/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_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 13:13:54,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:13:54,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:13:54,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:13:54,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:13:54,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:13:54,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:13:54,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:13:54,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:13:54,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:13:54,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:13:54,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:13:54,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:13:54,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:13:54,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:13:54,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:13:54,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:13:54,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:13:54,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:13:54,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:13:54,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:13:54,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:13:54,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:13:54,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:13:54,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:13:54,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:13:54,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:13:54,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:13:54,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 13:13:54,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:13:54,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:13:54,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:13:54,734 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:13:54,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:13:54,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:13:54,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:13:54,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:13:54,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:13:54,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:13:54,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:13:54,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:13:54,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:13:54,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:13:54,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:13:54,741 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:13:54,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:13:54,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:13:54,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:13:54,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:13:54,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:13:54,743 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:13:54,743 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:13:55,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:13:55,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:13:55,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:13:55,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:13:55,067 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:13:55,068 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-07-17 13:13:55,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d238fc6/054e8b2c1e97449583b4ecb638794652/FLAG7e0481387 [2020-07-17 13:13:55,652 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:13:55,652 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1210.c [2020-07-17 13:13:55,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d238fc6/054e8b2c1e97449583b4ecb638794652/FLAG7e0481387 [2020-07-17 13:13:55,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39d238fc6/054e8b2c1e97449583b4ecb638794652 [2020-07-17 13:13:56,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:13:56,011 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:13:56,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:56,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:13:56,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:13:56,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:56,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dc3be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56, skipping insertion in model container [2020-07-17 13:13:56,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:56,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:13:56,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:13:56,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:56,272 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:13:56,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:56,415 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:13:56,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56 WrapperNode [2020-07-17 13:13:56,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:56,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:13:56,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:13:56,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:13:56,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (1/1) ... [2020-07-17 13:13:56,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:13:56,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:13:56,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:13:56,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:13:56,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (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 13:13:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:13:56,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:13:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-17 13:13:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2020-07-17 13:13:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:13:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:13:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-17 13:13:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2020-07-17 13:13:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:13:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 13:13:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:13:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:13:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:13:56,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 13:13:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:13:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:13:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:13:57,120 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:13:57,121 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-07-17 13:13:57,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:57 BoogieIcfgContainer [2020-07-17 13:13:57,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:13:57,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:13:57,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:13:57,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:13:57,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:13:55" (1/3) ... [2020-07-17 13:13:57,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5511ab94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:57, skipping insertion in model container [2020-07-17 13:13:57,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:56" (2/3) ... [2020-07-17 13:13:57,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5511ab94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:57, skipping insertion in model container [2020-07-17 13:13:57,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:57" (3/3) ... [2020-07-17 13:13:57,136 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-07-17 13:13:57,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:13:57,155 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:13:57,167 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:13:57,187 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:13:57,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:13:57,187 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:13:57,187 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:13:57,190 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:13:57,190 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:13:57,190 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:13:57,190 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:13:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-17 13:13:57,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-17 13:13:57,225 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:57,226 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] [2020-07-17 13:13:57,226 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:57,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1596885088, now seen corresponding path program 1 times [2020-07-17 13:13:57,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:57,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086864672] [2020-07-17 13:13:57,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,488 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 13:13:57,571 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:57,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086864672] [2020-07-17 13:13:57,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:13:57,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 13:13:57,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559078191] [2020-07-17 13:13:57,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 13:13:57,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:13:57,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 13:13:57,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 13:13:57,602 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 7 states. [2020-07-17 13:13:58,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:13:58,194 INFO L93 Difference]: Finished difference Result 354 states and 409 transitions. [2020-07-17 13:13:58,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 13:13:58,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-07-17 13:13:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:13:58,212 INFO L225 Difference]: With dead ends: 354 [2020-07-17 13:13:58,212 INFO L226 Difference]: Without dead ends: 172 [2020-07-17 13:13:58,218 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-17 13:13:58,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-07-17 13:13:58,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-07-17 13:13:58,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-07-17 13:13:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 177 transitions. [2020-07-17 13:13:58,288 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 177 transitions. Word has length 42 [2020-07-17 13:13:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:13:58,288 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 177 transitions. [2020-07-17 13:13:58,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 13:13:58,289 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 177 transitions. [2020-07-17 13:13:58,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-17 13:13:58,294 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:58,294 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-07-17 13:13:58,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:13:58,295 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:58,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:58,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1985524025, now seen corresponding path program 1 times [2020-07-17 13:13:58,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:58,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524308473] [2020-07-17 13:13:58,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:58,565 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:58,565 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:13:58,565 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:13:58,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:13:58,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:13:58 BoogieIcfgContainer [2020-07-17 13:13:58,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:13:58,590 INFO L168 Benchmark]: Toolchain (without parser) took 2580.20 ms. Allocated memory was 144.7 MB in the beginning and 235.4 MB in the end (delta: 90.7 MB). Free memory was 102.2 MB in the beginning and 143.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 49.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,591 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.79 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 179.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,593 INFO L168 Benchmark]: Boogie Preprocessor took 55.12 ms. Allocated memory is still 202.4 MB. Free memory was 179.3 MB in the beginning and 176.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,594 INFO L168 Benchmark]: RCFGBuilder took 655.96 ms. Allocated memory is still 202.4 MB. Free memory was 176.7 MB in the beginning and 133.7 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,595 INFO L168 Benchmark]: TraceAbstraction took 1458.64 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 133.7 MB in the beginning and 143.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,599 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 403.79 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 179.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.12 ms. Allocated memory is still 202.4 MB. Free memory was 179.3 MB in the beginning and 176.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 655.96 ms. Allocated memory is still 202.4 MB. Free memory was 176.7 MB in the beginning and 133.7 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1458.64 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 133.7 MB in the beginning and 143.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; [L116] double x = 0.0 / 0.0; [L117] double iptr; [L118] CALL, EXPR modf_double(x, &iptr) [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L29] COND TRUE j0 < 20 [L30] COND TRUE j0 < 0 [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; [L118] RET, EXPR modf_double(x, &iptr) [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L121] CALL, EXPR isnan_double(iptr) [L15] return x != x; [L121] RET, EXPR isnan_double(iptr) [L121] isnan_double(iptr) && !isnan_double(res) [L121] CALL, EXPR isnan_double(res) [L15] return x != x; [L121] RET, EXPR isnan_double(res) [L121] isnan_double(iptr) && !isnan_double(res) [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 182 SDtfs, 37 SDslu, 263 SDs, 0 SdLazy, 279 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred 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...