/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:31:33,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:31:33,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:31:33,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 18:31:33,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:31:33,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:31:33,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:31:33,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:31:33,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:31:33,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:31:33,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:31:33,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:31:33,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:31:33,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:31:33,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:31:33,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:31:33,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:31:33,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:31:33,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:31:33,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:31:33,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:31:33,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:31:33,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:31:33,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:31:33,586 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:31:33,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:31:33,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:31:33,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:31:33,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:31:33,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:31:33,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:31:33,593 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:31:33,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:31:33,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:31:33,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:33,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:31:33,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:31:33,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:31:33,594 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:31:33,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:31:33,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:31:33,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:31:33,911 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:31:33,911 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:31:33,912 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-22 18:31:33,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af5d9c9/38c0c69ef2294be29568c0bca6959963/FLAGf10b762b8 [2020-08-22 18:31:34,453 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:31:34,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-08-22 18:31:34,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af5d9c9/38c0c69ef2294be29568c0bca6959963/FLAGf10b762b8 [2020-08-22 18:31:34,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af5d9c9/38c0c69ef2294be29568c0bca6959963 [2020-08-22 18:31:34,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:31:34,812 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:31:34,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:34,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:31:34,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:31:34,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:34" (1/1) ... [2020-08-22 18:31:34,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cde6145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:34, skipping insertion in model container [2020-08-22 18:31:34,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:34" (1/1) ... [2020-08-22 18:31:34,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:31:34,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:31:35,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:35,155 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:31:35,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:35,310 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:31:35,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35 WrapperNode [2020-08-22 18:31:35,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:35,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:31:35,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:31:35,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:31:35,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (1/1) ... [2020-08-22 18:31:35,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:31:35,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:31:35,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:31:35,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:31:35,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (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 [2020-08-22 18:31:35,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:31:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:31:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-08-22 18:31:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 18:31:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-22 18:31:35,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:31:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:31:35,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:31:35,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 18:31:35,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:31:36,083 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:31:36,083 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 18:31:36,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:36 BoogieIcfgContainer [2020-08-22 18:31:36,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:31:36,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:31:36,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:31:36,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:31:36,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:31:34" (1/3) ... [2020-08-22 18:31:36,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483656cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:36, skipping insertion in model container [2020-08-22 18:31:36,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:35" (2/3) ... [2020-08-22 18:31:36,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483656cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:36, skipping insertion in model container [2020-08-22 18:31:36,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:36" (3/3) ... [2020-08-22 18:31:36,099 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-08-22 18:31:36,110 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:31:36,118 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:31:36,133 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:31:36,157 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:31:36,157 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:31:36,157 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:31:36,157 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:31:36,158 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:31:36,158 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:31:36,158 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:31:36,158 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:31:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-22 18:31:36,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 18:31:36,192 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:36,194 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] [2020-08-22 18:31:36,194 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:36,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-08-22 18:31:36,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:36,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853051030] [2020-08-22 18:31:36,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:36,280 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:36,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:36,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:31:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:36,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 18:31:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:31:36,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853051030] [2020-08-22 18:31:36,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:36,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:31:36,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255971620] [2020-08-22 18:31:36,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:31:36,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:36,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:31:36,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:31:36,498 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-22 18:31:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:37,028 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-08-22 18:31:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:31:37,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-08-22 18:31:37,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:37,043 INFO L225 Difference]: With dead ends: 414 [2020-08-22 18:31:37,043 INFO L226 Difference]: Without dead ends: 209 [2020-08-22 18:31:37,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:31:37,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-08-22 18:31:37,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-08-22 18:31:37,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-08-22 18:31:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-08-22 18:31:37,113 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-08-22 18:31:37,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:37,113 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-08-22 18:31:37,113 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:31:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-08-22 18:31:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 18:31:37,117 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:37,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:31:37,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:31:37,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:37,118 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-08-22 18:31:37,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:37,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038439245] [2020-08-22 18:31:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:37,122 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:37,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:37,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:37,434 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:31:37,434 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:31:37,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:31:37,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:31:37 BoogieIcfgContainer [2020-08-22 18:31:37,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:31:37,492 INFO L168 Benchmark]: Toolchain (without parser) took 2677.67 ms. Allocated memory was 137.9 MB in the beginning and 232.3 MB in the end (delta: 94.4 MB). Free memory was 101.6 MB in the beginning and 131.6 MB in the end (delta: -30.0 MB). Peak memory consumption was 64.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,494 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.27 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 176.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,495 INFO L168 Benchmark]: Boogie Preprocessor took 77.40 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,496 INFO L168 Benchmark]: RCFGBuilder took 701.33 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 125.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,498 INFO L168 Benchmark]: TraceAbstraction took 1396.20 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 124.8 MB in the beginning and 131.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:37,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 493.27 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.1 MB in the beginning and 176.0 MB in the end (delta: -74.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.40 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 701.33 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 125.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 47.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1396.20 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 124.8 MB in the beginning and 131.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 24.7 MB. 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 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=216occurred 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...