the beginning and 178.9 MB in the end (delta: -75.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.69 ms. Allocated memory is still 203.4 MB. Free memory was 178.9 MB in the beginning and 176.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 666.73 ms. Allocated memory is still 203.4 MB. Free memory was 176.0 MB in the beginning and 139.3 MB in the end (delta: 36.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 971.60 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 139.3 MB in the beginning and 189.2 MB in the end (delta: -49.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: 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 someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] 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); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 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: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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...