/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_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:39:24,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:39:24,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:39:24,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:39:24,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:39:24,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:39:24,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:39:24,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:39:24,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:39:24,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:39:24,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:39:24,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:39:24,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:39:24,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:39:24,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:39:24,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:39:24,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:39:24,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:39:24,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:39:24,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:39:24,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:39:24,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:39:24,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:39:24,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:39:24,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:39:24,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:39:24,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:39:24,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:39:24,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:39:24,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 04:39:24,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 04:39:24,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 04:39:24,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 04:39:24,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 04:39:24,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 04:39:24,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 04:39:24,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 04:39:24,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 04:39:24,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:39:24,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:39:24,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:39:24,494 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 04:39:24,516 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:39:24,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:39:24,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:39:24,519 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:39:24,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:39:24,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:39:24,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:39:24,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:39:24,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:39:24,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:39:24,521 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:39:24,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:39:24,522 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:39:24,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:39:24,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:39:24,523 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:39:24,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:39:24,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:39:24,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:24,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:39:24,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:39:24,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:39:24,524 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 [2020-07-18 04:39:24,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:39:24,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:39:24,822 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:39:24,824 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:39:24,824 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:39:24,825 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1051.c [2020-07-18 04:39:24,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135baf829/4f8d520e530745069bc57a09943164b1/FLAG392dee3c2 [2020-07-18 04:39:25,286 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:39:25,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1051.c [2020-07-18 04:39:25,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135baf829/4f8d520e530745069bc57a09943164b1/FLAG392dee3c2 [2020-07-18 04:39:25,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/135baf829/4f8d520e530745069bc57a09943164b1 [2020-07-18 04:39:25,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:39:25,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:39:25,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:25,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:39:25,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:39:25,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df0f78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25, skipping insertion in model container [2020-07-18 04:39:25,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:39:25,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:39:25,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:25,914 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:39:25,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:25,968 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:39:25,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25 WrapperNode [2020-07-18 04:39:25,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:25,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:39:25,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:39:25,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:39:26,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:26,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:39:26,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:39:26,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:39:26,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:39:26,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (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 04:39:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:39:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:39:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-07-18 04:39:26,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-07-18 04:39:26,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:39:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:39:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-18 04:39:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-07-18 04:39:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:39:26,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-07-18 04:39:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:39:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:39:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:39:26,680 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:39:26,680 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-18 04:39:26,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:26 BoogieIcfgContainer [2020-07-18 04:39:26,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:39:26,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:39:26,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:39:26,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:39:26,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:39:25" (1/3) ... [2020-07-18 04:39:26,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff8d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:26, skipping