/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/const.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 06:39:58,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 06:39:58,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 06:39:58,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 06:39:58,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 06:39:58,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 06:39:58,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 06:39:58,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 06:39:58,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 06:39:58,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 06:39:58,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 06:39:58,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 06:39:58,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 06:39:58,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 06:39:58,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 06:39:58,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 06:39:58,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 06:39:58,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 06:39:58,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 06:39:58,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 06:39:58,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 06:39:58,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 06:39:58,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 06:39:58,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 06:39:58,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 06:39:58,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 06:39:58,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 06:39:58,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 06:39:58,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 06:39:58,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 06:39:58,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 06:39:58,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 06:39:58,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 06:39:58,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 06:39:58,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 06:39:58,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 06:39:58,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 06:39:58,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 06:39:58,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 06:39:58,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 06:39:58,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 06:39:58,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 06:39:58,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 06:39:58,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 06:39:58,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 06:39:58,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 06:39:58,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 06:39:58,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 06:39:58,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 06:39:58,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 06:39:58,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 06:39:58,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 06:39:58,871 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 06:39:58,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 06:39:58,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 06:39:58,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 06:39:58,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 06:39:58,872 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 06:39:58,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 06:39:58,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 06:39:58,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:39:58,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 06:39:58,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 06:39:58,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 06:39:58,873 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 06:39:59,147 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 06:39:59,159 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 06:39:59,162 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 06:39:59,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 06:39:59,164 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 06:39:59,165 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/const.c [2020-07-18 06:39:59,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e504668f5/33be9b0d228447bdb0f722f6284c9822/FLAG8a14439ac [2020-07-18 06:39:59,654 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 06:39:59,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/const.c [2020-07-18 06:39:59,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e504668f5/33be9b0d228447bdb0f722f6284c9822/FLAG8a14439ac [2020-07-18 06:40:00,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e504668f5/33be9b0d228447bdb0f722f6284c9822 [2020-07-18 06:40:00,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 06:40:00,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 06:40:00,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 06:40:00,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 06:40:00,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 06:40:00,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577a1ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00, skipping insertion in model container [2020-07-18 06:40:00,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 06:40:00,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 06:40:00,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:40:00,312 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 06:40:00,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 06:40:00,342 INFO L208 MainTranslator]: Completed translation [2020-07-18 06:40:00,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00 WrapperNode [2020-07-18 06:40:00,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 06:40:00,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 06:40:00,344 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 06:40:00,344 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 06:40:00,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... [2020-07-18 06:40:00,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 06:40:00,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 06:40:00,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 06:40:00,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 06:40:00,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 06:40:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 06:40:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 06:40:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 06:40:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 06:40:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 06:40:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-07-18 06:40:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 06:40:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 06:40:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 06:40:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 06:40:00,741 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 06:40:00,742 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 06:40:00,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:40:00 BoogieIcfgContainer [2020-07-18 06:40:00,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 06:40:00,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 06:40:00,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 06:40:00,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 06:40:00,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 06:40:00" (1/3) ... [2020-07-18 06:40:00,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eb7f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:40:00, skipping insertion in model container [2020-07-18 06:40:00,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 06:40:00" (2/3) ... [2020-07-18 06:40:00,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eb7f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 06:40:00, skipping insertion in model container [2020-07-18 06:40:00,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 06:40:00" (3/3) ... [2020-07-18 06:40:00,755 INFO L109 eAbstractionObserver]: Analyzing ICFG const.c [2020-07-18 06:40:00,766 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 06:40:00,774 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 06:40:00,790 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 06:40:00,815 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 06:40:00,816 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 06:40:00,816 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 06:40:00,816 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 06:40:00,816 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 06:40:00,816 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 06:40:00,816 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 06:40:00,817 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 06:40:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-18 06:40:00,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-18 06:40:00,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 06:40:00,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 06:40:00,850 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 06:40:00,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 06:40:00,856 INFO L82 PathProgramCache]: Analyzing trace with hash 830498166, now seen corresponding path program 1 times [2020-07-18 06:40:00,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 06:40:00,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016922322] [2020-07-18 06:40:00,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 06:40:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 06:40:00,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 06:40:00,987 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:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) 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.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 06:40:00,997 INFO L168 Benchmark]: Toolchain (without parser) took 931.51 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 103.0 MB in the beginning and 154.6 MB in the end (delta: -51.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,000 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.66 ms. Allocated memory is still 145.2 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,003 INFO L168 Benchmark]: Boogie Preprocessor took 115.67 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.2 MB in the beginning and 182.4 MB in the end (delta: -89.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,005 INFO L168 Benchmark]: RCFGBuilder took 287.32 ms. Allocated memory is still 202.4 MB. Free memory was 182.4 MB in the beginning and 166.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,007 INFO L168 Benchmark]: TraceAbstraction took 244.13 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 154.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2020-07-18 06:40:01,015 INFO L336 ainManager$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 0.19 ms. Allocated memory is still 145.2 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 277.66 ms. Allocated memory is still 145.2 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.67 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.2 MB in the beginning and 182.4 MB in the end (delta: -89.2 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.32 ms. Allocated memory is still 202.4 MB. Free memory was 182.4 MB in the beginning and 166.2 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 244.13 ms. Allocated memory is still 202.4 MB. Free memory was 166.2 MB in the beginning and 154.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 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...