/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/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:38:53,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:38:53,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:38:53,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:38:53,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:38:53,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:38:53,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:38:53,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:38:53,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:38:53,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:38:53,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:38:53,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:38:53,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:38:53,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:38:53,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:38:53,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:38:53,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:38:53,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:38:53,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:38:53,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:38:53,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:38:53,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:38:53,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:38:53,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:38:53,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:38:53,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:38:53,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:38:53,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:38:53,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:38:53,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 04:38:53,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 04:38:53,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 04:38:53,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 04:38:53,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 04:38:53,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 04:38:53,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 04:38:53,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 04:38:53,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 04:38:53,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:38:53,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:38:53,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:38:53,647 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 04:38:53,656 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:38:53,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:38:53,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:38:53,658 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:38:53,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:38:53,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:38:53,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:38:53,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:38:53,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:38:53,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:38:53,660 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:38:53,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:38:53,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:38:53,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:38:53,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:38:53,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:38:53,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:38:53,661 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 04:38:53,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:38:53,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:38:53,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:38:53,977 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:38:53,977 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:38:53,978 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-18 04:38:54,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e20afeb7/67fe90fd867c41f29f083ccf573c6728/FLAGacfa5ccf1 [2020-07-18 04:38:54,492 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:38:54,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-07-18 04:38:54,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e20afeb7/67fe90fd867c41f29f083ccf573c6728/FLAGacfa5ccf1 [2020-07-18 04:38:54,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e20afeb7/67fe90fd867c41f29f083ccf573c6728 [2020-07-18 04:38:54,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:38:54,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:38:54,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:38:54,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:38:54,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:38:54,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:38:54" (1/1) ... [2020-07-18 04:38:54,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7639c3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:54, skipping insertion in model container [2020-07-18 04:38:54,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:38:54" (1/1) ... [2020-07-18 04:38:54,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:38:54,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:38:55,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:38:55,376 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:38:55,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:38:55,487 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:38:55,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55 WrapperNode [2020-07-18 