/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:34:30,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:34:30,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:34:30,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:34:30,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:34:30,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:34:30,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:34:30,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:34:30,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:34:30,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:34:30,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:34:30,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:34:30,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:34:30,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:34:30,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:34:30,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:34:30,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:34:30,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:34:30,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:34:30,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:34:30,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:34:30,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:34:30,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:34:30,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:34:30,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 18:34:30,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 18:34:30,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 18:34:30,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 18:34:30,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 18:34:30,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 18:34:30,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 18:34:30,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 18:34:30,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 18:34:30,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 18:34:30,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 18:34:30,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 18:34:30,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 18:34:30,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 18:34:30,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:34:30,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:34:30,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:34:30,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:34:30,777 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:34:30,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:34:30,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:34:30,779 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:34:30,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:34:30,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:34:30,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:34:30,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:34:30,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:34:30,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:34:30,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:34:30,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:34:30,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:34:30,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:34:30,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:34:30,784 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:34:30,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:34:30,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:34:30,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:34:30,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:34:30,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:34:30,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:34:30,787 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:34:31,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:34:31,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:34:31,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:34:31,081 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:34:31,081 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:34:31,082 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b.c [2020-07-10 18:34:31,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b037b1/8fbb9fedfcdf4703972cec31f8e5728c/FLAG154d7f6ad [2020-07-10 18:34:31,610 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:34:31,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730b.c [2020-07-10 18:34:31,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b037b1/8fbb9fedfcdf4703972cec31f8e5728c/FLAG154d7f6ad [2020-07-10 18:34:31,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e98b037b1/8fbb9fedfcdf4703972cec31f8e5728c [2020-07-10 18:34:31,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:34:31,992 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:34:31,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:34:31,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:34:31,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:34:31,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:34:31" (1/1) ... [2020-07-10 18:34:32,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0c752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:31, skipping insertion in model container [2020-07-10 18:34:32,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:34:31" (1/1) ... [2020-07-10 18:34:32,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:34:32,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:34:32,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:34:32,251 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:34:32,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:34:32,426 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:34:32,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32 WrapperNode [2020-07-10 18:34:32,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:34:32,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:34:32,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:34:32,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:34:32,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (1/1) ... [2020-07-10 