insertion in model container [2020-07-18 04:39:26,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (2/3) ... [2020-07-18 04:39:26,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff8d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:26, skipping insertion in model container [2020-07-18 04:39:26,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:26" (3/3) ... [2020-07-18 04:39:26,694 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2020-07-18 04:39:26,705 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:39:26,713 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:39:26,725 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:39:26,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:39:26,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:39:26,745 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:39:26,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:39:26,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:39:26,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:39:26,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:39:26,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:39:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-07-18 04:39:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-18 04:39:26,776 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:26,777 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] [2020-07-18 04:39:26,778 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:26,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:26,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1118854884, now seen corresponding path program 1 times [2020-07-18 04:39:26,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:26,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694437288] [2020-07-18 04:39:26,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:27,023 INFO L280 TraceCheckUtils]: 0: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {79#true} is VALID [2020-07-18 04:39:27,024 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} #valid := #valid[0 := 0]; {79#true} is VALID [2020-07-18 04:39:27,025 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} assume 0 < #StackHeapBarrier; {79#true} is VALID [2020-07-18 04:39:27,025 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} ~huge_floor~0 := 1.0E30; {79#true} is VALID [2020-07-18 04:39:27,026 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-18 04:39:27,026 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {79#true} {79#true} #136#return; {79#true} is VALID [2020-07-18 04:39:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:27,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {79#true} is VALID [2020-07-18 04:39:27,065 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} havoc ~i0~0; {79#true} is VALID [2020-07-18 04:39:27,065 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} havoc ~j0~0; {79#true} is VALID [2020-07-18 04:39:27,065 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} havoc ~i~0; {79#true} is VALID [2020-07-18 04:39:27,066 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} havoc ~ix~0; {79#true} is VALID [2020-07-18 04:39:27,067 INFO L280 TraceCheckUtils]: 5: Hoare triple {79#true} assume !true; {80#false} is VALID [2020-07-18 04:39:27,068 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {80#false} is VALID [2020-07-18 04:39:27,068 INFO L280 TraceCheckUtils]: 7: Hoare triple {80#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {80#false} is VALID [2020-07-18 04:39:27,068 INFO L280 TraceCheckUtils]: 8: Hoare triple {80#false} assume !(~j0~0 < 23); {80#false} is VALID [2020-07-18 04:39:27,069 INFO L280 TraceCheckUtils]: 9: Hoare triple {80#false} assume !(~ix~0 % 4294967296 < 2139095040); {80#false} is VALID [2020-07-18 04:39:27,069 INFO L280 TraceCheckUtils]: 10: Hoare triple {80#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {80#false} is VALID [2020-07-18 04:39:27,070 INFO L280 TraceCheckUtils]: 11: Hoare triple {80#false} assume true; {80#false} is VALID [2020-07-18 04:39:27,070 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {80#false} {79#true} #132#return; {80#false} is VALID [2020-07-18 04:39:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:27,080 INFO L280 TraceCheckUtils]: 0: Hoare triple {79#true} ~x := #in~x; {79#true} is VALID [2020-07-18 04:39:27,081 INFO L280 TraceCheckUtils]: 1: Hoare triple {79#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {79#true} is VALID [2020-07-18 04:39:27,081 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-18 04:39:27,082 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {79#true} {80#false} #134#return; {80#false} is VALID [2020-07-18 04:39:27,084 INFO L263 TraceCheckUtils]: 0: Hoare triple {79#true} call ULTIMATE.init(); {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 04:39:27,084 INFO L280 TraceCheckUtils]: 1: Hoare triple {104#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {79#true} is VALID [2020-07-18 04:39:27,084 INFO L280 TraceCheckUtils]: 2: Hoare triple {79#true} #valid := #valid[0 := 0]; {79#true} is VALID [2020-07-18 04:39:27,085 INFO L280 TraceCheckUtils]: 3: Hoare triple {79#true} assume 0 < #StackHeapBarrier; {79#true} is VALID [2020-07-18 04:39:27,085 INFO L280 TraceCheckUtils]: 4: Hoare triple {79#true} ~huge_floor~0 := 1.0E30; {79#true} is VALID [2020-07-18 04:39:27,086 INFO L280 TraceCheckUtils]: 5: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-18 04:39:27,086 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {79#true} {79#true} #136#return; {79#true} is VALID [2020-07-18 04:39:27,086 INFO L263 TraceCheckUtils]: 7: Hoare triple {79#true} call #t~ret6 := main(); {79#true} is VALID [2020-07-18 04:39:27,087 INFO L280 TraceCheckUtils]: 8: Hoare triple {79#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); {79#true} is VALID [2020-07-18 04:39:27,089 INFO L263 TraceCheckUtils]: 9: Hoare triple {79#true} call #t~ret4 := floor_float(~x~0); {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:27,089 INFO L280 TraceCheckUtils]: 10: Hoare triple {105#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {79#true} is VALID [2020-07-18 04:39:27,090 INFO L280 TraceCheckUtils]: 11: Hoare triple {79#true} havoc ~i0~0; {79#true} is VALID [2020-07-18 04:39:27,090 INFO L280 TraceCheckUtils]: 12: Hoare triple {79#true} havoc ~j0~0; {79#true} is VALID [2020-07-18 04:39:27,090 INFO L280 TraceCheckUtils]: 13: Hoare triple {79#true} havoc ~i~0; {79#true} is VALID [2020-07-18 04:39:27,091 INFO L280 TraceCheckUtils]: 14: Hoare triple {79#true} havoc ~ix~0; {79#true} is VALID [2020-07-18 04:39:27,092 INFO L280 TraceCheckUtils]: 15: Hoare triple {79#true} assume !true; {80#false} is VALID [2020-07-18 04:39:27,092 INFO L280 TraceCheckUtils]: 16: Hoare triple {80#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {80#false} is VALID [2020-07-18 04:39:27,092 INFO L280 TraceCheckUtils]: 17: Hoare triple {80#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {80#false} is VALID [2020-07-18 04:39:27,093 INFO L280 TraceCheckUtils]: 18: Hoare triple {80#false} assume !(~j0~0 < 23); {80#false} is VALID [2020-07-18 04:39:27,093 INFO L280 TraceCheckUtils]: 19: Hoare triple {80#false} assume !