/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 0.1.25-267fbe0 [2020-07-17 13:13:54,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 13:13:54,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 13:13:54,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 13:13:54,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 13:13:54,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 13:13:54,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 13:13:54,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 13:13:54,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 13:13:54,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 13:13:54,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 13:13:54,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 13:13:54,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 13:13:54,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 13:13:54,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 13:13:54,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 13:13:54,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 13:13:54,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 13:13:54,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 13:13:54,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 13:13:54,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 13:13:54,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 13:13:54,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 13:13:54,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 13:13:54,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 13:13:54,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 13:13:54,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 13:13:54,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 13:13:54,293 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 13:13:54,311 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 13:13:54,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 13:13:54,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 13:13:54,312 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 13:13:54,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 13:13:54,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 13:13:54,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 13:13:54,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 13:13:54,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 13:13:54,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 13:13:54,314 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 13:13:54,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 13:13:54,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 13:13:54,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 13:13:54,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 13:13:54,315 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 13:13:54,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 13:13:54,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 13:13:54,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 13:13:54,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 13:13:54,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 13:13:54,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 13:13:54,317 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 13:13:54,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 13:13:54,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 13:13:54,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 13:13:54,586 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 13:13:54,587 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 13:13:54,587 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-17 13:13:54,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d991999d/d32153af6cf74ad4be484b536850a3ec/FLAGedb488ebd [2020-07-17 13:13:55,182 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 13:13:55,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-17 13:13:55,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d991999d/d32153af6cf74ad4be484b536850a3ec/FLAGedb488ebd [2020-07-17 13:13:55,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d991999d/d32153af6cf74ad4be484b536850a3ec [2020-07-17 13:13:55,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 13:13:55,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 13:13:55,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:55,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 13:13:55,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 13:13:55,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa10e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55, skipping insertion in model container [2020-07-17 13:13:55,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 13:13:55,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 13:13:55,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:55,854 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 13:13:55,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 13:13:55,937 INFO L208 MainTranslator]: Completed translation [2020-07-17 13:13:55,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55 WrapperNode [2020-07-17 13:13:55,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 13:13:55,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 13:13:55,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 13:13:55,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 13:13:55,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:55,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:56,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (1/1) ... [2020-07-17 13:13:56,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 13:13:56,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 13:13:56,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 13:13:56,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 13:13:56,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (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 13:13:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 13:13:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 13:13:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-17 13:13:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-17 13:13:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-17 13:13:56,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 13:13:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 13:13:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 13:13:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-17 13:13:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-17 13:13:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 13:13:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-17 13:13:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 13:13:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 13:13:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-17 13:13:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 13:13:56,701 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 13:13:56,702 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-17 13:13:56,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:56 BoogieIcfgContainer [2020-07-17 13:13:56,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 13:13:56,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 13:13:56,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 13:13:56,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 13:13:56,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 01:13:55" (1/3) ... [2020-07-17 13:13:56,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df7e637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:56, skipping insertion in model container [2020-07-17 13:13:56,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 01:13:55" (2/3) ... [2020-07-17 13:13:56,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df7e637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 01:13:56, skipping insertion in model container [2020-07-17 13:13:56,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 01:13:56" (3/3) ... [2020-07-17 13:13:56,717 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-17 13:13:56,728 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 13:13:56,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 13:13:56,751 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 13:13:56,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 13:13:56,774 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 13:13:56,774 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 13:13:56,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 13:13:56,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 13:13:56,774 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 13:13:56,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 13:13:56,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 13:13:56,795 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-07-17 13:13:56,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 13:13:56,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:56,810 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] [2020-07-17 13:13:56,811 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-07-17 13:13:56,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:56,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1650812757] [2020-07-17 13:13:56,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 13:13:57,078 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 13:13:57,084 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:57,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1650812757] [2020-07-17 13:13:57,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 13:13:57,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 13:13:57,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362467430] [2020-07-17 13:13:57,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 13:13:57,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 13:13:57,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 13:13:57,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 13:13:57,116 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-07-17 13:13:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 13:13:57,658 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-07-17 13:13:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 13:13:57,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-17 13:13:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 13:13:57,674 INFO L225 Difference]: With dead ends: 414 [2020-07-17 13:13:57,674 INFO L226 Difference]: Without dead ends: 209 [2020-07-17 13:13:57,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 13:13:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-07-17 13:13:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-07-17 13:13:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-17 13:13:57,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-07-17 13:13:57,750 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-07-17 13:13:57,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 13:13:57,751 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-07-17 13:13:57,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 13:13:57,751 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-07-17 13:13:57,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-17 13:13:57,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 13:13:57,755 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] [2020-07-17 13:13:57,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 13:13:57,755 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 13:13:57,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 13:13:57,756 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-07-17 13:13:57,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 13:13:57,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765288185] [2020-07-17 13:13:57,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 13:13:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 13:13:58,198 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 13:13:58,199 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 13:13:58,199 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 13:13:58,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 13:13:58,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 01:13:58 BoogieIcfgContainer [2020-07-17 13:13:58,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 13:13:58,238 INFO L168 Benchmark]: Toolchain (without parser) took 2729.96 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 102.7 MB in the beginning and 126.9 MB in the end (delta: -24.2 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,239 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-17 13:13:58,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.04 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 177.0 MB in the end (delta: -74.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,243 INFO L168 Benchmark]: Boogie Preprocessor took 66.27 ms. Allocated memory is still 202.4 MB. Free memory was 177.0 MB in the beginning and 174.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,244 INFO L168 Benchmark]: RCFGBuilder took 703.78 ms. Allocated memory is still 202.4 MB. Free memory was 174.1 MB in the beginning and 126.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,245 INFO L168 Benchmark]: TraceAbstraction took 1525.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 125.7 MB in the beginning and 126.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-07-17 13:13:58,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 429.04 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 177.0 MB in the end (delta: -74.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.27 ms. Allocated memory is still 202.4 MB. Free memory was 177.0 MB in the beginning and 174.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 703.78 ms. Allocated memory is still 202.4 MB. Free memory was 174.1 MB in the beginning and 126.7 MB in the end (delta: 47.4 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1525.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 125.7 MB in the beginning and 126.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 31.9 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: 1.4s, 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, 31 GetRequests, 28 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...