/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/float_req_bl_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:13:41,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:13:41,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:13:41,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:13:41,348 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:13:41,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:13:41,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:13:41,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:13:41,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:13:41,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:13:41,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:13:41,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:13:41,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:13:41,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:13:41,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:13:41,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:13:41,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:13:41,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:13:41,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:13:41,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:13:41,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:13:41,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:13:41,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:13:41,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:13:41,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:13:41,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:13:41,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:13:41,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:13:41,389 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:13:41,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:13:41,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:13:41,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:13:41,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:13:41,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:13:41,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:13:41,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:13:41,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:13:41,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:13:41,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:13:41,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:13:41,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:13:41,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:13:41,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:13:41,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:13:41,403 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:13:41,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:13:41,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:13:41,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:41,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:13:41,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:13:41,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:13:41,405 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:13:41,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:13:41,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:13:41,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:13:41,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:13:41,723 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:13:41,724 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2020-07-18 00:13:41,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d93d544/1f312e28eebb486aadb2540c2f49c6ce/FLAGec93f8b28 [2020-07-18 00:13:42,257 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:13:42,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210.c [2020-07-18 00:13:42,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d93d544/1f312e28eebb486aadb2540c2f49c6ce/FLAGec93f8b28 [2020-07-18 00:13:42,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03d93d544/1f312e28eebb486aadb2540c2f49c6ce [2020-07-18 00:13:42,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:42,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:42,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:42,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:42,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:42,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:42" (1/1) ... [2020-07-18 00:13:42,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690d4193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:42, skipping insertion in model container [2020-07-18 00:13:42,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:42" (1/1) ... [2020-07-18 00:13:42,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:42,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:42,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:42,987 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:43,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:43,130 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:43,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43 WrapperNode [2020-07-18 00:13:43,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:43,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:43,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:43,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:43,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (1/1) ... [2020-07-18 00:13:43,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:43,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:43,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:43,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:43,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (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 [2020-07-18 00:13:43,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2020-07-18 00:13:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-18 00:13:43,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2020-07-18 00:13:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-18 