java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 13:00:24,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:00:24,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:00:24,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:00:24,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:00:24,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:00:24,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:00:24,612 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:00:24,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:00:24,615 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:00:24,617 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:00:24,617 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:00:24,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:00:24,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:00:24,624 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:00:24,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:00:24,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:00:24,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:00:24,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:00:24,643 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:00:24,648 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:00:24,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:00:24,655 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-23 13:00:24,667 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 13:00:24,686 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:00:24,686 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:00:24,687 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:00:24,688 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:00:24,688 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:00:24,688 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:00:24,689 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:00:24,689 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:00:24,689 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:00:24,689 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:00:24,689 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:00:24,690 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:00:24,690 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:00:24,690 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:00:24,690 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:00:24,690 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:00:24,691 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:00:24,691 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:00:24,691 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:00:24,691 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:00:24,692 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:00:24,692 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:00:24,692 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:00:24,692 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:00:24,692 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:00:24,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:00:24,693 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:00:24,693 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:00:24,693 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:00:24,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:00:24,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:00:24,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:00:24,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:00:24,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:00:24,776 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:00:24,776 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:00:24,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i [2018-11-23 13:00:24,845 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313f1ca1c/90f7ed32a0b34306be3f45245707e7d0/FLAG577834025 [2018-11-23 13:00:25,390 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:00:25,391 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-data/calendar_true-unreach-call.i [2018-11-23 13:00:25,417 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313f1ca1c/90f7ed32a0b34306be3f45245707e7d0/FLAG577834025 [2018-11-23 13:00:25,645 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/313f1ca1c/90f7ed32a0b34306be3f45245707e7d0 [2018-11-23 13:00:25,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:00:25,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:00:25,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:00:25,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:00:25,661 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:00:25,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:00:25" (1/1) ... [2018-11-23 13:00:25,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304497ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:25, skipping insertion in model container [2018-11-23 13:00:25,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:00:25" (1/1) ... [2018-11-23 13:00:25,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:00:25,747 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:00:26,159 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:00:26,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:00:26,235 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:00:26,312 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:00:26,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26 WrapperNode [2018-11-23 13:00:26,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:00:26,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:00:26,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:00:26,314 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:00:26,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:00:26,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:00:26,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:00:26,429 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:00:26,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (1/1) ... [2018-11-23 13:00:26,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:00:26,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:00:26,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:00:26,480 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:00:26,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (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 [2018-11-23 13:00:26,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:00:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:00:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:00:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:00:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:00:26,541 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:00:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:00:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 13:00:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 13:00:26,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:00:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:00:27,266 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:00:27,267 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:00:27,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:00:27 BoogieIcfgContainer [2018-11-23 13:00:27,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:00:27,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:00:27,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:00:27,274 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:00:27,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:00:25" (1/3) ... [2018-11-23 13:00:27,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da400b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:00:27, skipping insertion in model container [2018-11-23 13:00:27,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:00:26" (2/3) ... [2018-11-23 13:00:27,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da400b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:00:27, skipping insertion in model container [2018-11-23 13:00:27,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:00:27" (3/3) ... [2018-11-23 13:00:27,279 INFO L112 eAbstractionObserver]: Analyzing ICFG calendar_true-unreach-call.i [2018-11-23 13:00:27,288 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:00:27,297 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:00:27,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:00:27,348 