/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_1032c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 21:48:25,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 21:48:25,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 21:48:25,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 21:48:25,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 21:48:25,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 21:48:25,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 21:48:25,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 21:48:25,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 21:48:25,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 21:48:25,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 21:48:25,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 21:48:25,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 21:48:25,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 21:48:25,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 21:48:25,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 21:48:25,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 21:48:25,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 21:48:25,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 21:48:25,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 21:48:25,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 21:48:25,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 21:48:25,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 21:48:25,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 21:48:25,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 21:48:25,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 21:48:25,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 21:48:25,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 21:48:25,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 21:48:25,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 21:48:25,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 21:48:25,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 21:48:25,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 21:48:25,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 21:48:25,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 21:48:25,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 21:48:25,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 21:48:25,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 21:48:25,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 21:48:25,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 21:48:25,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 21:48:25,897 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 21:48:25,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 21:48:25,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 21:48:25,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 21:48:25,908 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 21:48:25,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 21:48:25,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 21:48:25,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 21:48:25,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 21:48:25,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 21:48:25,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 21:48:25,910 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 21:48:25,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 21:48:25,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 21:48:25,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 21:48:25,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 21:48:25,911 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 21:48:25,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 21:48:25,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 21:48:25,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 21:48:25,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 21:48:25,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 21:48:25,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 21:48:25,912 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 21:48:26,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 21:48:26,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 21:48:26,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 21:48:26,206 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 21:48:26,207 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 21:48:26,207 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032c.c [2020-07-08 21:48:26,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c553947/012201e582b44ad5ac142e9c4a917476/FLAG6976da68c [2020-07-08 21:48:26,715 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 21:48:26,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032c.c [2020-07-08 21:48:26,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c553947/012201e582b44ad5ac142e9c4a917476/FLAG6976da68c [2020-07-08 21:48:27,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61c553947/012201e582b44ad5ac142e9c4a917476 [2020-07-08 21:48:27,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 21:48:27,128 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 21:48:27,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:27,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 21:48:27,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 21:48:27,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7779094a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27, skipping insertion in model container [2020-07-08 21:48:27,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 21:48:27,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 21:48:27,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:27,361 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 21:48:27,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 21:48:27,512 INFO L208 MainTranslator]: Completed translation [2020-07-08 21:48:27,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27 WrapperNode [2020-07-08 21:48:27,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 21:48:27,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 21:48:27,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 21:48:27,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 21:48:27,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (1/1) ... [2020-07-08 21:48:27,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 21:48:27,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 21:48:27,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 21:48:27,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 21:48:27,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (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 21:48:27,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 21:48:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 21:48:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-08 21:48:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-08 21:48:27,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 21:48:27,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 21:48:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-08 21:48:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-08 21:48:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-08 21:48:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 21:48:27,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 21:48:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 21:48:27,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-08 21:48:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-08 21:48:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 21:48:27,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 21:48:27,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 21:48:28,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 21:48:28,197 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-08 