/usr/bin/java -ea -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/float_req_bl_0730b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 21:48:17,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 21:48:17,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 21:48:17,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 21:48:17,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 21:48:17,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 21:48:17,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 21:48:17,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 21:48:17,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 21:48:17,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 21:48:17,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 21:48:17,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 21:48:17,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 21:48:17,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 21:48:17,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 21:48:17,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 21:48:17,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 21:48:17,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 21:48:17,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 21:48:17,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 21:48:17,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 21:48:17,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 21:48:17,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 21:48:17,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 21:48:17,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 21:48:17,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 21:48:17,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 21:48:17,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 21:48:17,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 21:48:17,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 21:48:17,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 21:48:17,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 21:48:17,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 21:48:17,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 21:48:17,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 21:48:17,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 21:48:17,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 21:48:17,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 21:48:17,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 21:48:17,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 21:48:17,587 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 21:48:17,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 21:48:17,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 21:48:17,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 21:48:17,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 21:48:17,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 21:48:17,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 21:48:17,588 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 21:48:17,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 21:48:17,589 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 21:48:17,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 21:48:17,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 21:48:17,589 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 21:48:17,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 21:48:17,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 21:48:17,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:48:17,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 21:48:17,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 21:48:17,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 21:48:17,591 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 [2020-07-08 21:48:17,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 21:48:17,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 21:48:17,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 21:48:17,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 21:48:17,886 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 21:48:17,887 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-08 21:48:17,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733c5e9c/ea71e50c0d2643dca7ec60728e3297c3/FLAGdd47df90d [2020-07-08 21:48:18,416 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 21:48:18,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-08 21:48:18,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733c5e9c/ea71e50c0d2643dca7ec60728e3297c3/FLAGdd47df90d [2020-07-08 21:48:18,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733c5e9c/ea71e50c0d2643dca7ec60728e3297c3 [2020-07-08 21:48:18,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 21:48:18,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 21:48:18,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:18,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 21:48:18,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 21:48:18,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:18" (1/1) ... [2020-07-08 21:48:18,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfc0b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:18, skipping insertion in model container [2020-07-08 21:48:18,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:18" (1/1) ... [2020-07-08 21:48:18,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 21:48:18,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 21:48:19,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:19,154 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 21:48:19,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:19,314 INFO L208 MainTranslator]: Completed translation [2020-07-08 21:48:19,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19 WrapperNode [2020-07-08 21:48:19,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:19,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 21:48:19,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 