00:13:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:44,008 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:44,009 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-07-18 00:13:44,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:44 BoogieIcfgContainer [2020-07-18 00:13:44,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:44,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:44,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:44,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:44,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:42" (1/3) ... [2020-07-18 00:13:44,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1834a7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:44, skipping insertion in model container [2020-07-18 00:13:44,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:43" (2/3) ... [2020-07-18 00:13:44,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1834a7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:44, skipping insertion in model container [2020-07-18 00:13:44,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:44" (3/3) ... [2020-07-18 00:13:44,032 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2020-07-18 00:13:44,043 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:44,051 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:44,066 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:44,084 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:44,085 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:44,085 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:44,085 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:44,085 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:44,085 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:44,086 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:44,086 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-07-18 00:13:44,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-18 00:13:44,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:44,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:44,117 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:44,124 INFO L82 PathProgramCache]: Analyzing trace with hash -3412261, now seen corresponding path program 1 times [2020-07-18 00:13:44,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:44,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603200461] [2020-07-18 00:13:44,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:44,351 INFO L280 TraceCheckUtils]: 0: Hoare triple {162#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~one_modf~0 |old(~one_modf~0)|))} #NULL.base, #NULL.offset := 0, 0; {137#true} is VALID [2020-07-18 00:13:44,352 INFO L280 TraceCheckUtils]: 1: Hoare triple {137#true} #valid := #valid[0 := 0]; {137#true} is VALID [2020-07-18 00:13:44,352 INFO L280 TraceCheckUtils]: 2: Hoare triple {137#true} assume 0 < #StackHeapBarrier; {137#true} is VALID [2020-07-18 00:13:44,353 INFO L280 TraceCheckUtils]: 3: Hoare triple {137#true} ~one_modf~0 := 1.0; {137#true} is VALID [2020-07-18 00:13:44,354 INFO L280 TraceCheckUtils]: 4: Hoare triple {137#true} assume true; {137#true} is VALID [2020-07-18 00:13:44,355 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {137#true} {137#true} #215#return; {137#true} is VALID [2020-07-18 00:13:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:44,395 INFO L280 TraceCheckUtils]: 0: Hoare triple {163#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {137#true} is VALID [2020-07-18 00:13:44,396 INFO L280 TraceCheckUtils]: 1: Hoare triple {137#true} ~iptr.base, ~iptr.offset := #in~iptr.base, #in~iptr.offset; {137#true} is VALID [2020-07-18 00:13:44,397 INFO L280 TraceCheckUtils]: 2: Hoare triple {137#true} havoc ~i0~0; {137#true} is VALID [2020-07-18 00:13:44,397 INFO L280 TraceCheckUtils]: 3: Hoare triple {137#true} havoc ~j0~0; {137#true} is VALID [2020-07-18 00:13:44,398 INFO L280 TraceCheckUtils]: 4: Hoare triple {137#true} havoc ~i~0; {137#true} is VALID [2020-07-18 00:13:44,400 INFO L280 TraceCheckUtils]: 5: Hoare triple {137#true} assume !true; {138#false} is VALID [2020-07-18 00:13:44,401 INFO L280 TraceCheckUtils]: 6: Hoare triple {138#false} ~j0~0 := ~bitwiseAnd(~i0~0 / 8388608, 255) - 127; {138#false} is VALID [2020-07-18 00:13:44,402 INFO L280 TraceCheckUtils]: 7: Hoare triple {138#false} assume ~j0~0 < 23; {138#false} is VALID [2020-07-18 00:13:44,402 INFO L280 TraceCheckUtils]: 8: Hoare triple {138#false} assume ~j0~0 < 0; {138#false} is VALID [2020-07-18 00:13:44,402 INFO L280 TraceCheckUtils]: 9: Hoare triple {138#false} assume !true; {138#false} is VALID [2020-07-18 00:13:44,403 INFO L280 TraceCheckUtils]: 10: Hoare triple {138#false} #res := ~x; {138#false} is VALID [2020-07-18 00:13:44,403 INFO L280 TraceCheckUtils]: 11: Hoare triple {138#false} assume true; {138#false} is VALID [2020-07-18 00:13:44,404 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {138#false} {137#true} #219#return; {138#false} is VALID [2020-07-18 00:13:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:44,431 INFO L280 TraceCheckUtils]: 0: Hoare triple {137#true} ~x := #in~x; {137#true} is VALID [2020-07-18 00:13:44,432 INFO L280 TraceCheckUtils]: 1: Hoare triple {137#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {137#true} is VALID [2020-07-18 00:13:44,432 INFO L280 TraceCheckUtils]: 2: Hoare triple {137#true} assume true; {137#true} is VALID [2020-07-18 00:13:44,433 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {137#true} {138#false} #221#return; {138#false} is VALID [2020-07-18 00:13:44,435 INFO L263 TraceCheckUtils]: 0: Hoare triple {137#true} call ULTIMATE.init(); {162#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~one_modf~0 |old(~one_modf~0)|))} is VALID [2020-07-18 00:13:44,435 INFO L280 TraceCheckUtils]: 1: Hoare triple {162#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~one_modf~0 |old(~one_modf~0)|))} #NULL.base, #NULL.offset := 0, 0; {137#true} is VALID [2020-07-18 00:13:44,436 INFO L280 TraceCheckUtils]: 2: Hoare triple {137#true} #valid := #valid[0 := 0]; {137#true} is VALID [2020-07-18 00:13:44,436 INFO L280 TraceCheckUtils]: 