21:48:28,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:28 BoogieIcfgContainer [2020-07-08 21:48:28,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 21:48:28,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 21:48:28,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 21:48:28,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 21:48:28,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 09:48:27" (1/3) ... [2020-07-08 21:48:28,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1103fa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:28, skipping insertion in model container [2020-07-08 21:48:28,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 09:48:27" (2/3) ... [2020-07-08 21:48:28,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1103fa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 09:48:28, skipping insertion in model container [2020-07-08 21:48:28,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 09:48:28" (3/3) ... [2020-07-08 21:48:28,216 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032c.c [2020-07-08 21:48:28,227 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 21:48:28,236 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 21:48:28,249 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 21:48:28,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 21:48:28,270 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 21:48:28,270 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 21:48:28,270 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 21:48:28,272 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 21:48:28,272 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 21:48:28,273 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 21:48:28,273 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 21:48:28,288 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-07-08 21:48:28,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-08 21:48:28,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:28,301 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] [2020-07-08 21:48:28,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:28,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:28,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1159815618, now seen corresponding path program 1 times [2020-07-08 21:48:28,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:28,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883737657] [2020-07-08 21:48:28,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:28,531 INFO L280 TraceCheckUtils]: 0: Hoare triple {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-08 21:48:28,532 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-08 21:48:28,533 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-08 21:48:28,533 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-08 21:48:28,534 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {83#true} {83#true} #128#return; {83#true} is VALID [2020-07-08 21:48:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:28,569 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-08 21:48:28,570 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} havoc ~w~0; {83#true} is VALID [2020-07-08 21:48:28,570 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} havoc ~exponent_less_127~0; {83#true} is VALID [2020-07-08 21:48:28,571 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-08 21:48:28,572 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {84#false} is VALID [2020-07-08 21:48:28,572 INFO L280 TraceCheckUtils]: 5: Hoare triple {84#false} assume !(~exponent_less_127~0 < 23); {84#false} is VALID [2020-07-08 21:48:28,573 INFO L280 TraceCheckUtils]: 6: Hoare triple {84#false} assume 128 == ~exponent_less_127~0; {84#false} is VALID [2020-07-08 21:48:28,573 INFO L280 TraceCheckUtils]: 7: Hoare triple {84#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {84#false} is VALID [2020-07-08 21:48:28,573 INFO L280 TraceCheckUtils]: 8: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-08 21:48:28,574 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {84#false} {83#true} #132#return; {84#false} is VALID [2020-07-08 21:48:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 21:48:28,585 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-08 21:48:28,586 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} havoc ~ix~0; {83#true} is VALID [2020-07-08 21:48:28,587 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-08 21:48:28,587 INFO L280 TraceCheckUtils]: 3: Hoare triple {84#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {84#false} is VALID [2020-07-08 21:48:28,588 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {84#false} is VALID [2020-07-08 21:48:28,588 INFO L280 TraceCheckUtils]: 5: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-08 21:48:28,588 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {84#false} {84#false} #134#return; {84#false} is VALID [2020-07-08 21:48:28,591 INFO L263 TraceCheckUtils]: 0: Hoare triple {83#true} call ULTIMATE.init(); {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 21:48:28,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-08 21:48:28,591 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-08 21:48:28,592 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-08 21:48:28,592 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-08 21:48:28,593 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {83#true} {83#true} #128#return; {83#true} is VALID [2020-07-08 21:48:28,593 INFO L263 TraceCheckUtils]: 6: Hoare triple {83#true} call #t~ret8 := main(); {83#true} is VALID [2020-07-08 21:48:28,594 INFO L280 TraceCheckUtils]: 7: Hoare triple {83#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {83#true} is VALID [2020-07-08 21:48:28,596 INFO L263 TraceCheckUtils]: 8: Hoare triple {83#true} call #t~ret6 := round_float(~x~0); {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:48:28,596 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-08 21:48:28,596 INFO L280 TraceCheckUtils]: 10: Hoare triple {83#true} havoc ~w~0; {83#true} is VALID [2020-07-08 21:48:28,597 INFO L280 TraceCheckUtils]: 11: Hoare triple {83#true} havoc ~exponent_less_127~0; {83#true} is VALID [2020-07-08 21:48:28,598 INFO L280 TraceCheckUtils]: 12: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-08 21:48:28,598 INFO L280 TraceCheckUtils]: 13: Hoare triple {84#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {84#false} is VALID [2020-07-08 21:48:28,599 INFO L280 TraceCheckUtils]: 14: Hoare triple {84#false} assume !(~exponent_less_127~0 < 23); {84#false} is VALID [2020-07-08 21:48:28,599 INFO L280 TraceCheckUtils]: 15: Hoare triple {84#false} assume 128 == ~exponent_less_127~0; {84#false} is VALID [2020-07-08 21:48:28,599 INFO L280 TraceCheckUtils]: 16: Hoare triple {84#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {84#false} is VALID [2020-07-08 21:48:28,600 INFO L280 TraceCheckUtils]: 17: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-08 21:48:28,600 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {84#false} {83#true} #132#return; {84#false} is VALID [2020-07-08 21:48:28,600 INFO L280 TraceCheckUtils]: 19: Hoare triple {84#false} ~res~0 := #t~ret6; {84#false} is VALID [2020-07-08 21:48:28,601 INFO L280 TraceCheckUtils]: 20: Hoare triple {84#false} havoc #t~ret6; {84#false} is VALID [2020-07-08 21:48:28,601 INFO L263 TraceCheckUtils]: 21: Hoare triple {84#false} call #t~ret7 := isinf_float(~res~0); {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-08 21:48:28,601 INFO L280 TraceCheckUtils]: 22: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-08 21:48:28,602 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#true} havoc ~ix~0; {83#true} is VALID [2020-07-08 21:48:28,602 INFO L280 TraceCheckUtils]: 24: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-08 21:48:28,603 INFO L280 TraceCheckUtils]: 25: Hoare triple {84#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {84#false} is VALID [2020-07-08 21:48:28,603 INFO L280 TraceCheckUtils]: 26: Hoare triple {84#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {84#false} is VALID [2020-07-08 21:48:28,603 INFO L280 TraceCheckUtils]: 27: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-08 21:48:28,604 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {84#false} {84#false} #134#return; {84#false} is VALID [2020-07-08 21:48:28,604 INFO L280 TraceCheckUtils]: 29: Hoare triple {84#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {84#false} is VALID [2020-07-08 21:48:28,604 INFO L280 TraceCheckUtils]: 30: Hoare triple {84#false} assume 0 == #t~ret7; {84#false} is VALID [2020-07-08 21:48:28,605 INFO L280 TraceCheckUtils]: 31: Hoare triple {84#false} havoc #t~ret7; {84#false} is VALID [2020-07-08 21:48:28,605 INFO L280 TraceCheckUtils]: 32: Hoare triple {84#false} assume !false; {84#false} is VALID [2020-07-08 21:48:28,611 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 21:48:28,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883737657] [2020-07-08 21:48:28,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 21:48:28,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-08 21:48:28,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208269409] [2020-07-08 21:48:28,622 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-07-08 21:48:28,625 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 21:48:28,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-08 21:48:28,686 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:28,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-08 21:48:28,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 21:48:28,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-08 21:48:28,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-08 21:48:28,700 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 4 states. [2020-07-08 21:48:29,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:29,362 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2020-07-08 21:48:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-08 21:48:29,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-07-08 21:48:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 21:48:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:29,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-08 21:48:29,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-08 21:48:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-08 21:48:29,383 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 170 transitions. [2020-07-08 21:48:29,580 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:29,597 INFO L225 Difference]: With dead ends: 147 [2020-07-08 21:48:29,597 INFO L226 Difference]: Without dead ends: 73 [2020-07-08 21:48:29,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-08 21:48:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-08 21:48:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-07-08 21:48:29,704 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 21:48:29,704 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 73 states. [2020-07-08 21:48:29,705 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-08 21:48:29,705 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-08 21:48:29,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:29,713 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-07-08 21:48:29,713 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-08 21:48:29,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:29,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:29,715 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-08 21:48:29,715 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-08 21:48:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 21:48:29,723 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-07-08 21:48:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-08 21:48:29,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 21:48:29,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 21:48:29,726 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 21:48:29,726 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 21:48:29,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-08 21:48:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-07-08 21:48:29,733 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 33 [2020-07-08 21:48:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 21:48:29,734 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-07-08 21:48:29,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-08 21:48:29,735 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 77 transitions. [2020-07-08 21:48:29,844 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 21:48:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-08 21:48:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-08 21:48:29,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 21:48:29,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 21:48:29,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 21:48:29,848 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 21:48:29,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 21:48:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1327205882, now seen corresponding path program 1 times [2020-07-08 21:48:29,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 21:48:29,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469287475] [2020-07-08 21:48:29,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 21:48:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 21:48:30,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 21:48:30,020 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.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1012) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1159) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) 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 21:48:30,026 INFO L168 Benchmark]: Toolchain (without parser) took 2898.00 ms. Allocated memory was 144.7 MB in the beginning and 246.4 MB in the end (delta: 101.7 MB). Free memory was 102.9 MB in the beginning and 218.3 MB in the end (delta: -115.4 MB). Peak memory consumption was 111.0 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,027 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.78 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 102.7 MB in the beginning and 182.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,029 INFO L168 Benchmark]: Boogie Preprocessor took 49.78 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 180.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,030 INFO L168 Benchmark]: RCFGBuilder took 639.55 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 145.5 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,031 INFO L168 Benchmark]: TraceAbstraction took 1819.07 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 144.8 MB in the beginning and 218.3 MB in the end (delta: -73.5 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. [2020-07-08 21:48:30,037 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 0.21 ms. Allocated memory is still 144.7 MB. Free memory was 121.4 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 383.78 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 102.7 MB in the beginning and 182.5 MB in the end (delta: -79.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.78 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 180.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 639.55 ms. Allocated memory is still 203.4 MB. Free memory was 180.1 MB in the beginning and 145.5 MB in the end (delta: 34.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1819.07 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 144.8 MB in the beginning and 218.3 MB in the end (delta: -73.5 MB). Peak memory consumption was 94.2 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.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...