21:48:19,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 21:48:19,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (1/1) ... [2020-07-08 21:48:19,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 21:48:19,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 21:48:19,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 21:48:19,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 21:48:19,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (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 [2020-07-08 21:48:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 21:48:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 21:48:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-08 21:48:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-08 21:48:19,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 21:48:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 21:48:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-08 21:48:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-08 21:48:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 21:48:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-08 21:48:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 21:48:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 21:48:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 21:48:20,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 21:48:20,033 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-08 21:48:20,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:20 BoogieIcfgContainer [2020-07-08 21:48:20,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 21:48:20,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 21:48:20,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 21:48:20,044 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 21:48:20,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 09:48:18" (1/3) ... [2020-07-08 21:48:20,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2e1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:20, skipping insertion in model container [2020-07-08 21:48:20,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:19" (2/3) ... [2020-07-08 21:48:20,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef2e1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:20, skipping insertion in model container [2020-07-08 21:48:20,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:20" (3/3) ... [2020-07-08 21:48:20,048 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-07-08 21:48:20,059 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 21:48:20,067 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 21:48:20,081 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 21:48:20,102 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 21:48:20,103 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 21:48:20,103 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 21:48:20,103 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 21:48:20,104 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 21:48:20,104 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 21:48:20,104 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 21:48:20,104 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 21:48:20,122 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-07-08 21:48:20,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-08 21:48:20,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:20,135 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] [2020-07-08 21:48:20,135 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:20,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:20,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1619390018, now seen corresponding path program 1 times [2020-07-08 21:48:20,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:20,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1985346091] [2020-07-08 21:48:20,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:20,346 INFO L280 TraceCheckUtils]: 0: Hoare triple {149#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0; {124#true} is VALID [2020-07-08 21:48:20,347 INFO L280 TraceCheckUtils]: 1: Hoare triple {124#true} #valid := #valid[0 := 0]; {124#true} is VALID [2020-07-08 21:48:20,347 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} assume 0 < #StackHeapBarrier; {124#true} is VALID [2020-07-08 21:48:20,348 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} ~one_sqrt~0 := 1.0; {124#true} is VALID [2020-07-08 21:48:20,349 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} ~tiny_sqrt~0 := 1.0E-30; {124#true} is VALID [2020-07-08 21:48:20,349 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} assume true; {124#true} is VALID [2020-07-08 21:48:20,350 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {124#true} {124#true} #220#return; {124#true} is VALID [2020-07-08 21:48:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:20,392 INFO L280 TraceCheckUtils]: 0: Hoare triple {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {124#true} is VALID [2020-07-08 21:48:20,392 INFO L280 TraceCheckUtils]: 1: Hoare triple {124#true} havoc ~z~0; {124#true} is VALID [2020-07-08 21:48:20,393 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} havoc ~r~0; {124#true} is VALID [2020-07-08 21:48:20,393 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} havoc ~hx~0; {124#true} is VALID [2020-07-08 21:48:20,394 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} havoc ~ix~0; {124#true} is VALID [2020-07-08 21:48:20,395 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} havoc ~s~0; {124#true} is VALID [2020-07-08 21:48:20,395 INFO L280 TraceCheckUtils]: 6: Hoare triple {124#true} havoc ~q~0; {124#true} is VALID [2020-07-08 21:48:20,398 INFO L280 TraceCheckUtils]: 7: Hoare triple {124#true} havoc ~m~0; {124#true} is VALID [2020-07-08 21:48:20,399 INFO L280 TraceCheckUtils]: 8: Hoare triple {124#true} havoc ~t~0; {124#true} is VALID [2020-07-08 21:48:20,399 INFO L280 TraceCheckUtils]: 9: Hoare triple {124#true} havoc ~i~0; {124#true} is VALID [2020-07-08 21:48:20,401 INFO L280 TraceCheckUtils]: 10: Hoare triple {124#true} assume !true; {125#false} is VALID [2020-07-08 21:48:20,401 INFO L280 TraceCheckUtils]: 11: Hoare triple {125#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {125#false} is VALID [2020-07-08 21:48:20,402 INFO L280 TraceCheckUtils]: 12: Hoare triple {125#false} assume !