04:38:55,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:38:55,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:38:55,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:38:55,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:38:55,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (1/1) ... [2020-07-18 04:38:55,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:38:55,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:38:55,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:38:55,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:38:55,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (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 04:38:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:38:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:38:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-18 04:38:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-18 04:38:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-07-18 04:38:55,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:38:55,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:38:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:38:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:38:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:38:55,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:38:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-07-18 04:38:55,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:38:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:38:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-18 04:38:55,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:38:56,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:38:56,565 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-18 04:38:56,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:38:56 BoogieIcfgContainer [2020-07-18 04:38:56,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:38:56,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:38:56,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:38:56,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:38:56,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:38:54" (1/3) ... [2020-07-18 04:38:56,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338a4ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:38:56, skipping insertion in model container [2020-07-18 04:38:56,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:38:55" (2/3) ... [2020-07-18 04:38:56,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338a4ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:38:56, skipping insertion in model container [2020-07-18 04:38:56,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:38:56" (3/3) ... [2020-07-18 04:38:56,592 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-07-18 04:38:56,602 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:38:56,610 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:38:56,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:38:56,646 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:38:56,646 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:38:56,646 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:38:56,646 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:38:56,647 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:38:56,647 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:38:56,647 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:38:56,647 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:38:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states. [2020-07-18 04:38:56,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-18 04:38:56,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:38:56,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 04:38:56,683 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:38:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:38:56,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1608489446, now seen corresponding path program 1 times [2020-07-18 04:38:56,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:38:56,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047515332] [2020-07-18 04:38:56,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:38:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:38:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:38:56,913 INFO L280 TraceCheckUtils]: 0: Hoare triple {257#(and (= ~one_fmod~0 |old(~one_fmod~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#Zero_fmod~0.base| |old(~#Zero_fmod~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|) (= |~#Zero_fmod~0.offset| |old(~#Zero_fmod~0.offset)|))} #NULL.base, #NULL.offset := 0, 0; {224#true} is VALID [2020-07-18 04:38:56,914 INFO L280 TraceCheckUtils]: 1: Hoare triple {224#true} #valid := #valid[0 := 0]; {224#true} is VALID [2020-07-18 04:38:56,914 INFO L280 TraceCheckUtils]: 2: Hoare triple {224#true} assume 0 < #StackHeapBarrier; {224#true} is VALID [2020-07-18 04:38:56,915 INFO L280 TraceCheckUtils]: 3: Hoare triple {224#true} ~one_fmod~0 := 1.0; {224#true} is VALID [2020-07-18 04:38:56,915 INFO L280 TraceCheckUtils]: 4: Hoare triple {224#true} SUMMARY for call ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset := #Ultimate.allocOnStack(16); srcloc: L18-1 {224#true} is VALID [2020-07-18 04:38:56,916 INFO L280 TraceCheckUtils]: 5: Hoare triple {224#true} SUMMARY for call write~init~real(0.0, ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset, 8); srcloc: L18-2 {224#true} is VALID [2020-07-18 04:38:56,916 INFO L280 TraceCheckUtils]: 6: Hoare triple {224#true} SUMMARY for call write~init~real(~someUnaryDOUBLEoperation(0.0), ~#Zero_fmod~0.base, 8 + ~#Zero_fmod~0.offset, 8); srcloc: L18-3 {224#true} is VALID [2020-07-18 04:38:56,916 INFO L280 TraceCheckUtils]: 7: Hoare