/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_1031.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:00:38,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:00:38,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:00:38,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:00:38,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:00:38,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:00:38,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:00:38,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:00:38,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:00:38,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:00:38,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:00:38,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:00:38,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:00:38,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:00:38,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:00:38,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:00:38,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:00:38,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:00:38,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:00:38,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:00:39,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:00:39,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:00:39,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:00:39,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:00:39,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:00:39,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:00:39,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:00:39,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:00:39,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:00:39,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:00:39,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:00:39,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:00:39,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:00:39,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:00:39,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:00:39,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:00:39,022 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 13:00:39,031 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:00:39,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:00:39,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:00:39,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:00:39,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:00:39,033 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:00:39,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:00:39,034 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:00:39,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:00:39,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:00:39,034 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:00:39,035 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:00:39,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:00:39,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:00:39,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:00:39,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:00:39,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:00:39,036 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:00:39,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:00:39,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:00:39,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:00:39,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:00:39,323 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:00:39,324 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1031.c [2020-07-07 13:00:39,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d4a9f44/a2320eb619f1462486c0ba9eed3ba336/FLAG278180598 [2020-07-07 13:00:39,861 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:00:39,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1031.c [2020-07-07 13:00:39,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d4a9f44/a2320eb619f1462486c0ba9eed3ba336/FLAG278180598 [2020-07-07 13:00:40,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5d4a9f44/a2320eb619f1462486c0ba9eed3ba336 [2020-07-07 13:00:40,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:00:40,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:00:40,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:40,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:00:40,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:00:40,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a05ee65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40, skipping insertion in model container [2020-07-07 13:00:40,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:00:40,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:00:40,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:40,474 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:00:40,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:00:40,613 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:00:40,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40 WrapperNode [2020-07-07 13:00:40,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:00:40,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:00:40,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:00:40,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:00:40,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (1/1) ... [2020-07-07 13:00:40,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:00:40,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:00:40,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:00:40,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:00:40,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (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 13:00:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:00:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:00:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:00:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2020-07-07 13:00:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:00:41,133 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:00:41,133 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-07 13:00:41,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:41 BoogieIcfgContainer [2020-07-07 13:00:41,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:00:41,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:00:41,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:00:41,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:00:41,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:00:40" (1/3) ... [2020-07-07 13:00:41,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75231d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:41, skipping insertion in model container [2020-07-07 13:00:41,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:00:40" (2/3) ... [2020-07-07 13:00:41,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75231d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:00:41, skipping insertion in model container [2020-07-07 13:00:41,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:00:41" (3/3) ... [2020-07-07 13:00:41,145 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2020-07-07 13:00:41,155 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:00:41,163 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:00:41,176 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:00:41,193 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:00:41,193 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:00:41,193 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:00:41,194 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:00:41,194 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:00:41,194 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:00:41,194 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:00:41,194 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:00:41,209 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-07-07 13:00:41,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-07 13:00:41,218 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:41,219 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] [2020-07-07 13:00:41,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:41,225 INFO L82 PathProgramCache]: Analyzing trace with hash 69005663, now seen corresponding path program 1 times [2020-07-07 13:00:41,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:41,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991085724] [2020-07-07 13:00:41,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:00:41,508 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 13:00:41,508 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:41,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991085724] [2020-07-07 13:00:41,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:00:41,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:00:41,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127470269] [2020-07-07 13:00:41,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:00:41,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:00:41,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:00:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:00:41,532 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-07-07 13:00:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:00:41,860 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2020-07-07 13:00:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:00:41,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-07-07 13:00:41,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:00:41,874 INFO L225 Difference]: With dead ends: 162 [2020-07-07 13:00:41,874 INFO L226 Difference]: Without dead ends: 81 [2020-07-07 13:00:41,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:00:41,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-07 13:00:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-07 13:00:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-07 13:00:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2020-07-07 13:00:41,931 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 32 [2020-07-07 13:00:41,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:00:41,932 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2020-07-07 13:00:41,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:00:41,932 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2020-07-07 13:00:41,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:00:41,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:00:41,935 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] [2020-07-07 13:00:41,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:00:41,936 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:00:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:00:41,936 INFO L82 PathProgramCache]: Analyzing trace with hash -480977931, now seen corresponding path program 1 times [2020-07-07 13:00:41,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:00:41,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681045848] [2020-07-07 13:00:41,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:00:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:00:42,111 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:00:42,112 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:00:42,112 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:00:42,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:00:42,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:00:42 BoogieIcfgContainer [2020-07-07 13:00:42,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:00:42,135 INFO L168 Benchmark]: Toolchain (without parser) took 1886.92 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.6 MB in the beginning and 98.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,136 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.71 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 181.4 MB in the end (delta: -78.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,138 INFO L168 Benchmark]: Boogie Preprocessor took 65.60 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,139 INFO L168 Benchmark]: RCFGBuilder took 454.43 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 155.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,140 INFO L168 Benchmark]: TraceAbstraction took 993.84 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 98.2 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:00:42,144 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 365.71 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.4 MB in the beginning and 181.4 MB in the end (delta: -78.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.60 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 179.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 454.43 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 155.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 993.84 ms. Allocated memory is still 202.9 MB. Free memory was 154.5 MB in the beginning and 98.2 MB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L75] CALL, EXPR round_double(x) [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L27] COND FALSE !(exponent_less_1023 < 20) [L41] COND TRUE exponent_less_1023 > 51 [L42] COND TRUE exponent_less_1023 == 1024 [L43] return x + x; [L75] RET, EXPR round_double(x) [L75] double res = round_double(x); [L78] CALL, EXPR isnan_double(res) [L15] return x != x; [L78] RET, EXPR isnan_double(res) [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 17 SDslu, 67 SDs, 0 SdLazy, 98 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred 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...