18:34:32,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:34:32,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:34:32,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:34:32,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:34:32,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (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 [2020-07-10 18:34:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:34:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:34:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2020-07-10 18:34:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-10 18:34:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:34:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:34:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:34:33,316 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:34:33,317 INFO L295 CfgBuilder]: Removed 10 assume(true) statements. [2020-07-10 18:34:33,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:34:33 BoogieIcfgContainer [2020-07-10 18:34:33,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:34:33,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:34:33,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:34:33,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:34:33,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:34:31" (1/3) ... [2020-07-10 18:34:33,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52783319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:34:33, skipping insertion in model container [2020-07-10 18:34:33,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:34:32" (2/3) ... [2020-07-10 18:34:33,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52783319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:34:33, skipping insertion in model container [2020-07-10 18:34:33,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:34:33" (3/3) ... [2020-07-10 18:34:33,331 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b.c [2020-07-10 18:34:33,341 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:34:33,348 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:34:33,361 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:34:33,382 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:34:33,383 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:34:33,383 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:34:33,383 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:34:33,383 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:34:33,384 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:34:33,384 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:34:33,384 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:34:33,402 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-07-10 18:34:33,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-10 18:34:33,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:34:33,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 18:34:33,416 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:34:33,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:34:33,422 INFO L82 PathProgramCache]: Analyzing trace with hash -641383521, now seen corresponding path program 1 times [2020-07-10 18:34:33,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:34:33,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154218406] [2020-07-10 18:34:33,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:34:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:34:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:34:33,655 INFO L280 TraceCheckUtils]: 0: Hoare triple {198#(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; {170#true} is VALID [2020-07-10 18:34:33,656 INFO L280 TraceCheckUtils]: 1: Hoare triple {170#true} #valid := #valid[0 := 0]; {170#true} is VALID [2020-07-10 18:34:33,656 INFO L280 TraceCheckUtils]: 2: Hoare triple {170#true} assume 0 < #StackHeapBarrier; {170#true} is VALID [2020-07-10 18:34:33,657 INFO L280 TraceCheckUtils]: 3: Hoare triple {170#true} ~one_sqrt~0 := 1.0; {170#true} is VALID [2020-07-10 18:34:33,658 INFO L280 TraceCheckUtils]: 4: Hoare triple {170#true} ~tiny_sqrt~0 := 1.0E-300; {170#true} is VALID [2020-07-10 18:34:33,658 INFO L280 TraceCheckUtils]: 5: Hoare triple {170#true} assume true; {170#true} is VALID [2020-07-10 18:34:33,659 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {170#true} {170#true} #322#return; {170#true} is VALID [2020-07-10 18:34:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:34:33,694 INFO L280 TraceCheckUtils]: 0: Hoare triple {199#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {170#true} is VALID [2020-07-10 18:34:33,695 INFO L280 TraceCheckUtils]: 1: Hoare triple {170#true} havoc ~z~0; {170#true} is VALID [2020-07-10 18:34:33,695 INFO L280 TraceCheckUtils]: 2: Hoare triple {170#true} ~sign~0 := -2147483648; {170#true} is VALID [2020-07-10 18:34:33,696 INFO L280 TraceCheckUtils]: 3: Hoare triple {170#true} havoc ~r~0; {170#true} is VALID [2020-07-10 18:34:33,696 INFO L280 TraceCheckUtils]: 4: Hoare triple {170#true} havoc ~t1~0; {170#true} is VALID [2020-07-10 18:34:33,697 INFO L280 TraceCheckUtils]: 5: Hoare triple {170#true} havoc ~s1~0; {170#true} is VALID [2020-07-10 18:34:33,697 INFO L280 TraceCheckUtils]: 6: Hoare triple {170#true} havoc ~ix1~0; {170#true} is VALID [2020-07-10 18:34:33,697 INFO L280 TraceCheckUtils]: 7: Hoare triple {170#true} havoc ~q1~0; {170#true} is VALID [2020-07-10 18:34:33,698 INFO L280 TraceCheckUtils]: 8: Hoare triple {170#true} havoc ~ix0~0; {170#true} is VALID [2020-07-10 18:34:33,698 INFO L280 TraceCheckUtils]: 9: Hoare triple {170#true} havoc ~s0~0; {170#true} is VALID [2020-07-10 18:34:33,699 INFO L280 TraceCheckUtils]: 10: Hoare triple {170#true} havoc ~q~0; {170#true} is VALID [2020-07-10 18:34:33,711 INFO L280 TraceCheckUtils]: 11: Hoare triple {170#true} havoc ~m~0; {170#true} is VALID [2020-07-10 18:34:33,711 INFO L280 TraceCheckUtils]: 12: Hoare triple {170#true} havoc ~t~0; {170#true} is VALID [2020-07-10 18:34:33,712 INFO L280 TraceCheckUtils]: 13: Hoare triple {170#true} havoc ~i~0; {170#true} is VALID [2020-07-10 18:34:33,715 INFO L280 TraceCheckUtils]: 14: Hoare triple {170#true} assume !true; {171#false} is VALID [2020-07-10 18:34:33,715 INFO L280 TraceCheckUtils]: 15: Hoare triple {171#false} assume 2146435072 == ~bitwiseAnd(~ix0~0, 2146435072); {171#false} is VALID [2020-07-10 18:34:33,715 INFO L280 TraceCheckUtils]: 16: Hoare triple {171#false} #res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x, ~x), ~x); {171#false} is VALID [2020-07-10 18:34:33,716 INFO L280 TraceCheckUtils]: 17: Hoare triple {171#false} assume true; {171#false} is VALID [2020-07-10 18:34:33,716 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {171#false} {170#true} #318#return; {171#false} is VALID [2020-07-10 18:34:33,722 INFO L263 TraceCheckUtils]: 0: Hoare triple {170#true} call ULTIMATE.init(); {198#(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 [2020-07-10 18:34:33,722 INFO L280 TraceCheckUtils]: 1: Hoare triple {198#(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; {170#true} is VALID [2020-07-10 18:34:33,722 INFO L280 TraceCheckUtils]: 2: Hoare triple {170#true} #valid := #valid[0 := 0]; {170#true} is VALID [2020-07-10 18:34:33,723 INFO L280 TraceCheckUtils]: 3: Hoare triple {170#true} assume 0 < #StackHeapBarrier; {170#true} is VALID [2020-07-10 18:34:33,723 INFO L280 TraceCheckUtils]: 4: Hoare triple {170#true} ~one_sqrt~0 := 1.0; {170#true} is VALID [2020-07-10 18:34:33,723 INFO L280 TraceCheckUtils]: 5: Hoare triple {170#true} ~tiny_sqrt~0 := 1.0E-300; {170#true} is VALID [2020-07-10 18:34:33,724 INFO L280 TraceCheckUtils]: 6: Hoare triple {170#true} assume true; {170#true} is VALID [2020-07-10 18:34:33,724 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {170#true} {170#true} #322#return; {170#true} is VALID [2020-07-10 18:34:33,724 INFO L263 TraceCheckUtils]: 8: Hoare triple {170#true} call #t~ret12 := main(); {170#true} is VALID [2020-07-10 18:34:33,725 INFO L280 TraceCheckUtils]: 9: Hoare triple {170#true} ~x~0 := ~someUnaryDOUBLEoperation(0.0); {170#true} is VALID [2020-07-10 18:34:33,727 INFO L263 TraceCheckUtils]: 10: Hoare triple {170#true} call #t~ret9 := __ieee754_sqrt(~x~0); {199#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:34:33,727 INFO L280 TraceCheckUtils]: 11: Hoare triple {199#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {170#true} is VALID [2020-07-10 18:34:33,727 INFO L280 TraceCheckUtils]: 12: Hoare triple {170#true} havoc ~z~0; {170#true} is VALID [2020-07-10 18:34:33,728 INFO L280 TraceCheckUtils]: 13: Hoare triple {170#true} ~sign~0 := -2147483648; {170#true} is VALID [2020-07-10 18:34:33,728 INFO L280 TraceCheckUtils]: 14: Hoare triple {170#true} havoc ~r~0; {170#true} is VALID [2020-07-10 18:34:33,729 INFO L280 TraceCheckUtils]: 15: Hoare triple {170#true} havoc ~t1~0; {170#true} is VALID [2020-07-10 18:34:33,729 INFO L280 TraceCheckUtils]: 16: Hoare triple {170#true} havoc ~s1~0; {170#true} is VALID [2020-07-10 18:34:33,729 INFO L280 TraceCheckUtils]: 17: Hoare triple {170#true} havoc ~ix1~0; {170#true} is VALID [2020-07-10 18:34:33,729 INFO L280 TraceCheckUtils]: 18: Hoare triple {170#true} havoc ~q1~0; {170#true} is VALID [2020-07-10 18:34:33,730 INFO L280 TraceCheckUtils]: 19: Hoare triple {170#true} havoc ~ix0~0; {170#true} is VALID [2020-07-10 18:34:33,730 INFO L280 TraceCheckUtils]: 20: Hoare triple {170#true} havoc ~s0~0; {170#true} is VALID [2020-07-10 18:34:33,730 INFO L280 TraceCheckUtils]: 21: Hoare triple {170#true} havoc ~q~0; {170#true} is VALID [2020-07-10 18:34:33,731 INFO L280 TraceCheckUtils]: 22: Hoare triple {170#true} havoc ~m~0; {170#true} is VALID [2020-07-10 18:34:33,731 INFO L280 TraceCheckUtils]: 23: Hoare triple {170#true} havoc ~t~0; {170#true} is VALID [2020-07-10 18:34:33,731 INFO L280 TraceCheckUtils]: 24: Hoare triple {170#true} havoc ~i~0; {170#true} is VALID [2020-07-10 18:34:33,732 INFO L280 TraceCheckUtils]: 25: Hoare triple {170#true} assume !true; {171#false} is VALID [2020-07-10 18:34:33,733 INFO L280 TraceCheckUtils]: 26: Hoare triple {171#false} assume 2146435072 == ~bitwiseAnd(~ix0~0, 2146435072); {171#false} is VALID [2020-07-10 18:34:33,733 INFO L280 TraceCheckUtils]: 27: Hoare triple {171#false} #res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x, ~x), ~x); {171#false} is VALID [2020-07-10 18:34:33,733 INFO L280 TraceCheckUtils]: 28: Hoare triple {171#false} assume true; {171#false} is VALID [2020-07-10 18:34:33,734 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {171#false} {170#true} #318#return; {171#false} is VALID [2020-07-10 18:34:33,734 INFO L280 TraceCheckUtils]: 30: Hoare triple {171#false} ~res~0 := #t~ret9; {171#false} is VALID [2020-07-10 18:34:33,734 INFO L280 TraceCheckUtils]: 31: Hoare triple {171#false} havoc #t~ret9; {171#false} is VALID [2020-07-10 18:34:33,735 INFO L280 TraceCheckUtils]: 32: Hoare triple {171#false} #t~short11 := ~someBinaryDOUBLEComparisonOperation(~res~0, ~someUnaryDOUBLEoperation(0.0)); {171#false} is VALID [2020-07-10 18:34:33,735 INFO L280 TraceCheckUtils]: 33: Hoare triple {171#false} assume !#t~short11; {171#false} is VALID [2020-07-10 18:34:33,735 INFO L280 TraceCheckUtils]: 34: Hoare triple {171#false} assume !#t~short11; {171#false} is VALID [2020-07-10 18:34:33,736 INFO L280 TraceCheckUtils]: 35: Hoare triple {171#false} havoc #t~short11; {171#false} is VALID [2020-07-10 18:34:33,736 INFO L280 TraceCheckUtils]: 36: Hoare triple {171#false} havoc #t~ret10; {171#false} is VALID [2020-07-10 18:34:33,736 INFO L280 TraceCheckUtils]: 37: Hoare triple {171#false} assume !false; {171#false} is VALID [2020-07-10 18:34:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:34:33,741 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:34:33,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154218406] [2020-07-10 18:34:33,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:34:33,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:34:33,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842653200] [2020-07-10 18:34:33,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-07-10 18:34:33,755 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:34:33,759 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:34:33,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:34:33,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:34:33,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:34:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:34:33,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:34:33,825 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 4 states. [2020-07-10 18:34:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:34:34,904 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2020-07-10 18:34:34,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:34:34,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2020-07-10 18:34:34,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:34:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:34:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2020-07-10 18:34:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:34:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2020-07-10 18:34:34,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 371 transitions. [2020-07-10 18:34:35,340 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 371 edges. 