/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_1032c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:00:44,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:00:44,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:00:44,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:00:44,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:00:44,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:00:44,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:00:44,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:00:44,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:00:44,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:00:44,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:00:44,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:00:44,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:00:44,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:00:44,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:00:44,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:00:44,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:00:44,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:00:44,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:00:44,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:00:44,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:00:44,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:00:44,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:00:44,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:00:44,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:00:44,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:00:44,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:00:44,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:00:44,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:00:44,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:00:44,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:00:44,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:00:44,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:00:44,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:00:44,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:00:44,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:00:44,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:00:44,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:00:44,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:00:44,262 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:00:44,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:00:44,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:00:44,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:44,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:00:44,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:00:44,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:00:44,263 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:00:44,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:00:44,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:00:44,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:00:44,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:00:44,583 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:00:44,583 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2020-07-07 13:00:44,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14d9696b9/05f8788957954edba0ab22fd9c907008/FLAGfe31c6255 [2020-07-07 13:00:45,116 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:00:45,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c [2020-07-07 13:00:45,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14d9696b9/05f8788957954edba0ab22fd9c907008/FLAGfe31c6255 [2020-07-07 13:00:45,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14d9696b9/05f8788957954edba0ab22fd9c907008 [2020-07-07 13:00:45,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:00:45,496 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:00:45,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:45,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:00:45,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:00:45,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4059f546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45, skipping insertion in model container [2020-07-07 13:00:45,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:00:45,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:00:45,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:45,733 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:00:45,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:45,887 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:00:45,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45 WrapperNode [2020-07-07 13:00:45,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:45,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:00:45,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:00:45,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:00:45,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... [2020-07-07 13:00:45,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:00:45,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:00:45,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:00:45,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:00:45,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:00:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:00:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2020-07-07 13:00:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-07-07 13:00:45,988 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:00:45,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:00:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:00:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-07-07 13:00:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:00:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:00:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:00:46,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:00:46,451 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-07 13:00:46,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:46 BoogieIcfgContainer [2020-07-07 13:00:46,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:00:46,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:00:46,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:00:46,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:00:46,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:00:45" (1/3) ... [2020-07-07 13:00:46,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a3ffbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:46, skipping insertion in model container [2020-07-07 13:00:46,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:45" (2/3) ... [2020-07-07 13:00:46,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a3ffbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:46, skipping insertion in model container [2020-07-07 13:00:46,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:46" (3/3) ... [2020-07-07 13:00:46,467 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c [2020-07-07 13:00:46,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:00:46,483 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:00:46,496 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:00:46,516 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:00:46,516 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:00:46,517 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:00:46,517 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:00:46,517 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:00:46,517 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:00:46,517 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:00:46,517 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:00:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states. [2020-07-07 13:00:46,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 13:00:46,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:46,544 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] [2020-07-07 13:00:46,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:46,549 INFO L82 PathProgramCache]: Analyzing trace with hash 223530101, now seen corresponding path program 1 times [2020-07-07 13:00:46,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:46,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [285683147] [2020-07-07 13:00:46,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:00:46,797 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:46,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [285683147] [2020-07-07 13:00:46,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:00:46,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:00:46,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10068782] [2020-07-07 13:00:46,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:00:46,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:00:46,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:00:46,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:00:46,825 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 4 states. [2020-07-07 13:00:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:00:47,186 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions. [2020-07-07 13:00:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:00:47,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-07-07 13:00:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:00:47,200 INFO L225 Difference]: With dead ends: 202 [2020-07-07 13:00:47,200 INFO L226 Difference]: Without dead ends: 101 [2020-07-07 13:00:47,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:00:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-07 13:00:47,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-07-07 13:00:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-07-07 13:00:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2020-07-07 13:00:47,261 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 38 [2020-07-07 13:00:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:00:47,262 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2020-07-07 13:00:47,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:00:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2020-07-07 13:00:47,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-07 13:00:47,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:47,266 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] [2020-07-07 13:00:47,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:00:47,266 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:47,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:47,267 INFO L82 PathProgramCache]: Analyzing trace with hash 32877217, now seen corresponding path program 1 times [2020-07-07 13:00:47,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:47,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459913364] [2020-07-07 13:00:47,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:47,600 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:47,601 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:00:47,601 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:00:47,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:00:47,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:00:47 BoogieIcfgContainer [2020-07-07 13:00:47,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:00:47,639 INFO L168 Benchmark]: Toolchain (without parser) took 2141.40 ms. Allocated memory was 137.9 MB in the beginning and 231.7 MB in the end (delta: 93.8 MB). Free memory was 102.3 MB in the beginning and 190.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:47,641 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:00:47,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.80 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 102.1 MB in the beginning and 177.2 MB in the end (delta: -75.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:47,643 INFO L168 Benchmark]: Boogie Preprocessor took 42.07 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 175.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:47,644 INFO L168 Benchmark]: RCFGBuilder took 528.56 ms. Allocated memory is still 199.2 MB. Free memory was 175.2 MB in the beginning and 146.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:47,646 INFO L168 Benchmark]: TraceAbstraction took 1175.18 ms. Allocated memory was 199.2 MB in the beginning and 231.7 MB in the end (delta: 32.5 MB). Free memory was 146.8 MB in the beginning and 190.3 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 13:00:47,654 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 390.80 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 102.1 MB in the beginning and 177.2 MB in the end (delta: -75.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.07 ms. Allocated memory is still 199.2 MB. Free memory was 177.2 MB in the beginning and 175.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 528.56 ms. Allocated memory is still 199.2 MB. Free memory was 175.2 MB in the beginning and 146.8 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1175.18 ms. Allocated memory was 199.2 MB in the beginning and 231.7 MB in the end (delta: 32.5 MB). Free memory was 146.8 MB in the beginning and 190.3 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = 1.0 / 0.0; [L87] CALL, EXPR round_double(x) [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L24] COND FALSE !(exponent_less_1023 < 20) [L38] COND TRUE exponent_less_1023 > 51 [L39] COND TRUE exponent_less_1023 == 1024 [L40] return x + x; [L87] RET, EXPR round_double(x) [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) [L65] __int32_t hx, lx; [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L90] RET, EXPR isinf_double(res) [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 17 SDslu, 82 SDs, 0 SdLazy, 124 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=108occurred 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...