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:00:27,349 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:00:27,349 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:00:27,350 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:00:27,350 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:00:27,350 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:00:27,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:00:27,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:00:27,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:00:27,369 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-23 13:00:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:00:27,376 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:00:27,377 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:00:27,380 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:00:27,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:00:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash 364456197, now seen corresponding path program 1 times [2018-11-23 13:00:27,387 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:00:27,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:00:27,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:27,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:00:27,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:00:27,570 INFO L256 TraceCheckUtils]: 0: Hoare triple {29#true} call ULTIMATE.init(); {29#true} is VALID [2018-11-23 13:00:27,574 INFO L273 TraceCheckUtils]: 1: Hoare triple {29#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {29#true} is VALID [2018-11-23 13:00:27,574 INFO L273 TraceCheckUtils]: 2: Hoare triple {29#true} assume true; {29#true} is VALID [2018-11-23 13:00:27,574 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {29#true} {29#true} #73#return; {29#true} is VALID [2018-11-23 13:00:27,575 INFO L256 TraceCheckUtils]: 4: Hoare triple {29#true} call #t~ret14 := main(); {29#true} is VALID [2018-11-23 13:00:27,575 INFO L273 TraceCheckUtils]: 5: Hoare triple {29#true} ~l~0.base, ~l~0.offset := 0, 0; {29#true} is VALID [2018-11-23 13:00:27,576 INFO L273 TraceCheckUtils]: 6: Hoare triple {29#true} assume !true; {30#false} is VALID [2018-11-23 13:00:27,576 INFO L273 TraceCheckUtils]: 7: Hoare triple {30#false} ~i~0.base, ~i~0.offset := ~l~0.base, ~l~0.offset; {30#false} is VALID [2018-11-23 13:00:27,576 INFO L273 TraceCheckUtils]: 8: Hoare triple {30#false} assume !!(~i~0.base != 0 || ~i~0.offset != 0);call #t~mem6 := read~int(~i~0.base, 4 + ~i~0.offset, 4);#t~short8 := 1 == #t~mem6; {30#false} is VALID [2018-11-23 13:00:27,577 INFO L273 TraceCheckUtils]: 9: Hoare triple {30#false} assume #t~short8;call #t~mem7 := read~int(~i~0.base, 8 + ~i~0.offset, 4);#t~short8 := 3 == #t~mem7; {30#false} is VALID [2018-11-23 13:00:27,577 INFO L273 TraceCheckUtils]: 10: Hoare triple {30#false} #t~short12 := #t~short8; {30#false} is VALID [2018-11-23 13:00:27,577 INFO L273 TraceCheckUtils]: 11: Hoare triple {30#false} assume #t~short12; {30#false} is VALID [2018-11-23 13:00:27,578 INFO L273 TraceCheckUtils]: 12: Hoare triple {30#false} assume #t~short12;havoc #t~mem6;havoc #t~short11;havoc #t~mem9;havoc #t~mem10;havoc #t~mem7;havoc #t~short8;havoc #t~short12; {30#false} is VALID [2018-11-23 13:00:27,578 INFO L273 TraceCheckUtils]: 13: Hoare triple {30#false} assume !false; {30#false} is VALID [2018-11-23 13:00:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:00:27,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:00:27,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:00:27,590 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 13:00:27,593 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:00:27,597 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-23 13:00:27,710 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:00:27,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:00:27,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:00:27,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:00:27,724 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-11-23 13:00:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:27,912 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2018-11-23 13:00:27,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:00:27,912 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 13:00:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:00:27,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:00:27,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 55 transitions. [2018-11-23 13:00:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:00:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 55 transitions. [2018-11-23 13:00:27,934 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 55 transitions. [2018-11-23 13:00:28,182 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:00:28,194 INFO L225 Difference]: With dead ends: 41 [2018-11-23 13:00:28,195 INFO L226 Difference]: Without dead ends: 22 [2018-11-23 13:00:28,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:00:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-23 13:00:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-23 13:00:28,236 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:00:28,237 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2018-11-23 13:00:28,237 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2018-11-23 13:00:28,237 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2018-11-23 13:00:28,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:28,243 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2018-11-23 13:00:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-11-23 13:00:28,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:00:28,245 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:00:28,245 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2018-11-23 13:00:28,245 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2018-11-23 13:00:28,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:28,249 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2018-11-23 13:00:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-11-23 13:00:28,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:00:28,250 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:00:28,250 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:00:28,250 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:00:28,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 13:00:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2018-11-23 13:00:28,255 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 14 [2018-11-23 13:00:28,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:00:28,255 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-23 13:00:28,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:00:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-11-23 13:00:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 13:00:28,256 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:00:28,256 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:00:28,257 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:00:28,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:00:28,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1313825292, now seen corresponding path program 1 times [2018-11-23 13:00:28,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:00:28,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:00:28,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:28,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:00:28,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:00:28,579 INFO L256 TraceCheckUtils]: 0: Hoare triple {155#true} call ULTIMATE.init(); {155#true} is VALID [2018-11-23 13:00:28,579 INFO L273 TraceCheckUtils]: 1: Hoare triple {155#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; {155#true} is VALID [2018-11-23 13:00:28,580 INFO L273 TraceCheckUtils]: 2: Hoare triple {155#true} assume true; {155#true} is VALID [2018-11-23 13:00:28,580 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {155#true} {155#true} #73#return; {155#true} is VALID [2018-11-23 13:00:28,580 INFO L256 TraceCheckUtils]: 4: Hoare triple {155#true} call #t~ret14 := main(); {155#true} is VALID [2018-11-23 13:00:28,584 INFO L273 TraceCheckUtils]: 5: Hoare triple {155#true} ~l~0.base, ~l~0.offset := 0, 0; {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-23 13:00:28,585 INFO L273 TraceCheckUtils]: 6: Hoare triple {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} goto; {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-23 13:00:28,590 INFO L273 TraceCheckUtils]: 7: Hoare triple {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-23 13:00:28,592 INFO L273 TraceCheckUtils]: 8: Hoare triple {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} assume !