3: Hoare triple {137#true} assume 0 < #StackHeapBarrier; {137#true} is VALID [2020-07-18 00:13:44,436 INFO L280 TraceCheckUtils]: 4: Hoare triple {137#true} ~one_modf~0 := 1.0; {137#true} is VALID [2020-07-18 00:13:44,437 INFO L280 TraceCheckUtils]: 5: Hoare triple {137#true} assume true; {137#true} is VALID [2020-07-18 00:13:44,438 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {137#true} {137#true} #215#return; {137#true} is VALID [2020-07-18 00:13:44,438 INFO L263 TraceCheckUtils]: 7: Hoare triple {137#true} call #t~ret18 := main(); {137#true} is VALID [2020-07-18 00:13:44,439 INFO L280 TraceCheckUtils]: 8: Hoare triple {137#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {137#true} is VALID [2020-07-18 00:13:44,439 INFO L280 TraceCheckUtils]: 9: Hoare triple {137#true} SUMMARY for call ~#iptr~0.base, ~#iptr~0.offset := #Ultimate.allocOnStack(4); srcloc: L81 {137#true} is VALID [2020-07-18 00:13:44,443 INFO L263 TraceCheckUtils]: 10: Hoare triple {137#true} call #t~ret13 := modf_float(~x~0, ~#iptr~0.base, ~#iptr~0.offset); {163#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:44,444 INFO L280 TraceCheckUtils]: 11: Hoare triple {163#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {137#true} is VALID [2020-07-18 00:13:44,444 INFO L280 TraceCheckUtils]: 12: Hoare triple {137#true} ~iptr.base, ~iptr.offset := #in~iptr.base, #in~iptr.offset; {137#true} is VALID [2020-07-18 00:13:44,447 INFO L280 TraceCheckUtils]: 13: Hoare triple {137#true} havoc ~i0~0; {137#true} is VALID [2020-07-18 00:13:44,447 INFO L280 TraceCheckUtils]: 14: Hoare triple {137#true} havoc ~j0~0; {137#true} is VALID [2020-07-18 00:13:44,448 INFO L280 TraceCheckUtils]: 15: Hoare triple {137#true} havoc ~i~0; {137#true} is VALID [2020-07-18 00:13:44,450 INFO L280 TraceCheckUtils]: 16: Hoare triple {137#true} assume !true; {138#false} is VALID [2020-07-18 00:13:44,450 INFO L280 TraceCheckUtils]: 17: Hoare triple {138#false} ~j0~0 := ~bitwiseAnd(~i0~0 / 8388608, 255) - 127; {138#false} is VALID [2020-07-18 00:13:44,451 INFO L280 TraceCheckUtils]: 18: Hoare triple {138#false} assume ~j0~0 < 23; {138#false} is VALID [2020-07-18 00:13:44,451 INFO L280 TraceCheckUtils]: 19: Hoare triple {138#false} assume ~j0~0 < 0; {138#false} is VALID [2020-07-18 00:13:44,451 INFO L280 TraceCheckUtils]: 20: Hoare triple {138#false} assume !true; {138#false} is VALID [2020-07-18 00:13:44,452 INFO L280 TraceCheckUtils]: 21: Hoare triple {138#false} #res := ~x; {138#false} is VALID [2020-07-18 00:13:44,452 INFO L280 TraceCheckUtils]: 22: Hoare triple {138#false} assume true; {138#false} is VALID [2020-07-18 00:13:44,453 INFO L275 TraceCheckUtils]: 23: Hoare quadruple {138#false} {137#true} #219#return; {138#false} is VALID [2020-07-18 00:13:44,453 INFO L280 TraceCheckUtils]: 24: Hoare triple {138#false} ~res~0 := #t~ret13; {138#false} is VALID [2020-07-18 00:13:44,453 INFO L280 TraceCheckUtils]: 25: Hoare triple {138#false} havoc #t~ret13; {138#false} is VALID [2020-07-18 00:13:44,454 INFO L280 TraceCheckUtils]: 26: Hoare triple {138#false} SUMMARY for call #t~mem14 := read~real(~#iptr~0.base, ~#iptr~0.offset, 4); srcloc: L85 {138#false} is VALID [2020-07-18 00:13:44,458 INFO L263 TraceCheckUtils]: 27: Hoare triple {138#false} call #t~ret15 := isnan_float(#t~mem14); {137#true} is VALID [2020-07-18 00:13:44,458 INFO L280 TraceCheckUtils]: 28: Hoare triple {137#true} ~x := #in~x; {137#true} is VALID [2020-07-18 00:13:44,459 INFO L280 TraceCheckUtils]: 29: Hoare triple {137#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {137#true} is VALID [2020-07-18 00:13:44,459 INFO L280 TraceCheckUtils]: 30: Hoare triple {137#true} assume true; {137#true} is VALID [2020-07-18 00:13:44,460 INFO L275 TraceCheckUtils]: 31: Hoare quadruple {137#true} {138#false} #221#return; {138#false} is VALID [2020-07-18 00:13:44,460 INFO L280 TraceCheckUtils]: 32: Hoare triple {138#false} assume -2147483648 <= #t~ret15 && #t~ret15 <= 2147483647; {138#false} is VALID [2020-07-18 00:13:44,460 INFO L280 TraceCheckUtils]: 33: Hoare triple {138#false} #t~short17 := 0 != #t~ret15; {138#false} is VALID [2020-07-18 00:13:44,461 INFO L280 TraceCheckUtils]: 34: Hoare triple {138#false} assume !#t~short17; {138#false} is VALID [2020-07-18 00:13:44,461 INFO L280 TraceCheckUtils]: 35: Hoare triple {138#false} assume #t~short17; {138#false} is VALID [2020-07-18 00:13:44,461 INFO L280 TraceCheckUtils]: 36: Hoare triple {138#false} havoc #t~ret15; {138#false} is VALID [2020-07-18 00:13:44,462 INFO L280 TraceCheckUtils]: 37: Hoare triple {138#false} havoc #t~short17; {138#false} is VALID [2020-07-18 00:13:44,465 INFO L280 TraceCheckUtils]: 38: Hoare triple {138#false} havoc #t~mem14; {138#false} is VALID [2020-07-18 00:13:44,465 INFO L280 TraceCheckUtils]: 39: Hoare triple {138#false} havoc #t~ret16; {138#false} is VALID [2020-07-18 00:13:44,465 INFO L280 TraceCheckUtils]: 40: Hoare triple {138#false} assume !false; {138#false} is VALID [2020-07-18 00:13:44,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:13:44,641 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:44,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603200461] [2020-07-18 00:13:44,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:44,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 00:13:44,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166023287] [2020-07-18 00:13:44,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-07-18 00:13:44,671 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:44,676 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 00:13:44,753 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:44,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 00:13:44,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:44,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 00:13:44,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:13:44,768 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 7 states. [2020-07-18 00:13:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:46,050 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2020-07-18 00:13:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 00:13:46,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-07-18 00:13:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 00:13:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 290 transitions. [2020-07-18 00:13:46,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 00:13:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 290 transitions. [2020-07-18 00:13:46,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 290 transitions. [2020-07-18 00:13:46,422 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 290 edges. 