/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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:01:14,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:01:14,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:01:14,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:01:14,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:01:14,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:01:14,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:01:14,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:01:14,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:01:14,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:01:14,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:01:14,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:01:14,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:01:14,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:01:14,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:01:14,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:01:14,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:01:14,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:01:14,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:01:14,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:01:14,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:01:14,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:01:14,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:01:14,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:01:14,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:01:14,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:01:14,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:01:14,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:01:14,671 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 13:01:14,680 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:01:14,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:01:14,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:01:14,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:01:14,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:01:14,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:01:14,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:01:14,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:01:14,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:01:14,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:01:14,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:01:14,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:01:14,684 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:01:14,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:01:14,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:01:14,690 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:01:14,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:01:14,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:01:14,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:01:14,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:01:14,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:01:14,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:01:14,691 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:01:14,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:01:14,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:01:14,971 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:01:14,973 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:01:14,973 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:01:14,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-07 13:01:15,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04187f5d3/6e9749e4aca84d26b2be773b36b71163/FLAG6e5b7f8c2 [2020-07-07 13:01:15,490 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:01:15,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-07 13:01:15,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04187f5d3/6e9749e4aca84d26b2be773b36b71163/FLAG6e5b7f8c2 [2020-07-07 13:01:15,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04187f5d3/6e9749e4aca84d26b2be773b36b71163 [2020-07-07 13:01:15,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:01:15,896 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:01:15,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:15,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:01:15,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:01:15,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:15" (1/1) ... [2020-07-07 13:01:15,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a082ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:15, skipping insertion in model container [2020-07-07 13:01:15,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:01:15" (1/1) ... [2020-07-07 13:01:15,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:01:15,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:01:16,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:16,195 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:01:16,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:01:16,368 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:01:16,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16 WrapperNode [2020-07-07 13:01:16,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:01:16,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:01:16,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:01:16,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:01:16,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (1/1) ... [2020-07-07 13:01:16,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:01:16,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:01:16,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:01:16,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:01:16,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (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 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-07 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-07 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-07 13:01:16,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 13:01:16,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:01:16,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:01:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-07 13:01:16,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:01:17,197 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:01:17,198 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-07 13:01:17,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:17 BoogieIcfgContainer [2020-07-07 13:01:17,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:01:17,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:01:17,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:01:17,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:01:17,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:01:15" (1/3) ... [2020-07-07 13:01:17,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d441153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:17, skipping insertion in model container [2020-07-07 13:01:17,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:01:16" (2/3) ... [2020-07-07 13:01:17,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d441153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:01:17, skipping insertion in model container [2020-07-07 13:01:17,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:01:17" (3/3) ... [2020-07-07 13:01:17,212 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-07-07 13:01:17,223 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:01:17,231 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:01:17,243 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:01:17,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:01:17,263 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:01:17,263 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:01:17,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:01:17,264 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:01:17,264 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:01:17,264 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:01:17,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:01:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states. [2020-07-07 13:01:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 13:01:17,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:17,299 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 13:01:17,300 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1608489446, now seen corresponding path program 1 times [2020-07-07 13:01:17,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:17,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002207314] [2020-07-07 13:01:17,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:01:17,567 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 13:01:17,568 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:17,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002207314] [2020-07-07 13:01:17,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:01:17,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:01:17,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103973155] [2020-07-07 13:01:17,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:01:17,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:01:17,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:01:17,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:01:17,596 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 4 states. [2020-07-07 13:01:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:01:18,171 INFO L93 Difference]: Finished difference Result 415 states and 505 transitions. [2020-07-07 13:01:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 13:01:18,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-07-07 13:01:18,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:01:18,187 INFO L225 Difference]: With dead ends: 415 [2020-07-07 13:01:18,188 INFO L226 Difference]: Without dead ends: 213 [2020-07-07 13:01:18,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 13:01:18,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-07-07 13:01:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-07-07 13:01:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-07 13:01:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2020-07-07 13:01:18,263 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 46 [2020-07-07 13:01:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:01:18,264 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2020-07-07 13:01:18,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:01:18,264 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-07-07 13:01:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-07 13:01:18,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:01:18,267 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] [2020-07-07 13:01:18,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:01:18,268 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:01:18,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:01:18,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1262573606, now seen corresponding path program 1 times [2020-07-07 13:01:18,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:01:18,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558717745] [2020-07-07 13:01:18,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:01:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:01:18,556 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:01:18,557 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:01:18,557 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:01:18,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:01:18,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:01:18 BoogieIcfgContainer [2020-07-07 13:01:18,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:01:18,613 INFO L168 Benchmark]: Toolchain (without parser) took 2715.13 ms. Allocated memory was 136.8 MB in the beginning and 231.7 MB in the end (delta: 94.9 MB). Free memory was 100.8 MB in the beginning and 132.3 MB in the end (delta: -31.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,617 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.28 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 176.4 MB in the end (delta: -75.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,622 INFO L168 Benchmark]: Boogie Preprocessor took 65.57 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 173.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,623 INFO L168 Benchmark]: RCFGBuilder took 769.43 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 125.2 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,625 INFO L168 Benchmark]: TraceAbstraction took 1403.87 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 124.5 MB in the beginning and 132.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:01:18,635 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 471.28 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 176.4 MB in the end (delta: -75.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.57 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 173.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 769.43 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 125.2 MB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1403.87 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 124.5 MB in the beginning and 132.3 MB in the end (delta: -7.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: 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 bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L187] 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); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 245 SDtfs, 45 SDslu, 184 SDs, 0 SdLazy, 266 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred 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...