/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:43:19,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:43:19,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:43:19,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:43:19,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:43:19,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:43:19,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:43:19,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:43:19,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:43:19,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:43:19,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:43:19,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:43:19,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:43:19,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:43:19,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:43:19,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:43:19,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:43:19,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:43:19,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:43:19,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:43:19,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:43:19,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:43:19,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:43:19,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:43:19,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 11:43:19,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:43:19,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:43:19,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:43:19,724 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:43:19,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:43:19,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:43:19,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:43:19,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:43:19,740 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:43:19,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:43:19,741 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:43:19,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:43:19,741 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:43:19,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:43:19,742 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:43:19,742 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:43:19,742 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:43:19,742 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:43:19,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:43:19,743 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:43:19,743 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:43:19,743 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:43:19,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:43:19,744 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:43:19,744 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:43:19,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:43:19,744 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:43:19,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:43:19,745 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:43:19,745 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:43:19,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:43:19,745 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:43:19,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:43:19,746 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:43:20,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:43:20,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:43:20,065 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:43:20,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:43:20,067 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:43:20,068 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-17 11:43:20,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a14edaf/5e9d1bb26dab443d8fa23d7b9349175a/FLAG7e862d855 [2020-07-17 11:43:20,596 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:43:20,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-07-17 11:43:20,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a14edaf/5e9d1bb26dab443d8fa23d7b9349175a/FLAG7e862d855 [2020-07-17 11:43:20,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a14edaf/5e9d1bb26dab443d8fa23d7b9349175a [2020-07-17 11:43:20,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:43:20,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:43:20,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:20,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:43:20,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:43:20,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:20" (1/1) ... [2020-07-17 11:43:21,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b297f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:20, skipping insertion in model container [2020-07-17 11:43:21,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:20" (1/1) ... [2020-07-17 11:43:21,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:43:21,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:43:21,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:21,269 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:43:21,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:21,442 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:43:21,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21 WrapperNode [2020-07-17 11:43:21,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:21,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:43:21,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:43:21,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:43:21,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:43:21,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:43:21,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:43:21,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:43:21,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-17 11:43:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:43:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:43:21,564 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-17 11:43:21,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-17 11:43:21,565 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 11:43:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:43:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:43:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 11:43:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:43:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-17 11:43:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:43:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:43:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-17 11:43:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:43:22,161 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:43:22,161 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-17 11:43:22,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:22 BoogieIcfgContainer [2020-07-17 11:43:22,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:43:22,168 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:43:22,168 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:43:22,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:43:22,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:43:20" (1/3) ... [2020-07-17 11:43:22,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d067429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:22, skipping insertion in model container [2020-07-17 11:43:22,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21" (2/3) ... [2020-07-17 11:43:22,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d067429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:22, skipping insertion in model container [2020-07-17 11:43:22,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:22" (3/3) ... [2020-07-17 11:43:22,179 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-07-17 11:43:22,189 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:43:22,198 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:43:22,211 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:43:22,236 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:43:22,236 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:43:22,236 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:43:22,236 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:43:22,237 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:43:22,237 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:43:22,237 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:43:22,237 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:43:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-17 11:43:22,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-17 11:43:22,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:22,269 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] [2020-07-17 11:43:22,269 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:22,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:22,274 INFO L82 PathProgramCache]: Analyzing trace with hash -759211570, now seen corresponding path program 1 times [2020-07-17 11:43:22,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:22,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655126417] [2020-07-17 11:43:22,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:43:22,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655126417] [2020-07-17 11:43:22,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:43:22,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:43:22,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838847460] [2020-07-17 11:43:22,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:43:22,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:43:22,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:43:22,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:43:22,616 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-17 11:43:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:43:22,961 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-17 11:43:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:43:22,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-17 11:43:22,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:43:22,974 INFO L225 Difference]: With dead ends: 138 [2020-07-17 11:43:22,975 INFO L226 Difference]: Without dead ends: 68 [2020-07-17 11:43:22,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:43:22,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-17 11:43:23,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-17 11:43:23,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-17 11:43:23,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-17 11:43:23,041 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-17 11:43:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:43:23,042 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-17 11:43:23,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:43:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-17 11:43:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-17 11:43:23,044 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:23,044 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] [2020-07-17 11:43:23,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:43:23,045 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:23,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:23,045 INFO L82 PathProgramCache]: Analyzing trace with hash -775583586, now seen corresponding path program 1 times [2020-07-17 11:43:23,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:23,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109578243] [2020-07-17 11:43:23,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:23,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:43:23,393 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:43:23,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:43:23,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:43:23 BoogieIcfgContainer [2020-07-17 11:43:23,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:43:23,439 INFO L168 Benchmark]: Toolchain (without parser) took 2447.44 ms. Allocated memory was 136.3 MB in the beginning and 230.2 MB in the end (delta: 93.8 MB). Free memory was 100.1 MB in the beginning and 178.7 MB in the end (delta: -78.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,440 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.02 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 175.4 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,443 INFO L168 Benchmark]: Boogie Preprocessor took 64.38 ms. Allocated memory is still 200.3 MB. Free memory was 175.4 MB in the beginning and 172.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,444 INFO L168 Benchmark]: RCFGBuilder took 659.18 ms. Allocated memory is still 200.3 MB. Free memory was 172.6 MB in the beginning and 136.2 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:23,445 INFO L168 Benchmark]: TraceAbstraction took 1268.04 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 136.2 MB in the beginning and 178.7 MB in the end (delta: -42.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 11:43:23,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 450.02 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.7 MB in the beginning and 175.4 MB in the end (delta: -75.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.38 ms. Allocated memory is still 200.3 MB. Free memory was 175.4 MB in the beginning and 172.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 659.18 ms. Allocated memory is still 200.3 MB. Free memory was 172.6 MB in the beginning and 136.2 MB in the end (delta: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1268.04 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 136.2 MB in the beginning and 178.7 MB in the end (delta: -42.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243602, \old(Zero_fmod)=9223372034706243599, \old(Zero_fmod)=9223372034706243590, one_fmod=1, Zero_fmod={3:0}] [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L180] CALL isfinite_double(x) VAL [\old(x)=9223372034706243588, one_fmod=1, Zero_fmod={3:0}] [L161] __int32_t hx; VAL [\old(x)=9223372034706243588, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243588, \result=6, hx=0, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L180] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, Zero_fmod={3:0}] [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, hx=2146435072, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L182] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243589, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L186] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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...