290 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:46,442 INFO L225 Difference]: With dead ends: 251 [2020-07-18 00:13:46,442 INFO L226 Difference]: Without dead ends: 120 [2020-07-18 00:13:46,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-18 00:13:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-18 00:13:46,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-18 00:13:46,601 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:46,602 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 120 states. [2020-07-18 00:13:46,602 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-18 00:13:46,602 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-18 00:13:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:46,615 INFO L93 Difference]: Finished difference Result 120 states and 123 transitions. [2020-07-18 00:13:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2020-07-18 00:13:46,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:46,617 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:46,617 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-18 00:13:46,617 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-18 00:13:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:46,627 INFO L93 Difference]: Finished difference Result 120 states and 123 transitions. [2020-07-18 00:13:46,628 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2020-07-18 00:13:46,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:46,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:46,629 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:46,630 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:46,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-18 00:13:46,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 123 transitions. [2020-07-18 00:13:46,639 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 123 transitions. Word has length 41 [2020-07-18 00:13:46,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:46,639 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 123 transitions. [2020-07-18 00:13:46,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 00:13:46,640 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 120 states and 123 transitions. [2020-07-18 00:13:46,797 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 123 edges. 123 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:46,797 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2020-07-18 00:13:46,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-18 00:13:46,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:46,802 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:46,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:46,802 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:46,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:46,803 INFO L82 PathProgramCache]: Analyzing trace with hash 376809565, now seen corresponding path program 1 times [2020-07-18 00:13:46,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:46,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1005213117] [2020-07-18 00:13:46,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:46,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:13:46,876 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:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) 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.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:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) 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) [2020-07-18 00:13:46,883 INFO L168 Benchmark]: Toolchain (without parser) took 4190.59 ms. Allocated memory was 144.2 MB in the beginning and 251.7 MB in the end (delta: 107.5 MB). Free memory was 100.8 MB in the beginning and 210.3 MB in the end (delta: -109.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:13:46,884 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:46,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.37 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 178.9 MB in the end (delta: -78.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:46,886 INFO L168 Benchmark]: Boogie Preprocessor took 65.78 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 175.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:46,887 INFO L168 Benchmark]: RCFGBuilder took 821.44 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 123.4 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:46,888 INFO L168 Benchmark]: TraceAbstraction took 2858.55 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 122.7 MB in the beginning and 210.3 MB in the end (delta: -87.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 00:13:46,892 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 0.27 ms. Allocated memory is still 144.2 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 435.37 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 100.3 MB in the beginning and 178.9 MB in the end (delta: -78.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.78 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 175.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 821.44 ms. Allocated memory is still 200.8 MB. Free memory was 175.8 MB in the beginning and 123.4 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2858.55 ms. Allocated memory was 200.8 MB in the beginning and 251.7 MB in the end (delta: 50.9 MB). Free memory was 122.7 MB in the beginning and 210.3 MB in the end (delta: -87.6 MB). There was no memory consumed. 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...