/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:36:26,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:36:26,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:36:27,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:36:27,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:36:27,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:36:27,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:36:27,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:36:27,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:36:27,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:36:27,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:36:27,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:36:27,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:36:27,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:36:27,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:36:27,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:36:27,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:36:27,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:36:27,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:36:27,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:36:27,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:36:27,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:36:27,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:36:27,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:36:27,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:36:27,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:36:27,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:36:27,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:36:27,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:36:27,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:36:27,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:36:27,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:36:27,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:36:27,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:36:27,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:36:27,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:36:27,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:36:27,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:36:27,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:36:27,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:36:27,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:36:27,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:36:27,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:36:27,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:36:27,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:36:27,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:36:27,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:36:27,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:36:27,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:36:27,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:36:27,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:36:27,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:36:27,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:36:27,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:36:27,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:36:27,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:36:27,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:36:27,137 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:36:27,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:36:27,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:36:27,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:36:27,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:36:27,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:36:27,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:36:27,138 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 21:36:27,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:36:27,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:36:27,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:36:27,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:36:27,600 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:36:27,601 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-04 21:36:27,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f290d4c/0c59985e2b8b47bca1cf6722b2d240df/FLAG6fd81f420 [2020-09-04 21:36:28,191 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:36:28,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-04 21:36:28,202 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f290d4c/0c59985e2b8b47bca1cf6722b2d240df/FLAG6fd81f420 [2020-09-04 21:36:28,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3f290d4c/0c59985e2b8b47bca1cf6722b2d240df [2020-09-04 21:36:28,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:36:28,534 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:36:28,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:28,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:36:28,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:36:28,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:28" (1/1) ... [2020-09-04 21:36:28,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:28, skipping insertion in model container [2020-09-04 21:36:28,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:36:28" (1/1) ... [2020-09-04 21:36:28,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:36:28,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:36:28,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:29,028 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:36:29,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:36:29,103 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:36:29,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29 WrapperNode [2020-09-04 21:36:29,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:36:29,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:36:29,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:36:29,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:36:29,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... [2020-09-04 21:36:29,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:36:29,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:36:29,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:36:29,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:36:29,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-04 21:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-04 21:36:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-04 21:36:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:36:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:36:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-04 21:36:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-04 21:36:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-04 21:36:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:36:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:36:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:36:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:36:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:36:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:36:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-04 21:36:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:36:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:36:29,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-04 21:36:29,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:36:29,920 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:36:29,920 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-04 21:36:29,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:29 BoogieIcfgContainer [2020-09-04 21:36:29,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:36:29,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:36:29,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:36:29,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:36:29,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:36:28" (1/3) ... [2020-09-04 21:36:29,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268b26fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:29, skipping insertion in model container [2020-09-04 21:36:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:36:29" (2/3) ... [2020-09-04 21:36:29,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268b26fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:36:29, skipping insertion in model container [2020-09-04 21:36:29,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:36:29" (3/3) ... [2020-09-04 21:36:29,938 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-04 21:36:29,950 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:36:29,961 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:36:29,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:36:30,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:36:30,014 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:36:30,014 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:36:30,015 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:36:30,015 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:36:30,015 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:36:30,015 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:36:30,015 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:36:30,040 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-04 21:36:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-04 