/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 14:42:55,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 14:42:55,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 14:42:55,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 14:42:55,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 14:42:55,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 14:42:55,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 14:42:55,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 14:42:55,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 14:42:55,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 14:42:55,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 14:42:55,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 14:42:55,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 14:42:55,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 14:42:55,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 14:42:55,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 14:42:55,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 14:42:55,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 14:42:55,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 14:42:55,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 14:42:55,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 14:42:55,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 14:42:55,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 14:42:55,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 14:42:55,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 14:42:55,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 14:42:55,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 14:42:55,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 14:42:55,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 14:42:55,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 14:42:55,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 14:42:55,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 14:42:55,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 14:42:55,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 14:42:55,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 14:42:55,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 14:42:55,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 14:42:55,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 14:42:55,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 14:42:55,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 14:42:55,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 14:42:55,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 14:42:55,158 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 14:42:55,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 14:42:55,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 14:42:55,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 14:42:55,164 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 14:42:55,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 14:42:55,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 14:42:55,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 14:42:55,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 14:42:55,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 14:42:55,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 14:42:55,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 14:42:55,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 14:42:55,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 14:42:55,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 14:42:55,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 14:42:55,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 14:42:55,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 14:42:55,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 14:42:55,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 14:42:55,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 14:42:55,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 14:42:55,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 14:42:55,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 14:42:55,176 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 14:42:55,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 14:42:55,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 14:42:55,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 14:42:55,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 14:42:55,520 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 14:42:55,521 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension2-2.c [2020-07-10 14:42:55,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea541bee7/f0df8c6a143a43eea9a25fb465b44c41/FLAG07cfd90b6 [2020-07-10 14:42:56,050 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 14:42:56,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension2-2.c [2020-07-10 14:42:56,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea541bee7/f0df8c6a143a43eea9a25fb465b44c41/FLAG07cfd90b6 [2020-07-10 14:42:56,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea541bee7/f0df8c6a143a43eea9a25fb465b44c41 [2020-07-10 14:42:56,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 14:42:56,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 14:42:56,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:56,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 14:42:56,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 14:42:56,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73021cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56, skipping insertion in model container [2020-07-10 14:42:56,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 14:42:56,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 14:42:56,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:56,687 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 14:42:56,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 14:42:56,718 INFO L208 MainTranslator]: Completed translation [2020-07-10 14:42:56,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56 WrapperNode [2020-07-10 14:42:56,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 14:42:56,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 14:42:56,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 14:42:56,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 14:42:56,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (1/1) ... [2020-07-10 14:42:56,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 14:42:56,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 14:42:56,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 14:42:56,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 14:42:56,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (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 [2020-07-10 14:42:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 14:42:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 14:42:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 14:42:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 14:42:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 14:42:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 14:42:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 14:42:57,095 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 14:42:57,096 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-10 14:42:57,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:57 BoogieIcfgContainer [2020-07-10 14:42:57,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 14:42:57,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 14:42:57,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 14:42:57,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 14:42:57,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 02:42:56" (1/3) ... [2020-07-10 14:42:57,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b76580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:57, skipping insertion in model container [2020-07-10 14:42:57,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 02:42:56" (2/3) ... [2020-07-10 14:42:57,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b76580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 02:42:57, skipping insertion in model container [2020-07-10 14:42:57,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 02:42:57" (3/3) ... [2020-07-10 14:42:57,109 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2020-07-10 14:42:57,121 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 14:42:57,129 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 14:42:57,150 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 14:42:57,221 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 14:42:57,221 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 14:42:57,221 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 14:42:57,222 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 14:42:57,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 14:42:57,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 14:42:57,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 14:42:57,222 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 14:42:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-07-10 14:42:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-10 14:42:57,270 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 14:42:57,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-10 14:42:57,271 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 14:42:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 14:42:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash 408836530, now seen corresponding path program 1 times [2020-07-10 14:42:57,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 14:42:57,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154424468] [2020-07-10 14:42:57,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 14:42:57,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 14:42:57,433 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.cclosure.CClosure.createEquality(CClosure.java:1015) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.mergeInternal(CCTerm.java:405) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CCTerm.merge(CCTerm.java:377) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.setLiteral(CClosure.java:855) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.setLiteral(DPLLEngine.java:460) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1193) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) 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) [2020-07-10 14:42:57,441 INFO L168 Benchmark]: Toolchain (without parser) took 984.15 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 106.1 MB in the beginning and 160.7 MB in the end (delta: -54.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,442 INFO L168 Benchmark]: CDTParser took 1.33 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.50 ms. Allocated memory is still 147.8 MB. Free memory was 105.9 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,445 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 ms. Allocated memory is still 147.8 MB. Free memory was 96.3 MB in the beginning and 95.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,447 INFO L168 Benchmark]: RCFGBuilder took 353.24 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 95.0 MB in the beginning and 171.7 MB in the end (delta: -76.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,448 INFO L168 Benchmark]: TraceAbstraction took 335.93 ms. Allocated memory is still 204.5 MB. Free memory was 171.7 MB in the beginning and 160.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-10 14:42:57,453 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 1.33 ms. Allocated memory is still 147.8 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.50 ms. Allocated memory is still 147.8 MB. Free memory was 105.9 MB in the beginning and 96.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.32 ms. Allocated memory is still 147.8 MB. Free memory was 96.3 MB in the beginning and 95.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 353.24 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 95.0 MB in the beginning and 171.7 MB in the end (delta: -76.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 335.93 ms. Allocated memory is still 204.5 MB. Free memory was 171.7 MB in the beginning and 160.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 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...