/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:55:25,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:55:25,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:55:25,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:55:25,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:55:25,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:55:25,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:55:25,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:55:25,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:55:25,528 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:55:25,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:55:25,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:55:25,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:55:25,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:55:25,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:55:25,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:55:25,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:55:25,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:55:25,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:55:25,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:55:25,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:55:25,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:55:25,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:55:25,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:55:25,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 10:55:25,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:55:25,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:55:25,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:55:25,555 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 [2020-07-07 10:55:25,577 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:55:25,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:55:25,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:55:25,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:55:25,580 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:55:25,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:55:25,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:55:25,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:55:25,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:55:25,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:55:25,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:55:25,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:55:25,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:55:25,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:55:25,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:55:25,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:55:25,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:55:25,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:55:25,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:55:25,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:55:25,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:55:25,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:55:25,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:55:25,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:55:25,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:55:25,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:55:25,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:55:25,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:55:25,868 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:55:25,868 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:55:25,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-07 10:55:25,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6de08cbd/3af49d3a907c4a39ac28e161c1b19ff1/FLAGd735843e6 [2020-07-07 10:55:26,438 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:55:26,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-07 10:55:26,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6de08cbd/3af49d3a907c4a39ac28e161c1b19ff1/FLAGd735843e6 [2020-07-07 10:55:26,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6de08cbd/3af49d3a907c4a39ac28e161c1b19ff1 [2020-07-07 10:55:26,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:55:26,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:55:26,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:26,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:55:26,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:55:26,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ba4a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:26, skipping insertion in model container [2020-07-07 10:55:26,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:55:26" (1/1) ... [2020-07-07 10:55:26,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:55:26,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:55:27,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:27,231 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:55:27,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:55:27,325 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:55:27,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27 WrapperNode [2020-07-07 10:55:27,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:55:27,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:55:27,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:55:27,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:55:27,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (1/1) ... [2020-07-07 10:55:27,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:55:27,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:55:27,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:55:27,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:55:27,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (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 [2020-07-07 10:55:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:55:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:55:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 10:55:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-07 10:55:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-07 10:55:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:55:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:55:27,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:55:27,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:55:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 10:55:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:55:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-07 10:55:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:55:27,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:55:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-07 10:55:27,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:55:28,105 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:55:28,106 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-07 10:55:28,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:28 BoogieIcfgContainer [2020-07-07 10:55:28,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:55:28,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:55:28,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:55:28,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:55:28,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:55:26" (1/3) ... [2020-07-07 10:55:28,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172f02a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:28, skipping insertion in model container [2020-07-07 10:55:28,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:55:27" (2/3) ... [2020-07-07 10:55:28,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172f02a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:55:28, skipping insertion in model container [2020-07-07 10:55:28,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:55:28" (3/3) ... [2020-07-07 10:55:28,123 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-07 10:55:28,132 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:55:28,139 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:55:28,152 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:55:28,175 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:55:28,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:55:28,175 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:55:28,176 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:55:28,176 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:55:28,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:55:28,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:55:28,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:55:28,194 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-07 10:55:28,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 10:55:28,201 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:28,203 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] [2020-07-07 10:55:28,203 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:28,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-07 10:55:28,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:28,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843579382] [2020-07-07 10:55:28,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:55:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:55:28,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843579382] [2020-07-07 10:55:28,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:55:28,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:55:28,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434256714] [2020-07-07 10:55:28,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:55:28,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:55:28,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:55:28,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:55:28,532 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-07 10:55:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:55:28,885 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-07 10:55:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:55:28,887 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-07 10:55:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:55:28,902 INFO L225 Difference]: With dead ends: 138 [2020-07-07 10:55:28,902 INFO L226 Difference]: Without dead ends: 68 [2020-07-07 10:55:28,907 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 [2020-07-07 10:55:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-07 10:55:28,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-07 10:55:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-07 10:55:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-07 10:55:28,976 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-07 10:55:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:55:28,977 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-07 10:55:28,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:55:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-07 10:55:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-07 10:55:28,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:55:28,980 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] [2020-07-07 10:55:28,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:55:28,981 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:55:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:55:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-07 10:55:28,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:55:28,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355297533] [2020-07-07 10:55:28,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:55:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:55:29,388 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:55:29,388 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:55:29,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:55:29,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:55:29 BoogieIcfgContainer [2020-07-07 10:55:29,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:55:29,472 INFO L168 Benchmark]: Toolchain (without parser) took 2623.23 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 101.2 MB in the beginning and 179.2 MB in the end (delta: -78.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,473 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 10:55:29,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.28 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 176.1 MB in the end (delta: -75.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,477 INFO L168 Benchmark]: Boogie Preprocessor took 58.31 ms. Allocated memory is still 201.3 MB. Free memory was 176.1 MB in the beginning and 173.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,477 INFO L168 Benchmark]: RCFGBuilder took 727.68 ms. Allocated memory is still 201.3 MB. Free memory was 173.2 MB in the beginning and 137.3 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:55:29,479 INFO L168 Benchmark]: TraceAbstraction took 1354.93 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 136.3 MB in the beginning and 179.2 MB in the end (delta: -42.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 10:55:29,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 137.9 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 477.28 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 176.1 MB in the end (delta: -75.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.31 ms. Allocated memory is still 201.3 MB. Free memory was 176.1 MB in the beginning and 173.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 727.68 ms. Allocated memory is still 201.3 MB. Free memory was 173.2 MB in the beginning and 137.3 MB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1354.93 ms. Allocated memory was 201.3 MB in the beginning and 233.8 MB in the end (delta: 32.5 MB). Free memory was 136.3 MB in the beginning and 179.2 MB in the end (delta: -42.9 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, }; VAL [\old(one_fmod)=9223372034706243602, \old(Zero_fmod)=9223372034706243590, \old(Zero_fmod)=9223372034706243599, one_fmod=1, Zero_fmod={3:0}] [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) VAL [\old(x)=9223372034706243588, one_fmod=1, Zero_fmod={3:0}] [L164] __int32_t hx; VAL [\old(x)=9223372034706243588, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [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); VAL [\old(x)=9223372034706243588, \result=6, hx=0, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [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 VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] 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}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243589, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s 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...