/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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:31:35,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:31:35,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:31:35,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:31:35,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:31:35,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:31:35,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:31:35,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:31:35,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:31:35,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:31:35,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:31:35,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:31:35,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:31:35,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:31:35,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:31:35,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:31:35,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:31:35,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:31:35,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:31:35,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:31:35,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:31:35,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:31:35,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:31:35,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:31:35,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:31:35,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:31:35,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:31:35,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:31:35,392 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 18:31:35,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:31:35,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:31:35,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:31:35,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:31:35,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:31:35,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:31:35,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:31:35,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:31:35,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:31:35,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:31:35,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:31:35,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:31:35,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:31:35,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:31:35,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:31:35,410 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:31:35,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:31:35,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:31:35,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:31:35,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:31:35,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:31:35,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:31:35,411 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:31:35,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:31:35,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:31:35,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:31:35,713 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:31:35,714 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:31:35,715 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-22 18:31:35,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fdc729b/2025a327c769440bbc6ef378276d170c/FLAGc7ce91d9b [2020-08-22 18:31:36,286 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:31:36,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-08-22 18:31:36,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fdc729b/2025a327c769440bbc6ef378276d170c/FLAGc7ce91d9b [2020-08-22 18:31:36,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fdc729b/2025a327c769440bbc6ef378276d170c [2020-08-22 18:31:36,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:31:36,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:31:36,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:36,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:31:36,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:31:36,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:36" (1/1) ... [2020-08-22 18:31:36,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4e1eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:36, skipping insertion in model container [2020-08-22 18:31:36,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:31:36" (1/1) ... [2020-08-22 18:31:36,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:31:36,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:31:37,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:37,026 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:31:37,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:31:37,192 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:31:37,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37 WrapperNode [2020-08-22 18:31:37,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:31:37,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:31:37,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:31:37,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:31:37,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (1/1) ... [2020-08-22 18:31:37,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:31:37,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:31:37,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:31:37,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:31:37,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (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 18:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-08-22 18:31:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-08-22 18:31:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 18:31:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:31:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:31:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-08-22 18:31:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:31:37,992 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:31:37,993 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-08-22 18:31:38,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:38 BoogieIcfgContainer [2020-08-22 18:31:38,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:31:38,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:31:38,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:31:38,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:31:38,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:31:36" (1/3) ... [2020-08-22 18:31:38,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ba8a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:38, skipping insertion in model container [2020-08-22 18:31:38,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:31:37" (2/3) ... [2020-08-22 18:31:38,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ba8a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:31:38, skipping insertion in model container [2020-08-22 18:31:38,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:31:38" (3/3) ... [2020-08-22 18:31:38,017 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-08-22 18:31:38,028 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:31:38,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:31:38,056 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:31:38,082 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:31:38,083 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:31:38,083 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:31:38,083 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:31:38,084 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:31:38,084 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:31:38,084 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:31:38,084 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:31:38,113 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-08-22 18:31:38,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 18:31:38,130 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:38,132 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 18:31:38,132 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:38,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1577177176, now seen corresponding path program 1 times [2020-08-22 18:31:38,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:38,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [857534877] [2020-08-22 18:31:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:38,231 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:31:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:38,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-08-22 18:31:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:38,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-22 18:31:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:31:38,444 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 18:31:38,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [857534877] [2020-08-22 18:31:38,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:31:38,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:31:38,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600279039] [2020-08-22 18:31:38,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:31:38,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:31:38,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:31:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:31:38,488 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-08-22 18:31:39,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:31:39,093 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-08-22 18:31:39,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 18:31:39,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-08-22 18:31:39,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:31:39,115 INFO L225 Difference]: With dead ends: 414 [2020-08-22 18:31:39,116 INFO L226 Difference]: Without dead ends: 209 [2020-08-22 18:31:39,126 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 18:31:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-08-22 18:31:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-08-22 18:31:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-08-22 18:31:39,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-08-22 18:31:39,189 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-08-22 18:31:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:31:39,190 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-08-22 18:31:39,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:31:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-08-22 18:31:39,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-08-22 18:31:39,194 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:31:39,194 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, 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 18:31:39,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:31:39,195 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:31:39,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:31:39,196 INFO L82 PathProgramCache]: Analyzing trace with hash -16125544, now seen corresponding path program 1 times [2020-08-22 18:31:39,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:31:39,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986326559] [2020-08-22 18:31:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:31:39,199 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:31:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:39,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:31:39,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:31:39,499 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:31:39,499 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:31:39,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:31:39,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:31:39 BoogieIcfgContainer [2020-08-22 18:31:39,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:31:39,525 INFO L168 Benchmark]: Toolchain (without parser) took 2885.46 ms. Allocated memory was 147.3 MB in the beginning and 235.4 MB in the end (delta: 88.1 MB). Free memory was 104.0 MB in the beginning and 131.6 MB in the end (delta: -27.6 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,526 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.07 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 103.8 MB in the beginning and 179.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,528 INFO L168 Benchmark]: Boogie Preprocessor took 64.77 ms. Allocated memory is still 204.5 MB. Free memory was 179.9 MB in the beginning and 177.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,529 INFO L168 Benchmark]: RCFGBuilder took 748.09 ms. Allocated memory is still 204.5 MB. Free memory was 177.3 MB in the beginning and 129.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,530 INFO L168 Benchmark]: TraceAbstraction took 1512.53 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 129.8 MB in the beginning and 131.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:31:39,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 553.07 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 103.8 MB in the beginning and 179.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.77 ms. Allocated memory is still 204.5 MB. Free memory was 179.9 MB in the beginning and 177.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 748.09 ms. Allocated memory is still 204.5 MB. Free memory was 177.3 MB in the beginning and 129.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1512.53 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 129.8 MB in the beginning and 131.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L180] CALL isfinite_double(x) [L161] __int32_t hx; [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L180] RET isfinite_double(x) [L180] COND TRUE isfinite_double(x) [L182] CALL, EXPR fmod_double(x, y) [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); [L182] RET, EXPR fmod_double(x, y) [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x [L186] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 216 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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...