(~hx~0 % 4294967296 < 2139095040); {125#false} is VALID [2020-07-08 21:48:20,402 INFO L280 TraceCheckUtils]: 13: Hoare triple {125#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {125#false} is VALID [2020-07-08 21:48:20,402 INFO L280 TraceCheckUtils]: 14: Hoare triple {125#false} assume true; {125#false} is VALID [2020-07-08 21:48:20,403 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {125#false} {124#true} #216#return; {125#false} is VALID [2020-07-08 21:48:20,407 INFO L263 TraceCheckUtils]: 0: Hoare triple {124#true} call ULTIMATE.init(); {149#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} is VALID [2020-07-08 21:48:20,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {149#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0; {124#true} is VALID [2020-07-08 21:48:20,407 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} #valid := #valid[0 := 0]; {124#true} is VALID [2020-07-08 21:48:20,408 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} assume 0 < #StackHeapBarrier; {124#true} is VALID [2020-07-08 21:48:20,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} ~one_sqrt~0 := 1.0; {124#true} is VALID [2020-07-08 21:48:20,409 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} ~tiny_sqrt~0 := 1.0E-30; {124#true} is VALID [2020-07-08 21:48:20,410 INFO L280 TraceCheckUtils]: 6: Hoare triple {124#true} assume true; {124#true} is VALID [2020-07-08 21:48:20,410 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {124#true} {124#true} #220#return; {124#true} is VALID [2020-07-08 21:48:20,411 INFO L263 TraceCheckUtils]: 8: Hoare triple {124#true} call #t~ret10 := main(); {124#true} is VALID [2020-07-08 21:48:20,411 INFO L280 TraceCheckUtils]: 9: Hoare triple {124#true} ~x~0 := 0.0; {124#true} is VALID [2020-07-08 21:48:20,414 INFO L263 TraceCheckUtils]: 10: Hoare triple {124#true} call #t~ret7 := __ieee754_sqrtf(~x~0); {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:48:20,415 INFO L280 TraceCheckUtils]: 11: Hoare triple {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {124#true} is VALID [2020-07-08 21:48:20,415 INFO L280 TraceCheckUtils]: 12: Hoare triple {124#true} havoc ~z~0; {124#true} is VALID [2020-07-08 21:48:20,416 INFO L280 TraceCheckUtils]: 13: Hoare triple {124#true} havoc ~r~0; {124#true} is VALID [2020-07-08 21:48:20,416 INFO L280 TraceCheckUtils]: 14: Hoare triple {124#true} havoc ~hx~0; {124#true} is VALID [2020-07-08 21:48:20,417 INFO L280 TraceCheckUtils]: 15: Hoare triple {124#true} havoc ~ix~0; {124#true} is VALID [2020-07-08 21:48:20,417 INFO L280 TraceCheckUtils]: 16: Hoare triple {124#true} havoc ~s~0; {124#true} is VALID [2020-07-08 21:48:20,417 INFO L280 TraceCheckUtils]: 17: Hoare triple {124#true} havoc ~q~0; {124#true} is VALID [2020-07-08 21:48:20,418 INFO L280 TraceCheckUtils]: 18: Hoare triple {124#true} havoc ~m~0; {124#true} is VALID [2020-07-08 21:48:20,418 INFO L280 TraceCheckUtils]: 19: Hoare triple {124#true} havoc ~t~0; {124#true} is VALID [2020-07-08 21:48:20,418 INFO L280 TraceCheckUtils]: 20: Hoare triple {124#true} havoc ~i~0; {124#true} is VALID [2020-07-08 21:48:20,422 INFO L280 TraceCheckUtils]: 21: Hoare triple {124#true} assume !true; {125#false} is VALID [2020-07-08 21:48:20,422 INFO L280 TraceCheckUtils]: 22: Hoare triple {125#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {125#false} is VALID [2020-07-08 21:48:20,422 INFO L280 TraceCheckUtils]: 23: Hoare triple {125#false} assume !(~hx~0 % 4294967296 < 2139095040); {125#false} is VALID [2020-07-08 21:48:20,423 INFO L280 TraceCheckUtils]: 24: Hoare triple {125#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {125#false} is VALID [2020-07-08 21:48:20,423 INFO L280 TraceCheckUtils]: 25: Hoare triple {125#false} assume true; {125#false} is VALID [2020-07-08 21:48:20,424 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {125#false} {124#true} #216#return; {125#false} is VALID [2020-07-08 21:48:20,424 INFO L280 TraceCheckUtils]: 27: Hoare triple {125#false} ~res~0 := #t~ret7; {125#false} is VALID [2020-07-08 21:48:20,424 INFO L280 TraceCheckUtils]: 28: Hoare triple {125#false} havoc #t~ret7; {125#false} is VALID [2020-07-08 21:48:20,425 INFO L280 TraceCheckUtils]: 29: Hoare triple {125#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {125#false} is VALID [2020-07-08 21:48:20,429 INFO L280 TraceCheckUtils]: 30: Hoare triple {125#false} assume !#t~short9; {125#false} is VALID [2020-07-08 21:48:20,429 INFO L280 TraceCheckUtils]: 31: Hoare triple {125#false} assume !#t~short9; {125#false} is VALID [2020-07-08 21:48:20,429 INFO L280 TraceCheckUtils]: 32: Hoare triple {125#false} havoc #t~short9; {125#false} is VALID [2020-07-08 21:48:20,430 INFO L280 TraceCheckUtils]: 33: Hoare triple {125#false} havoc #t~ret8; {125#false} is VALID [2020-07-08 21:48:20,430 INFO L280 TraceCheckUtils]: 34: Hoare triple {125#false} assume !false; {125#false} is VALID [2020-07-08 21:48:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 21:48:20,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1985346091] [2020-07-08 21:48:20,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 21:48:20,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 21:48:20,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305840992] [2020-07-08 21:48:20,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-08 21:48:20,451 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 21:48:20,454 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 21:48:20,522 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:20,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 21:48:20,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 21:48:20,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 21:48:20,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 21:48:20,534 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 4 states. [2020-07-08 21:48:21,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:21,378 INFO L93 Difference]: Finished difference Result 220 states and 261 transitions. [2020-07-08 21:48:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 21:48:21,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-08 21:48:21,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 21:48:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2020-07-08 21:48:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2020-07-08 21:48:21,404 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 261 transitions. [2020-07-08 21:48:21,771 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 261 edges. 