/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 18:36:03,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 18:36:03,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 18:36:03,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 18:36:03,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 18:36:03,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 18:36:03,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 18:36:03,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 18:36:03,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 18:36:03,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 18:36:03,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 18:36:03,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 18:36:03,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 18:36:03,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 18:36:03,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 18:36:03,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 18:36:03,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 18:36:03,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 18:36:03,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 18:36:03,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 18:36:03,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 18:36:03,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 18:36:03,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 18:36:03,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 18:36:03,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 18:36:03,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 18:36:03,185 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 18:36:03,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 18:36:03,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 18:36:03,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 18:36:03,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 18:36:03,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 18:36:03,187 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 18:36:03,187 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 18:36:03,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 18:36:03,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 18:36:03,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 18:36:03,422 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 18:36:03,423 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 18:36:03,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum.i [2022-01-31 18:36:03,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdd2a786/78fe27af784b45018f386a49b2556c8d/FLAG0d8f8dd4b [2022-01-31 18:36:03,843 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 18:36:03,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum.i [2022-01-31 18:36:03,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdd2a786/78fe27af784b45018f386a49b2556c8d/FLAG0d8f8dd4b [2022-01-31 18:36:04,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdd2a786/78fe27af784b45018f386a49b2556c8d [2022-01-31 18:36:04,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 18:36:04,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 18:36:04,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 18:36:04,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 18:36:04,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 18:36:04,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a1649d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04, skipping insertion in model container [2022-01-31 18:36:04,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 18:36:04,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 18:36:04,507 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 18:36:04,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 18:36:04,523 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 18:36:04,569 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 18:36:04,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 18:36:04,581 INFO L208 MainTranslator]: Completed translation [2022-01-31 18:36:04,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04 WrapperNode [2022-01-31 18:36:04,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 18:36:04,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 18:36:04,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 18:36:04,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 18:36:04,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 18:36:04,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 18:36:04,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 18:36:04,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 18:36:04,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (1/1) ... [2022-01-31 18:36:04,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 18:36:04,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 18:36:04,658 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 18:36:04,663 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 18:36:04,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 18:36:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 18:36:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 18:36:04,692 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2022-01-31 18:36:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2022-01-31 18:36:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 18:36:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 18:36:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 18:36:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-01-31 18:36:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-01-31 18:36:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 18:36:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 18:36:04,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 18:36:04,696 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2022-01-31 18:36:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 18:36:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2022-01-31 18:36:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 18:36:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 18:36:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 18:36:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 18:36:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 18:36:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 18:36:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 18:36:04,756 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 18:36:04,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 18:36:04,969 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 18:36:04,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 18:36:04,975 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-31 18:36:04,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 06:36:04 BoogieIcfgContainer [2022-01-31 18:36:04,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 18:36:04,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 18:36:04,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 18:36:04,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 18:36:04,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 06:36:04" (1/3) ... [2022-01-31 18:36:04,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 06:36:04, skipping insertion in model container [2022-01-31 18:36:04,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 06:36:04" (2/3) ... [2022-01-31 18:36:04,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22cdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 06:36:04, skipping insertion in model container [2022-01-31 18:36:04,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 06:36:04" (3/3) ... [2022-01-31 18:36:04,987 INFO L111 eAbstractionObserver]: Analyzing ICFG rangesum.i [2022-01-31 18:36:04,991 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 18:36:04,991 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 18:36:05,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 18:36:05,041 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=JORDAN [2022-01-31 18:36:05,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 18:36:05,057 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 18:36:05,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-31 18:36:05,075 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 18:36:05,076 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 18:36:05,076 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 18:36:05,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 18:36:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash -175794215, now seen corresponding path program 1 times [2022-01-31 18:36:05,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 18:36:05,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698592950] [2022-01-31 18:36:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 18:36:05,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 18:36:05,142 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 18:36:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 18:36:05,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 18:36:05,226 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 18:36:05,232 INFO L158 Benchmark]: Toolchain (without parser) took 954.94ms. Allocated memory was 208.7MB in the beginning and 308.3MB in the end (delta: 99.6MB). Free memory was 152.4MB in the beginning and 250.6MB in the end (delta: -98.2MB). Peak memory consumption was 746.6kB. Max. memory is 8.0GB. [2022-01-31 18:36:05,233 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 168.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 18:36:05,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.51ms. Allocated memory was 208.7MB in the beginning and 308.3MB in the end (delta: 99.6MB). Free memory was 152.2MB in the beginning and 279.4MB in the end (delta: -127.2MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-01-31 18:36:05,235 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 308.3MB. Free memory was 279.4MB in the beginning and 277.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-31 18:36:05,236 INFO L158 Benchmark]: RCFGBuilder took 356.39ms. Allocated memory is still 308.3MB. Free memory was 277.8MB in the beginning and 264.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-01-31 18:36:05,236 INFO L158 Benchmark]: TraceAbstraction took 251.45ms. Allocated memory is still 308.3MB. Free memory was 263.7MB in the beginning and 250.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 18:36:05,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 208.7MB. Free memory is still 168.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 305.51ms. Allocated memory was 208.7MB in the beginning and 308.3MB in the end (delta: 99.6MB). Free memory was 152.2MB in the beginning and 279.4MB in the end (delta: -127.2MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 308.3MB. Free memory was 279.4MB in the beginning and 277.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 356.39ms. Allocated memory is still 308.3MB. Free memory was 277.8MB in the beginning and 264.2MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 251.45ms. Allocated memory is still 308.3MB. Free memory was 263.7MB in the beginning and 250.6MB 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 18:36:05,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...