21:36:30,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:30,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:36:30,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:30,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:30,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-04 21:36:30,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:30,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888716971] [2020-09-04 21:36:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:30,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 21:36:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-04 21:36:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-04 21:36:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 21:36:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 21:36:30,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888716971] [2020-09-04 21:36:30,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 21:36:30,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 21:36:30,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086358283] [2020-09-04 21:36:30,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 21:36:30,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 21:36:30,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 21:36:30,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 21:36:30,450 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-04 21:36:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 21:36:31,001 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-04 21:36:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 21:36:31,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-04 21:36:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 21:36:31,019 INFO L225 Difference]: With dead ends: 414 [2020-09-04 21:36:31,019 INFO L226 Difference]: Without dead ends: 209 [2020-09-04 21:36:31,026 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 [2020-09-04 21:36:31,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-04 21:36:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-04 21:36:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-04 21:36:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-04 21:36:31,099 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-04 21:36:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 21:36:31,099 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-04 21:36:31,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 21:36:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-04 21:36:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-04 21:36:31,103 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:36:31,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 21:36:31,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:36:31,104 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:36:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:36:31,105 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-04 21:36:31,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:36:31,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978048492] [2020-09-04 21:36:31,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:36:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:31,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:36:31,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:36:31,493 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:36:31,494 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:36:31,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 21:36:31,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:36:31 BoogieIcfgContainer [2020-09-04 21:36:31,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:36:31,615 INFO L168 Benchmark]: Toolchain (without parser) took 3079.75 ms. Allocated memory was 141.0 MB in the beginning and 234.4 MB in the end (delta: 93.3 MB). Free memory was 103.5 MB in the beginning and 127.7 MB in the end (delta: -24.1 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:31,617 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 21:36:31,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.12 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.3 MB in the beginning and 180.1 MB in the end (delta: -76.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:31,623 INFO L168 Benchmark]: Boogie Preprocessor took 68.76 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:31,625 INFO L168 Benchmark]: RCFGBuilder took 754.79 ms. Allocated memory is still 205.0 MB. Free memory was 177.5 MB in the beginning and 130.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:31,627 INFO L168 Benchmark]: TraceAbstraction took 1681.51 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 129.4 MB in the beginning and 127.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-09-04 21:36:31,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 569.12 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.3 MB in the beginning and 180.1 MB in the end (delta: -76.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.76 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 754.79 ms. Allocated memory is still 205.0 MB. Free memory was 177.5 MB in the beginning and 130.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1681.51 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 129.4 MB in the beginning and 127.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372032558759954, \old(Zero_fmod)=9223372032558759941, \old(Zero_fmod)=9223372032558759951, one_fmod=1, Zero_fmod={3:0}] [L180] double y = 1.0 / 0.0; VAL [one_fmod=1, Zero_fmod={3:0}] [L181] double x = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=9223372032558759946, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] CALL isfinite_double(x) VAL [\old(x)=9223372032558759946, one_fmod=1, Zero_fmod={3:0}] [L164] __int32_t hx; VAL [\old(x)=9223372032558759946, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L166] ieee_double_shape_type gh_u; VAL [\old(x)=9223372032558759946, gh_u={5:0}, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L167] gh_u.value = (x) VAL [\old(x)=9223372032558759946, gh_u={5:0}, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L168] EXPR gh_u.parts.msw VAL [\old(x)=9223372032558759946, gh_u={5:0}, gh_u.parts.msw=8589934590, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L168] (hx) = gh_u.parts.msw VAL [\old(x)=9223372032558759946, gh_u={5:0}, gh_u.parts.msw=8589934590, hx=-2, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372032558759946, \result=6, hx=-2, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L183] COND TRUE isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372032558759946, Zero_fmod={3:0}] [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L25] __uint32_t lx, ly, lz; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L29] ew_u.value = (x) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L30] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.msw=4294967292, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L30] (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=9223372032558759945, \old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.msw=4294967292, hx=-4, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L31] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.lsw=9223372032558759957, hx=-4, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L31] (lx) = ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={7:0}, ew_u.parts.lsw=9223372032558759957, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L34] ieee_double_shape_type ew_u; VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L35] ew_u.value = (y) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L36] EXPR ew_u.parts.msw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.msw=0, hx=-4, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L36] (hy) = ew_u.parts.msw VAL [(hy) = ew_u.parts.msw=9223372032558759956, \old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.msw=0, hx=-4, hy=0, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L37] EXPR ew_u.parts.lsw VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.lsw=9223372032558759948, hx=-4, hy=0, lx=9223372032558759957, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L37] (ly) = ew_u.parts.lsw VAL [(ly) = ew_u.parts.lsw=9223372032558759944, \old(x)=9223372032558759946, \old(y)=9223372032558759947, ew_u={2:0}, ew_u.parts.lsw=9223372032558759948, hx=-4, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L39] sx = hx & 0x80000000 VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=-4, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L40] hx ^= sx VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hy=0, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L41] hy &= 0x7fffffff VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=2146435072, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L45] return (x * y) / (x * y); VAL [\old(x)=9223372032558759946, \old(y)=9223372032558759947, hx=2146435072, lx=9223372032558759957, ly=9223372032558759948, one_fmod=1, sx=-1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372032558759943, one_fmod=1, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L185] double res = fmod_double(x, y); VAL [fmod_double(x, y)=9223372032558759943, one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L188] COND TRUE res != x VAL [one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=9223372032558759943, x=9223372032558759946, y=9223372032558759947, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...