triple {224#true} assume true; {224#true} is VALID [2020-07-18 04:38:56,917 INFO L275 TraceCheckUtils]: 8: Hoare quadruple {224#true} {224#true} #441#return; {224#true} is VALID [2020-07-18 04:38:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:38:56,959 INFO L280 TraceCheckUtils]: 0: Hoare triple {258#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {224#true} is VALID [2020-07-18 04:38:56,959 INFO L280 TraceCheckUtils]: 1: Hoare triple {224#true} ~y := #in~y; {224#true} is VALID [2020-07-18 04:38:56,960 INFO L280 TraceCheckUtils]: 2: Hoare triple {224#true} havoc ~n~0; {224#true} is VALID [2020-07-18 04:38:56,960 INFO L280 TraceCheckUtils]: 3: Hoare triple {224#true} havoc ~hx~0; {224#true} is VALID [2020-07-18 04:38:56,960 INFO L280 TraceCheckUtils]: 4: Hoare triple {224#true} havoc ~hy~0; {224#true} is VALID [2020-07-18 04:38:56,961 INFO L280 TraceCheckUtils]: 5: Hoare triple {224#true} havoc ~hz~0; {224#true} is VALID [2020-07-18 04:38:56,961 INFO L280 TraceCheckUtils]: 6: Hoare triple {224#true} havoc ~ix~0; {224#true} is VALID [2020-07-18 04:38:56,961 INFO L280 TraceCheckUtils]: 7: Hoare triple {224#true} havoc ~iy~0; {224#true} is VALID [2020-07-18 04:38:56,962 INFO L280 TraceCheckUtils]: 8: Hoare triple {224#true} havoc ~sx~0; {224#true} is VALID [2020-07-18 04:38:56,962 INFO L280 TraceCheckUtils]: 9: Hoare triple {224#true} havoc ~i~0; {224#true} is VALID [2020-07-18 04:38:56,962 INFO L280 TraceCheckUtils]: 10: Hoare triple {224#true} havoc ~lx~0; {224#true} is VALID [2020-07-18 04:38:56,963 INFO L280 TraceCheckUtils]: 11: Hoare triple {224#true} havoc ~ly~0; {224#true} is VALID [2020-07-18 04:38:56,963 INFO L280 TraceCheckUtils]: 12: Hoare triple {224#true} havoc ~lz~0; {224#true} is VALID [2020-07-18 04:38:56,964 INFO L280 TraceCheckUtils]: 13: Hoare triple {224#true} assume !true; {225#false} is VALID [2020-07-18 04:38:56,965 INFO L280 TraceCheckUtils]: 14: Hoare triple {225#false} assume !true; {225#false} is VALID [2020-07-18 04:38:56,965 INFO L280 TraceCheckUtils]: 15: Hoare triple {225#false} ~sx~0 := (if ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {225#false} is VALID [2020-07-18 04:38:56,965 INFO L280 TraceCheckUtils]: 16: Hoare triple {225#false} ~hx~0 := ~bitwiseXor(~hx~0, ~sx~0); {225#false} is VALID [2020-07-18 04:38:56,966 INFO L280 TraceCheckUtils]: 17: Hoare triple {225#false} ~hy~0 := ~bitwiseAnd(~hy~0, 2147483647); {225#false} is VALID [2020-07-18 04:38:56,966 INFO L280 TraceCheckUtils]: 18: Hoare triple {225#false} assume (0 == ~bitwiseOr(~hy~0, ~ly~0) % 4294967296 || ~hx~0 >= 2146435072) || ~bitwiseOr(~hy~0, ~bitwiseOr(~ly~0, -~ly~0) / 2147483648) % 4294967296 > 2146435072; {225#false} is VALID [2020-07-18 04:38:56,966 INFO L280 TraceCheckUtils]: 19: Hoare triple {225#false} #res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x, ~y), ~someBinaryArithmeticDOUBLEoperation(~x, ~y)); {225#false} is VALID [2020-07-18 04:38:56,967 INFO L280 TraceCheckUtils]: 20: Hoare triple {225#false} assume true; {225#false} is VALID [2020-07-18 04:38:56,967 INFO L275 TraceCheckUtils]: 21: Hoare quadruple {225#false} {224#true} #437#return; {225#false} is VALID [2020-07-18 04:38:56,972 INFO L263 TraceCheckUtils]: 0: Hoare triple {224#true} call ULTIMATE.init(); {257#(and (= ~one_fmod~0 |old(~one_fmod~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#Zero_fmod~0.base| |old(~#Zero_fmod~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|) (= |~#Zero_fmod~0.offset| |old(~#Zero_fmod~0.offset)|))} is VALID [2020-07-18 04:38:56,972 INFO L280 TraceCheckUtils]: 1: Hoare triple {257#(and (= ~one_fmod~0 |old(~one_fmod~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#Zero_fmod~0.base| |old(~#Zero_fmod~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|) (= |~#Zero_fmod~0.offset| |old(~#Zero_fmod~0.offset)|))} #NULL.base, #NULL.offset := 0, 0; {224#true} is VALID [2020-07-18 04:38:56,972 INFO L280 TraceCheckUtils]: 2: Hoare triple {224#true} #valid := #valid[0 := 0]; {224#true} is VALID [2020-07-18 04:38:56,973 INFO L280 TraceCheckUtils]: 3: Hoare triple {224#true} assume 0 < #StackHeapBarrier; {224#true} is VALID [2020-07-18 04:38:56,973 INFO L280 TraceCheckUtils]: 4: Hoare triple {224#true} ~one_fmod~0 := 1.0; {224#true} is VALID [2020-07-18 04:38:56,973 INFO L280 TraceCheckUtils]: 5: Hoare triple {224#true} SUMMARY for call ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset := #Ultimate.allocOnStack(16); srcloc: L18-1 {224#true} is VALID [2020-07-18 04:38:56,974 INFO L280 TraceCheckUtils]: 6: Hoare triple {224#true} SUMMARY for call write~init~real(0.0, ~#Zero_fmod~0.base, ~#Zero_fmod~0.offset, 8); srcloc: L18-2 {224#true} is VALID [2020-07-18 04:38:56,974 INFO L280 TraceCheckUtils]: 7: Hoare triple {224#true} SUMMARY for call write~init~real(~someUnaryDOUBLEoperation(0.0), ~#Zero_fmod~0.base, 8 + ~#Zero_fmod~0.offset, 8); srcloc: L18-3 {224#true} is VALID [2020-07-18 04:38:56,974 INFO L280 TraceCheckUtils]: 8: Hoare triple {224#true} assume true; {224#true} is VALID [2020-07-18 04:38:56,975 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {224#true} {224#true} #441#return; {224#true} is VALID [2020-07-18 04:38:56,975 INFO L263 TraceCheckUtils]: 10: Hoare triple {224#true} call #t~ret22 := main(); {224#true} is VALID [2020-07-18 04:38:56,975 INFO L280 TraceCheckUtils]: 11: Hoare triple {224#true} ~x~0 := 0.0; {224#true} is VALID [2020-07-18 04:38:56,976 INFO L280 TraceCheckUtils]: 12: Hoare triple {224#true} ~y~0 := #t~nondet18; {224#true} is VALID [2020-07-18 04:38:56,976 INFO L280 TraceCheckUtils]: 13: Hoare triple {224#true} havoc #t~nondet18; {224#true} is VALID [2020-07-18 04:38:56,976 INFO L280 TraceCheckUtils]: 14: Hoare triple {224#true} assume ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0) || ~someBinaryDOUBLEComparisonOperation(~y~0, 0.0); {224#true} is VALID [2020-07-18 04:38:56,978 INFO L263 TraceCheckUtils]: 15: Hoare triple {224#true} call #t~ret19 := fmod_double(~x~0, ~y~0); {258#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:38:56,979 INFO L280 TraceCheckUtils]: 16: Hoare triple {258#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {224#true} is VALID [2020-07-18 04:38:56,979 INFO L280 TraceCheckUtils]: 17: Hoare triple {224#true} ~y := #in~y; {224#true} is VALID [2020-07-18 04:38:56,979 INFO L280 TraceCheckUtils]: 18: Hoare triple {224#true} havoc ~n~0; {224#true} is VALID [2020-07-18 04:38:56,980 INFO L280 TraceCheckUtils]: 19: Hoare triple {224#true} havoc ~hx~0; {224#true} is VALID [2020-07-18 04:38:56,980 INFO L280 TraceCheckUtils]: 20: Hoare triple {224#true} havoc ~hy~0; {224#true} is VALID [2020-07-18 04:38:56,980 INFO L280 TraceCheckUtils]: 21: Hoare triple {224#true} havoc ~hz~0; {224#true} is VALID [2020-07-18 04:38:56,981 INFO L280 TraceCheckUtils]: 22: Hoare triple {224#true} havoc ~ix~0; {224#true} is VALID [2020-07-18 04:38:56,981 INFO L280 TraceCheckUtils]: 23: Hoare triple {224#true} havoc ~iy~0; {224#true} is VALID [2020-07-18 04:38:56,981 INFO L280 TraceCheckUtils]: 24: Hoare triple {224#true} havoc ~sx~0; {224#true} is VALID [2020-07-18 04:38:56,982 INFO L280 TraceCheckUtils]: 25: Hoare triple {224#true} havoc ~i~0; {224#true} is VALID [2020-07-18 04:38:56,982 INFO L280 TraceCheckUtils]: 26: Hoare triple {224#true} havoc ~lx~0; {224#true} is VALID [2020-07-18 04:38:56,982 INFO L280 TraceCheckUtils]: 27: Hoare triple {224#true} havoc ~ly~0; {224#true} is VALID [2020-07-18 04:38:56,983 INFO L280 TraceCheckUtils]: 28: Hoare triple {224#true} havoc ~lz~0; {224#true} is VALID [2020-07-18 04:38:56,983 INFO L280 TraceCheckUtils]: 29: Hoare triple {224#true} assume !true; {225#false} is VALID [2020-07-18 04:38:56,984 INFO L280 TraceCheckUtils]: 30: Hoare triple {225#false} assume !true; {225#false} is VALID [2020-07-18 04:38:56,984 INFO L280 TraceCheckUtils]: 31: Hoare triple {225#false} ~sx~0 := (if ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~hx~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {225#false} is VALID [2020-07-18 04:38:56,984 INFO L280 TraceCheckUtils]: 32: Hoare triple {225#false} ~hx~0 := ~bitwiseXor(~hx~0, ~sx~0); {225#false} is VALID [2020-07-18 04:38:56,985 INFO L280 TraceCheckUtils]: 33: Hoare triple {225#false} ~hy~0 := ~bitwiseAnd(~hy~0, 2147483647); {225#false} is VALID [2020-07-18 04:38:56,985 INFO L280 TraceCheckUtils]: 34: Hoare triple {225#false} assume (0 == ~bitwiseOr(~hy~0, ~ly~0) % 4294967296 || ~hx~0 >= 2146435072) || ~bitwiseOr(~hy~0, ~bitwiseOr(~ly~0, -~ly~0) / 2147483648) % 4294967296 > 2146435072; {225#false} is VALID [2020-07-18 04:38:56,985 INFO L280 TraceCheckUtils]: 35: Hoare triple {225#false} #res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(~x, ~y), ~someBinaryArithmeticDOUBLEoperation(~x, ~y)); {225#false} is VALID [2020-07-18 04:38:56,986 INFO L280 TraceCheckUtils]: 36: Hoare triple {225#false} assume true; {225#false} is VALID [2020-07-18 04:38:56,986 INFO L275 TraceCheckUtils]: 37: Hoare quadruple {225#false} {224#true} #437#return; {225#false} is VALID [2020-07-18 04:38:56,986 INFO L280 TraceCheckUtils]: 38: Hoare triple {225#false} ~res~0 := #t~ret19; {225#false} is VALID [2020-07-18 04:38:56,987 INFO L280 TraceCheckUtils]: 39: Hoare triple {225#false} havoc #t~ret19; {225#false} is VALID [2020-07-18 04:38:56,987 INFO L280 TraceCheckUtils]: 40: Hoare triple {225#false} #t~short21 := ~someBinaryDOUBLEComparisonOperation(~res~0, 0.0); {225#false} is VALID [2020-07-18 04:38:56,987 INFO L280 TraceCheckUtils]: 41: Hoare triple {225#false} assume !#t~short21; {225#false} is VALID [2020-07-18 04:38:56,988 INFO L280 TraceCheckUtils]: 42: Hoare triple {225#false} assume !#t~short21; {225#false} is VALID [2020-07-18 04:38:56,988 INFO L280 TraceCheckUtils]: 43: Hoare triple {225#false} havoc #t~ret20; {225#false} is VALID [2020-07-18 04:38:56,988 INFO L280 TraceCheckUtils]: 44: Hoare triple {225#false} havoc #t~short21; {225#false} is VALID [2020-07-18 04:38:56,989 INFO L280 TraceCheckUtils]: 45: Hoare triple {225#false} assume !false; {225#false} is VALID [2020-07-18 04:38:56,993 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 04:38:56,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047515332] [2020-07-18 04:38:56,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:38:56,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:38:56,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121009827] [2020-07-18 04:38:57,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-07-18 04:38:57,007 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:38:57,011 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:38:57,083 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:38:57,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:38:57,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:38:57,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:38:57,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:38:57,097 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 4 states. [2020-07-18 04:38:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:38:58,612 INFO L93 Difference]: Finished difference Result 415 states and 505 transitions. [2020-07-18 04:38:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:38:58,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-07-18 04:38:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:38:58,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:38:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2020-07-18 04:38:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:38:58,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 505 transitions. [2020-07-18 04:38:58,660 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 505 transitions. [2020-07-18 04:38:59,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 505 edges. 