/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/loop-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 12:48:06,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 12:48:06,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 12:48:06,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 12:48:06,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 12:48:06,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 12:48:06,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 12:48:06,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 12:48:06,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 12:48:06,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 12:48:06,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 12:48:06,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 12:48:06,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 12:48:06,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 12:48:06,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 12:48:06,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 12:48:06,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 12:48:06,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 12:48:06,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 12:48:06,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 12:48:06,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 12:48:06,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 12:48:06,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 12:48:06,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 12:48:06,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 12:48:06,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 12:48:06,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 12:48:06,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 12:48:06,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 12:48:06,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 12:48:06,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 12:48:06,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 12:48:06,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 12:48:06,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 12:48:06,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 12:48:06,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 12:48:06,935 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 [2020-07-08 12:48:06,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 12:48:06,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 12:48:06,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-08 12:48:06,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-08 12:48:06,977 INFO L138 SettingsManager]: * Use SBE=true [2020-07-08 12:48:06,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 12:48:06,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 12:48:06,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 12:48:06,979 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 12:48:06,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 12:48:06,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 12:48:06,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 12:48:06,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 12:48:06,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-08 12:48:06,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 12:48:06,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 12:48:06,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 12:48:06,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 12:48:06,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-08 12:48:06,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-08 12:48:06,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-08 12:48:06,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-08 12:48:06,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 12:48:06,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-08 12:48:06,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-08 12:48:07,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 12:48:07,336 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 12:48:07,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 12:48:07,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 12:48:07,341 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 12:48:07,341 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2020-07-08 12:48:07,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcdb2082/45cb1892f84e439ebf3ce521d6e2b978/FLAG1595da181 [2020-07-08 12:48:07,899 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 12:48:07,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2020-07-08 12:48:07,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcdb2082/45cb1892f84e439ebf3ce521d6e2b978/FLAG1595da181 [2020-07-08 12:48:08,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebcdb2082/45cb1892f84e439ebf3ce521d6e2b978 [2020-07-08 12:48:08,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 12:48:08,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 12:48:08,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 12:48:08,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 12:48:08,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 12:48:08,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1d4a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08, skipping insertion in model container [2020-07-08 12:48:08,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 12:48:08,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 12:48:08,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:48:08,553 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 12:48:08,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 12:48:08,593 INFO L208 MainTranslator]: Completed translation [2020-07-08 12:48:08,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08 WrapperNode [2020-07-08 12:48:08,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 12:48:08,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 12:48:08,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 12:48:08,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 12:48:08,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (1/1) ... [2020-07-08 12:48:08,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 12:48:08,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 12:48:08,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 12:48:08,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 12:48:08,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (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 [2020-07-08 12:48:08,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 12:48:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 12:48:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 12:48:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 12:48:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 12:48:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-08 12:48:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 12:48:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 12:48:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 12:48:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 12:48:09,091 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 12:48:09,091 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 12:48:09,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:48:09 BoogieIcfgContainer [2020-07-08 12:48:09,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 12:48:09,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 12:48:09,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 12:48:09,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 12:48:09,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 12:48:08" (1/3) ... [2020-07-08 12:48:09,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e5ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:48:09, skipping insertion in model container [2020-07-08 12:48:09,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 12:48:08" (2/3) ... [2020-07-08 12:48:09,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e5ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 12:48:09, skipping insertion in model container [2020-07-08 12:48:09,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 12:48:09" (3/3) ... [2020-07-08 12:48:09,105 INFO L109 eAbstractionObserver]: Analyzing ICFG const.c [2020-07-08 12:48:09,116 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-08 12:48:09,130 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 12:48:09,159 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 12:48:09,191 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 12:48:09,191 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 12:48:09,191 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-08 12:48:09,191 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 12:48:09,191 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 12:48:09,191 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 12:48:09,191 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 12:48:09,192 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 12:48:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-08 12:48:09,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-08 12:48:09,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 12:48:09,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 12:48:09,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 12:48:09,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 12:48:09,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1311776583, now seen corresponding path program 1 times [2020-07-08 12:48:09,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-08 12:48:09,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169981792] [2020-07-08 12:48:09,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 12:48:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 12:48:09,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 12:48:09,381 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.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:799) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:883) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:108) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 12:48:09,388 INFO L168 Benchmark]: Toolchain (without parser) took 1068.13 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 105.0 MB in the beginning and 157.1 MB in the end (delta: -52.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,389 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.23 ms. Allocated memory is still 143.1 MB. Free memory was 104.8 MB in the beginning and 95.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,391 INFO L168 Benchmark]: Boogie Preprocessor took 143.78 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 95.2 MB in the beginning and 184.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,392 INFO L168 Benchmark]: RCFGBuilder took 354.62 ms. Allocated memory is still 203.9 MB. Free memory was 183.2 MB in the beginning and 169.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,393 INFO L168 Benchmark]: TraceAbstraction took 286.88 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 157.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-07-08 12:48:09,397 INFO L336 ainManager$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 0.22 ms. Allocated memory is still 143.1 MB. Free memory was 123.9 MB in the beginning and 123.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 275.23 ms. Allocated memory is still 143.1 MB. Free memory was 104.8 MB in the beginning and 95.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.78 ms. Allocated memory was 143.1 MB in the beginning and 203.9 MB in the end (delta: 60.8 MB). Free memory was 95.2 MB in the beginning and 184.1 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.62 ms. Allocated memory is still 203.9 MB. Free memory was 183.2 MB in the beginning and 169.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 286.88 ms. Allocated memory is still 203.9 MB. Free memory was 169.0 MB in the beginning and 157.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 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.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...