(0 != #t~nondet2);havoc #t~nondet2; {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} is VALID [2018-11-23 13:00:28,593 INFO L273 TraceCheckUtils]: 9: Hoare triple {157#(and (= 0 main_~l~0.base) (= 0 main_~l~0.offset))} ~i~0.base, ~i~0.offset := ~l~0.base, ~l~0.offset; {158#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} is VALID [2018-11-23 13:00:28,595 INFO L273 TraceCheckUtils]: 10: Hoare triple {158#(and (= main_~i~0.base 0) (= 0 main_~i~0.offset))} assume !!(~i~0.base != 0 || ~i~0.offset != 0);call #t~mem6 := read~int(~i~0.base, 4 + ~i~0.offset, 4);#t~short8 := 1 == #t~mem6; {156#false} is VALID [2018-11-23 13:00:28,596 INFO L273 TraceCheckUtils]: 11: Hoare triple {156#false} assume #t~short8;call #t~mem7 := read~int(~i~0.base, 8 + ~i~0.offset, 4);#t~short8 := 3 == #t~mem7; {156#false} is VALID [2018-11-23 13:00:28,596 INFO L273 TraceCheckUtils]: 12: Hoare triple {156#false} #t~short12 := #t~short8; {156#false} is VALID [2018-11-23 13:00:28,596 INFO L273 TraceCheckUtils]: 13: Hoare triple {156#false} assume #t~short12; {156#false} is VALID [2018-11-23 13:00:28,597 INFO L273 TraceCheckUtils]: 14: Hoare triple {156#false} assume #t~short12;havoc #t~mem6;havoc #t~short11;havoc #t~mem9;havoc #t~mem10;havoc #t~mem7;havoc #t~short8;havoc #t~short12; {156#false} is VALID [2018-11-23 13:00:28,597 INFO L273 TraceCheckUtils]: 15: Hoare triple {156#false} assume !false; {156#false} is VALID [2018-11-23 13:00:28,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:00:28,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:00:28,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:00:28,602 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-23 13:00:28,602 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:00:28,602 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 13:00:28,681 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:00:28,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:00:28,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:00:28,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:00:28,682 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand 4 states. [2018-11-23 13:00:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:29,400 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2018-11-23 13:00:29,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:00:29,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-23 13:00:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:00:29,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 13:00:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2018-11-23 13:00:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 13:00:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 51 transitions. [2018-11-23 13:00:29,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 51 transitions. [2018-11-23 13:00:29,514 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:00:29,517 INFO L225 Difference]: With dead ends: 39 [2018-11-23 13:00:29,518 INFO L226 Difference]: Without dead ends: 27 [2018-11-23 13:00:29,519 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:00:29,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-23 13:00:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-23 13:00:29,537 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:00:29,537 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand 27 states. [2018-11-23 13:00:29,537 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-23 13:00:29,537 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-23 13:00:29,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:29,540 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2018-11-23 13:00:29,541 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-23 13:00:29,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:00:29,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:00:29,542 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand 27 states. [2018-11-23 13:00:29,542 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 27 states. [2018-11-23 13:00:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:00:29,545 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2018-11-23 13:00:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-23 13:00:29,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:00:29,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:00:29,546 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:00:29,546 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:00:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-23 13:00:29,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-11-23 13:00:29,549 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2018-11-23 13:00:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:00:29,549 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-11-23 13:00:29,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:00:29,549 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2018-11-23 13:00:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 13:00:29,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:00:29,551 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:00:29,551 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:00:29,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:00:29,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1476727537, now seen corresponding path program 1 times [2018-11-23 13:00:29,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:00:29,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:00:29,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:29,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:00:29,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:00:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:00:29,797 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: zero is neutral element of plus operator at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.lambda$0(UltimateNormalFormUtils.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker$MyWalker.walk(SubtermPropertyChecker.java:63) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SubtermPropertyChecker.isPropertySatisfied(SubtermPropertyChecker.java:121) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.respectsUltimateNormalForm(UltimateNormalFormUtils.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:103) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.constructNewPredicate(PredicateUnifier.java:375) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:361) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:316) 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) [2018-11-23 13:00:29,802 INFO L168 Benchmark]: Toolchain (without parser) took 4146.62 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.5 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -627.9 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-23 13:00:29,804 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:00:29,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-11-23 13:00:29,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2018-11-23 13:00:29,806 INFO L168 Benchmark]: Boogie Preprocessor took 47.19 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:00:29,807 INFO L168 Benchmark]: RCFGBuilder took 788.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2018-11-23 13:00:29,808 INFO L168 Benchmark]: TraceAbstraction took 2531.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 7.1 GB. [2018-11-23 13:00:29,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 712.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.19 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 788.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2531.45 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 107.0 MB). Peak memory consumption was 107.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: zero is neutral element of plus operator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: zero is neutral element of plus operator: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UltimateNormalFormUtils.rootRespectsUltimateNormalForm(UltimateNormalFormUtils.java:87) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...