261 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:21,798 INFO L225 Difference]: With dead ends: 220 [2020-07-08 21:48:21,798 INFO L226 Difference]: Without dead ends: 113 [2020-07-08 21:48:21,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 21:48:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-08 21:48:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-08 21:48:21,954 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 21:48:21,955 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 113 states. [2020-07-08 21:48:21,956 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-08 21:48:21,956 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-08 21:48:21,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:21,965 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2020-07-08 21:48:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-08 21:48:21,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:21,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:21,968 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-08 21:48:21,968 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-08 21:48:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:21,976 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2020-07-08 21:48:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-08 21:48:21,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:21,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:21,978 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 21:48:21,978 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 21:48:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-08 21:48:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2020-07-08 21:48:21,987 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 35 [2020-07-08 21:48:21,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 21:48:21,987 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2020-07-08 21:48:21,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 21:48:21,988 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states and 124 transitions. [2020-07-08 21:48:22,115 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:22,115 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-08 21:48:22,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-08 21:48:22,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:22,117 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] [2020-07-08 21:48:22,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 21:48:22,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:22,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1569420762, now seen corresponding path program 1 times [2020-07-08 21:48:22,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:22,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972838942] [2020-07-08 21:48:22,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:22,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 21:48:22,226 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1145) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1014) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:407) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:381) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:390) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:349) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 21:48:22,233 INFO L168 Benchmark]: Toolchain (without parser) took 3379.17 ms. Allocated memory was 134.7 MB in the beginning and 257.9 MB in the end (delta: 123.2 MB). Free memory was 100.3 MB in the beginning and 147.2 MB in the end (delta: -46.9 MB). Peak memory consumption was 76.3 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,234 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.82 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 175.3 MB in the end (delta: -75.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,236 INFO L168 Benchmark]: Boogie Preprocessor took 49.73 ms. Allocated memory is still 198.2 MB. Free memory was 175.3 MB in the beginning and 173.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,237 INFO L168 Benchmark]: RCFGBuilder took 673.27 ms. Allocated memory is still 198.2 MB. Free memory was 173.1 MB in the beginning and 126.3 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,238 INFO L168 Benchmark]: TraceAbstraction took 2189.63 ms. Allocated memory was 198.2 MB in the beginning and 257.9 MB in the end (delta: 59.8 MB). Free memory was 126.3 MB in the beginning and 147.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:22,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 460.82 ms. Allocated memory was 134.7 MB in the beginning and 198.2 MB in the end (delta: 63.4 MB). Free memory was 99.8 MB in the beginning and 175.3 MB in the end (delta: -75.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.73 ms. Allocated memory is still 198.2 MB. Free memory was 175.3 MB in the beginning and 173.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 673.27 ms. Allocated memory is still 198.2 MB. Free memory was 173.1 MB in the beginning and 126.3 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2189.63 ms. Allocated memory was 198.2 MB in the beginning and 257.9 MB in the end (delta: 59.8 MB). Free memory was 126.3 MB in the beginning and 147.2 MB in the end (delta: -20.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...