505 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:38:59,264 INFO L225 Difference]: With dead ends: 415 [2020-07-18 04:38:59,264 INFO L226 Difference]: Without dead ends: 213 [2020-07-18 04:38:59,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:38:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-07-18 04:38:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2020-07-18 04:38:59,461 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:38:59,462 INFO L82 GeneralOperation]: Start isEquivalent. First operand 213 states. Second operand 213 states. [2020-07-18 04:38:59,463 INFO L74 IsIncluded]: Start isIncluded. First operand 213 states. Second operand 213 states. [2020-07-18 04:38:59,463 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 213 states. [2020-07-18 04:38:59,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:38:59,483 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-07-18 04:38:59,484 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-07-18 04:38:59,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:38:59,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:38:59,486 INFO L74 IsIncluded]: Start isIncluded. First operand 213 states. Second operand 213 states. [2020-07-18 04:38:59,487 INFO L87 Difference]: Start difference. First operand 213 states. Second operand 213 states. [2020-07-18 04:38:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:38:59,505 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-07-18 04:38:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-07-18 04:38:59,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:38:59,507 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:38:59,508 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:38:59,508 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:38:59,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-18 04:38:59,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2020-07-18 04:38:59,526 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 46 [2020-07-18 04:38:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:38:59,527 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2020-07-18 04:38:59,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:38:59,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 213 states and 240 transitions. [2020-07-18 04:38:59,812 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 240 edges. 240 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:38:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2020-07-18 04:38:59,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-18 04:38:59,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:38:59,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:38:59,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:38:59,816 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:38:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:38:59,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1262573606, now seen corresponding path program 1 times [2020-07-18 04:38:59,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:38:59,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152255502] [2020-07-18 04:38:59,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:38:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:00,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:00,111 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.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 04:39:00,120 INFO L168 Benchmark]: Toolchain (without parser) took 5239.77 ms. Allocated memory was 136.8 MB in the beginning and 300.4 MB in the end (delta: 163.6 MB). Free memory was 101.2 MB in the beginning and 219.9 MB in the end (delta: -118.6 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,121 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.62 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 174.1 MB in the end (delta: -73.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,123 INFO L168 Benchmark]: Boogie Preprocessor took 80.87 ms. Allocated memory is still 200.3 MB. Free memory was 174.1 MB in the beginning and 170.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,126 INFO L168 Benchmark]: RCFGBuilder took 1014.93 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 170.2 MB in the beginning and 203.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,127 INFO L168 Benchmark]: TraceAbstraction took 3531.72 ms. Allocated memory was 230.2 MB in the beginning and 300.4 MB in the end (delta: 70.3 MB). Free memory was 203.9 MB in the beginning and 219.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:00,138 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 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 605.62 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 174.1 MB in the end (delta: -73.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.87 ms. Allocated memory is still 200.3 MB. Free memory was 174.1 MB in the beginning and 170.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1014.93 ms. Allocated memory was 200.3 MB in the beginning and 230.2 MB in the end (delta: 29.9 MB). Free memory was 170.2 MB in the beginning and 203.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 90.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3531.72 ms. Allocated memory was 230.2 MB in the beginning and 300.4 MB in the end (delta: 70.3 MB). Free memory was 203.9 MB in the beginning and 219.9 MB in the end (delta: -16.0 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...