/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:01:03,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:01:03,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:01:03,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:01:03,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:01:03,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:01:03,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:01:03,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:01:03,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:01:03,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:01:03,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:01:03,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:01:03,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:01:03,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:01:03,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:01:03,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:01:03,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:01:03,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:01:03,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:01:03,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:01:03,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:01:03,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:01:03,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:01:03,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:01:03,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:01:03,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:01:03,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:01:03,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:01:03,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:01:03,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:01:03,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:01:03,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:01:03,612 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:01:03,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:01:03,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:01:03,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:01:03,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:01:03,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:01:03,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:01:03,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:01:03,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:01:03,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:01:03,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:01:03,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:01:03,618 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:01:03,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:01:03,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:01:03,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:01:03,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:01:03,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:01:03,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:01:03,621 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:01:03,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:01:03,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:01:03,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:01:03,935 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:01:03,936 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:01:03,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2020-07-07 13:01:04,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4edd63ef/9129daa72a4247cb98a1d13ddd5f8eb2/FLAG8ff5b930d [2020-07-07 13:01:04,444 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:01:04,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1072d.c [2020-07-07 13:01:04,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4edd63ef/9129daa72a4247cb98a1d13ddd5f8eb2/FLAG8ff5b930d [2020-07-07 13:01:04,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4edd63ef/9129daa72a4247cb98a1d13ddd5f8eb2 [2020-07-07 13:01:04,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:01:04,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:01:04,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:04,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:01:04,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:01:04,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:04" (1/1) ... [2020-07-07 13:01:04,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc065d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:04, skipping insertion in model container [2020-07-07 13:01:04,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:04" (1/1) ... [2020-07-07 13:01:04,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:01:04,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:01:05,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:05,113 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:01:05,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:05,277 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:01:05,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05 WrapperNode [2020-07-07 13:01:05,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:05,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:01:05,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:01:05,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:01:05,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (1/1) ... [2020-07-07 13:01:05,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:01:05,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:01:05,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:01:05,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:01:05,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (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 13:01:05,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:01:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:01:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:01:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2020-07-07 13:01:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-07-07 13:01:05,457 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:01:05,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:01:05,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:01:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:01:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:01:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-07-07 13:01:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:01:05,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:01:05,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:01:05,948 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:01:05,948 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-07 13:01:05,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:05 BoogieIcfgContainer [2020-07-07 13:01:05,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:01:05,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:01:05,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:01:05,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:01:05,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:01:04" (1/3) ... [2020-07-07 13:01:05,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fbb867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:05, skipping insertion in model container [2020-07-07 13:01:05,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:05" (2/3) ... [2020-07-07 13:01:05,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fbb867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:05, skipping insertion in model container [2020-07-07 13:01:05,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:05" (3/3) ... [2020-07-07 13:01:05,964 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d.c [2020-07-07 13:01:05,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:01:05,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:01:05,994 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:01:06,016 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:01:06,017 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:01:06,017 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:01:06,017 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:01:06,017 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:01:06,017 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:01:06,018 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:01:06,018 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:01:06,037 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-07-07 13:01:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 13:01:06,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:06,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:01:06,052 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:06,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:06,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1396348261, now seen corresponding path program 1 times [2020-07-07 13:01:06,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:06,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61674899] [2020-07-07 13:01:06,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:06,289 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 13:01:06,290 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:06,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61674899] [2020-07-07 13:01:06,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:06,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:01:06,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569683256] [2020-07-07 13:01:06,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:01:06,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:06,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:01:06,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:01:06,319 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2020-07-07 13:01:06,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:06,691 INFO L93 Difference]: Finished difference Result 213 states and 242 transitions. [2020-07-07 13:01:06,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:01:06,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-07-07 13:01:06,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:06,707 INFO L225 Difference]: With dead ends: 213 [2020-07-07 13:01:06,707 INFO L226 Difference]: Without dead ends: 107 [2020-07-07 13:01:06,712 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 13:01:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-07 13:01:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-07-07 13:01:06,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-07 13:01:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 110 transitions. [2020-07-07 13:01:06,768 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 110 transitions. Word has length 40 [2020-07-07 13:01:06,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:06,769 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 110 transitions. [2020-07-07 13:01:06,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:01:06,770 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 110 transitions. [2020-07-07 13:01:06,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-07 13:01:06,773 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:06,773 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:01:06,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:01:06,774 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:06,775 INFO L82 PathProgramCache]: Analyzing trace with hash -247930506, now seen corresponding path program 1 times [2020-07-07 13:01:06,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:06,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224821103] [2020-07-07 13:01:06,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:07,152 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:07,152 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:01:07,153 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:01:07,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:01:07,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:01:07 BoogieIcfgContainer [2020-07-07 13:01:07,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:01:07,202 INFO L168 Benchmark]: Toolchain (without parser) took 2325.67 ms. Allocated memory was 142.6 MB in the beginning and 233.8 MB in the end (delta: 91.2 MB). Free memory was 102.1 MB in the beginning and 185.7 MB in the end (delta: -83.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:07,203 INFO L168 Benchmark]: CDTParser took 0.84 ms. Allocated memory is still 142.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:01:07,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 101.9 MB in the beginning and 180.6 MB in the end (delta: -78.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:07,205 INFO L168 Benchmark]: Boogie Preprocessor took 93.82 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 178.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:07,206 INFO L168 Benchmark]: RCFGBuilder took 581.37 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 147.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:07,207 INFO L168 Benchmark]: TraceAbstraction took 1242.34 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 147.5 MB in the beginning and 185.7 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:01:07,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84 ms. Allocated memory is still 142.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 101.9 MB in the beginning and 180.6 MB in the end (delta: -78.7 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.82 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 178.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 581.37 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 147.5 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1242.34 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 147.5 MB in the beginning and 185.7 MB in the end (delta: -38.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 89]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 74, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L84] double x = -1.0 / 0.0; [L85] CALL, EXPR trunc_double(x) [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L85] RET, EXPR trunc_double(x) [L85] double res = trunc_double(x); [L88] CALL, EXPR isinf_double(res) [L64] __int32_t hx, lx; [L66] ieee_double_shape_type ew_u; [L67] ew_u.value = (x) [L68] EXPR ew_u.parts.msw [L68] (hx) = ew_u.parts.msw [L69] EXPR ew_u.parts.lsw [L69] (lx) = ew_u.parts.lsw [L71] hx &= 0x7fffffff [L72] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L73] hx = 0x7ff00000 - hx [L74] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L88] RET, EXPR isinf_double(res) [L88] COND TRUE !isinf_double(res) [L89] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 19 SDslu, 69 SDs, 0 SdLazy, 139 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=114occurred 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: No data available, 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...