/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:11:12,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:11:12,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:11:12,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:11:12,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:11:12,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:11:12,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:11:12,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:11:12,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:11:12,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:11:12,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:11:12,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:11:13,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:11:13,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:11:13,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:11:13,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:11:13,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:11:13,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:11:13,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:11:13,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:11:13,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-01-31 23:11:13,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:11:13,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:11:13,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:11:13,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:11:13,042 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:11:13,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:11:13,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:11:13,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:11:13,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:11:13,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:11:13,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:11:13,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:11:13,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:11:13,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:11:13,043 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-01-31 23:11:13,043 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:11:13,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:11:13,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:11:13,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:11:13,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:11:13,234 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:11:13,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum.i [2022-01-31 23:11:13,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52a178cf/a00c179243bc4f9ea254220f277aca3d/FLAG974efe27f [2022-01-31 23:11:13,650 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:11:13,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i [2022-01-31 23:11:13,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52a178cf/a00c179243bc4f9ea254220f277aca3d/FLAG974efe27f [2022-01-31 23:11:13,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e52a178cf/a00c179243bc4f9ea254220f277aca3d [2022-01-31 23:11:13,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:11:13,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:11:13,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:11:13,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:11:13,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:11:13,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d88c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13, skipping insertion in model container [2022-01-31 23:11:13,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:11:13,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:11:13,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i[1544,1557] [2022-01-31 23:11:13,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:11:13,854 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:11:13,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i[1544,1557] [2022-01-31 23:11:13,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:11:13,895 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:11:13,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13 WrapperNode [2022-01-31 23:11:13,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:11:13,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:11:13,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:11:13,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:11:13,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:11:13,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:11:13,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:11:13,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:11:13,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (1/1) ... [2022-01-31 23:11:13,948 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:11:13,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:11:13,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 23:11:13,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2022-01-31 23:11:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:11:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:11:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:11:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:11:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:11:14,041 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:11:14,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:11:14,223 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:11:14,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:11:14,228 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 23:11:14,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:11:14 BoogieIcfgContainer [2022-01-31 23:11:14,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:11:14,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:11:14,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:11:14,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:11:14,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:11:13" (1/3) ... [2022-01-31 23:11:14,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3857d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:11:14, skipping insertion in model container [2022-01-31 23:11:14,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:11:13" (2/3) ... [2022-01-31 23:11:14,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b3857d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:11:14, skipping insertion in model container [2022-01-31 23:11:14,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:11:14" (3/3) ... [2022-01-31 23:11:14,236 INFO L111 eAbstractionObserver]: Analyzing ICFG rangesum.i [2022-01-31 23:11:14,240 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:11:14,240 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:11:14,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:11:14,272 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-01-31 23:11:14,272 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:11:14,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 28 states have internal predecessors, (38), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:11:14,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 23:11:14,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:11:14,289 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:11:14,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:11:14,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:11:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash -175794215, now seen corresponding path program 1 times [2022-01-31 23:11:14,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:11:14,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [326597673] [2022-01-31 23:11:14,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:11:14,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:11:14,362 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:11:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:11:14,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:11:14,474 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No Interpolants at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.getInterpolants(InterpolatingTraceCheckCraig.java:273) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:179) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:126) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:249) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-31 23:11:14,482 INFO L158 Benchmark]: Toolchain (without parser) took 813.50ms. Allocated memory is still 184.5MB. Free memory was 130.0MB in the beginning and 128.0MB in the end (delta: 2.0MB). Peak memory consumption was 1.3MB. Max. memory is 8.0GB. [2022-01-31 23:11:14,483 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:11:14,483 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.84ms. Allocated memory is still 184.5MB. Free memory was 129.8MB in the beginning and 155.7MB in the end (delta: -25.9MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2022-01-31 23:11:14,484 INFO L158 Benchmark]: Boogie Preprocessor took 36.33ms. Allocated memory is still 184.5MB. Free memory was 155.7MB in the beginning and 154.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 23:11:14,485 INFO L158 Benchmark]: RCFGBuilder took 296.25ms. Allocated memory is still 184.5MB. Free memory was 154.2MB in the beginning and 141.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 23:11:14,485 INFO L158 Benchmark]: TraceAbstraction took 249.40ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 128.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 23:11:14,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 146.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.84ms. Allocated memory is still 184.5MB. Free memory was 129.8MB in the beginning and 155.7MB in the end (delta: -25.9MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.33ms. Allocated memory is still 184.5MB. Free memory was 155.7MB in the beginning and 154.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 296.25ms. Allocated memory is still 184.5MB. Free memory was 154.2MB in the beginning and 141.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 249.40ms. Allocated memory is still 184.5MB. Free memory was 141.1MB in the beginning and 128.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No Interpolants de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No Interpolants: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.getInterpolants(InterpolatingTraceCheckCraig.java:273) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-31 23:11:14,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...