(~ix~0 % 4294967296 < 2139095040); {80#false} is VALID [2020-07-18 04:39:27,093 INFO L280 TraceCheckUtils]: 20: Hoare triple {80#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {80#false} is VALID [2020-07-18 04:39:27,094 INFO L280 TraceCheckUtils]: 21: Hoare triple {80#false} assume true; {80#false} is VALID [2020-07-18 04:39:27,094 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {80#false} {79#true} #132#return; {80#false} is VALID [2020-07-18 04:39:27,094 INFO L280 TraceCheckUtils]: 23: Hoare triple {80#false} ~res~0 := #t~ret4; {80#false} is VALID [2020-07-18 04:39:27,095 INFO L280 TraceCheckUtils]: 24: Hoare triple {80#false} havoc #t~ret4; {80#false} is VALID [2020-07-18 04:39:27,095 INFO L263 TraceCheckUtils]: 25: Hoare triple {80#false} call #t~ret5 := isnan_float(~res~0); {79#true} is VALID [2020-07-18 04:39:27,095 INFO L280 TraceCheckUtils]: 26: Hoare triple {79#true} ~x := #in~x; {79#true} is VALID [2020-07-18 04:39:27,095 INFO L280 TraceCheckUtils]: 27: Hoare triple {79#true} #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); {79#true} is VALID [2020-07-18 04:39:27,096 INFO L280 TraceCheckUtils]: 28: Hoare triple {79#true} assume true; {79#true} is VALID [2020-07-18 04:39:27,096 INFO L275 TraceCheckUtils]: 29: Hoare quadruple {79#true} {80#false} #134#return; {80#false} is VALID [2020-07-18 04:39:27,096 INFO L280 TraceCheckUtils]: 30: Hoare triple {80#false} assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; {80#false} is VALID [2020-07-18 04:39:27,097 INFO L280 TraceCheckUtils]: 31: Hoare triple {80#false} assume 0 == #t~ret5; {80#false} is VALID [2020-07-18 04:39:27,097 INFO L280 TraceCheckUtils]: 32: Hoare triple {80#false} havoc #t~ret5; {80#false} is VALID [2020-07-18 04:39:27,097 INFO L280 TraceCheckUtils]: 33: Hoare triple {80#false} assume !false; {80#false} is VALID [2020-07-18 04:39:27,102 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 04:39:27,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694437288] [2020-07-18 04:39:27,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:39:27,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:39:27,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148451643] [2020-07-18 04:39:27,113 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-18 04:39:27,116 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:39:27,120 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:39:27,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:27,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:39:27,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:39:27,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:39:27,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:39:27,192 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2020-07-18 04:39:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:27,749 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2020-07-18 04:39:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:39:27,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-07-18 04:39:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:39:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2020-07-18 04:39:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:27,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2020-07-18 04:39:27,776 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 162 transitions. [2020-07-18 04:39:27,975 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:27,993 INFO L225 Difference]: With dead ends: 136 [2020-07-18 04:39:27,993 INFO L226 Difference]: Without dead ends: 69 [2020-07-18 04:39:27,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:39:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-18 04:39:28,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-07-18 04:39:28,101 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:39:28,102 INFO L82 GeneralOperation]: Start isEquivalent. First operand 69 states. Second operand 69 states. [2020-07-18 04:39:28,103 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2020-07-18 04:39:28,103 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2020-07-18 04:39:28,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:28,110 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-18 04:39:28,111 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-18 04:39:28,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:28,112 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:28,113 INFO L74 IsIncluded]: Start isIncluded. First operand 69 states. Second operand 69 states. [2020-07-18 04:39:28,113 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 69 states. [2020-07-18 04:39:28,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:28,120 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2020-07-18 04:39:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-18 04:39:28,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:28,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:28,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:39:28,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:39:28,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-18 04:39:28,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2020-07-18 04:39:28,128 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 34 [2020-07-18 04:39:28,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:39:28,129 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2020-07-18 04:39:28,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:39:28,129 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 69 states and 77 transitions. [2020-07-18 04:39:28,232 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2020-07-18 04:39:28,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-18 04:39:28,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:28,235 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] [2020-07-18 04:39:28,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:39:28,235 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:28,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:28,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1275579326, now seen corresponding path program 1 times [2020-07-18 04:39:28,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:28,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606938091] [2020-07-18 04:39:28,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:28,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:28,444 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1139) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1004) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:407) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:381) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:390) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:349) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.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) [2020-07-18 04:39:28,450 INFO L168 Benchmark]: Toolchain (without parser) took 2773.26 ms. Allocated memory was 137.9 MB in the beginning and 248.5 MB in the end (delta: 110.6 MB). Free memory was 103.0 MB in the beginning and 216.9 MB in the end (delta: -113.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 04:39:28,451 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.96 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 90.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,453 INFO L168 Benchmark]: Boogie Preprocessor took 125.67 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.6 MB in the beginning and 179.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,454 INFO L168 Benchmark]: RCFGBuilder took 590.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 145.4 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,455 INFO L168 Benchmark]: TraceAbstraction took 1760.36 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 145.4 MB in the beginning and 216.9 MB in the end (delta: -71.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 04:39:28,458 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 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.96 ms. Allocated memory is still 137.9 MB. Free memory was 102.6 MB in the beginning and 90.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.67 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.6 MB in the beginning and 179.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 590.26 ms. Allocated memory is still 202.4 MB. Free memory was 179.6 MB in the beginning and 145.4 MB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1760.36 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 145.4 MB in the beginning and 216.9 MB in the end (delta: -71.6 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.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...