371 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:34:35,378 INFO L225 Difference]: With dead ends: 308 [2020-07-10 18:34:35,378 INFO L226 Difference]: Without dead ends: 159 [2020-07-10 18:34:35,385 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 [2020-07-10 18:34:35,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-10 18:34:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-07-10 18:34:35,576 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:34:35,577 INFO L82 GeneralOperation]: Start isEquivalent. First operand 159 states. Second operand 159 states. [2020-07-10 18:34:35,577 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 159 states. [2020-07-10 18:34:35,578 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 159 states. [2020-07-10 18:34:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:34:35,593 INFO L93 Difference]: Finished difference Result 159 states and 179 transitions. [2020-07-10 18:34:35,593 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 179 transitions. [2020-07-10 18:34:35,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:34:35,595 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:34:35,596 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 159 states. [2020-07-10 18:34:35,596 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 159 states. [2020-07-10 18:34:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:34:35,606 INFO L93 Difference]: Finished difference Result 159 states and 179 transitions. [2020-07-10 18:34:35,606 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 179 transitions. [2020-07-10 18:34:35,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:34:35,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:34:35,609 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:34:35,609 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:34:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-10 18:34:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 179 transitions. [2020-07-10 18:34:35,619 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 179 transitions. Word has length 38 [2020-07-10 18:34:35,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:34:35,620 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 179 transitions. [2020-07-10 18:34:35,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:34:35,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 159 states and 179 transitions. [2020-07-10 18:34:35,811 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:34:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 179 transitions. [2020-07-10 18:34:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-10 18:34:35,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:34:35,815 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] [2020-07-10 18:34:35,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:34:35,816 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:34:35,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:34:35,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1122039797, now seen corresponding path program 1 times [2020-07-10 18:34:35,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:34:35,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810729116] [2020-07-10 18:34:35,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:34:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:34:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:34:35,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:34:35,925 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:1139) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1004) 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.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) 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) [2020-07-10 18:34:35,931 INFO L168 Benchmark]: Toolchain (without parser) took 3939.29 ms. Allocated memory was 145.2 MB in the beginning and 248.0 MB in the end (delta: 102.8 MB). Free memory was 103.5 MB in the beginning and 156.5 MB in the end (delta: -53.0 MB). Peak memory consumption was 49.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,932 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.22 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 103.3 MB in the beginning and 180.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,934 INFO L168 Benchmark]: Boogie Preprocessor took 75.65 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 177.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,935 INFO L168 Benchmark]: RCFGBuilder took 819.39 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 114.1 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,936 INFO L168 Benchmark]: TraceAbstraction took 2604.65 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 114.1 MB in the beginning and 156.5 MB in the end (delta: -42.5 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-10 18:34:35,939 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 0.82 ms. Allocated memory is still 145.2 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 434.22 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 103.3 MB in the beginning and 180.9 MB in the end (delta: -77.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.65 ms. Allocated memory is still 202.9 MB. Free memory was 180.9 MB in the beginning and 177.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 819.39 ms. Allocated memory is still 202.9 MB. Free memory was 177.8 MB in the beginning and 114.1 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2604.65 ms. Allocated memory was 202.9 MB in the beginning and 248.0 MB in the end (delta: 45.1 MB). Free memory was 114.1 MB in the beginning and 156.5 MB in the end (delta: -42.5 MB). Peak memory consumption was 2.6 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...