/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum05.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 01:55:51,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 01:55:51,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 01:55:51,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 01:55:51,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 01:55:51,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 01:55:51,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 01:55:51,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 01:55:51,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 01:55:51,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 01:55:51,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 01:55:51,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 01:55:51,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 01:55:51,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 01:55:51,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 01:55:51,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 01:55:51,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 01:55:51,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 01:55:51,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 01:55:51,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 01:55:51,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 01:55:51,650 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 01:55:51,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 01:55:51,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 01:55:51,655 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 01:55:51,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 01:55:51,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 01:55:51,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 01:55:51,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 01:55:51,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 01:55:51,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 01:55:51,658 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 01:55:51,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 01:55:51,658 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 01:55:51,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 01:55:51,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 01:55:51,659 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 01:55:51,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 01:55:51,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 01:55:51,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 01:55:51,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 01:55:51,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 01:55:51,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 01:55:51,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 01:55:52,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 01:55:52,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 01:55:52,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 01:55:52,101 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 01:55:52,101 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 01:55:52,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-11-07 01:55:52,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a7959b6/bf2c5ae66dce45b5bcc46db72e97c5af/FLAG5e875eedc [2020-11-07 01:55:52,913 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 01:55:52,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-11-07 01:55:52,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a7959b6/bf2c5ae66dce45b5bcc46db72e97c5af/FLAG5e875eedc [2020-11-07 01:55:53,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62a7959b6/bf2c5ae66dce45b5bcc46db72e97c5af [2020-11-07 01:55:53,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 01:55:53,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 01:55:53,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 01:55:53,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 01:55:53,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 01:55:53,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2577c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53, skipping insertion in model container [2020-11-07 01:55:53,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 01:55:53,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 01:55:53,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:55:53,566 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 01:55:53,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 01:55:53,610 INFO L208 MainTranslator]: Completed translation [2020-11-07 01:55:53,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53 WrapperNode [2020-11-07 01:55:53,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 01:55:53,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 01:55:53,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 01:55:53,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 01:55:53,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (1/1) ... [2020-11-07 01:55:53,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 01:55:53,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 01:55:53,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 01:55:53,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 01:55:53,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (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 [2020-11-07 01:55:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 01:55:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 01:55:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 01:55:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2020-11-07 01:55:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2020-11-07 01:55:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 01:55:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 01:55:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 01:55:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-07 01:55:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-07 01:55:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2020-11-07 01:55:53,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 01:55:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 01:55:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 01:55:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 01:55:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 01:55:53,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 01:55:54,156 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 01:55:54,157 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-11-07 01:55:54,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:54 BoogieIcfgContainer [2020-11-07 01:55:54,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 01:55:54,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 01:55:54,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 01:55:54,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 01:55:54,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:55:53" (1/3) ... [2020-11-07 01:55:54,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4a128d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:54, skipping insertion in model container [2020-11-07 01:55:54,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:53" (2/3) ... [2020-11-07 01:55:54,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4a128d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:55:54, skipping insertion in model container [2020-11-07 01:55:54,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:55:54" (3/3) ... [2020-11-07 01:55:54,170 INFO L111 eAbstractionObserver]: Analyzing ICFG rangesum05.i [2020-11-07 01:55:54,183 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 01:55:54,187 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 01:55:54,202 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 01:55:54,240 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 01:55:54,240 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 01:55:54,240 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 01:55:54,240 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 01:55:54,240 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 01:55:54,240 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 01:55:54,241 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 01:55:54,241 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 01:55:54,272 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-11-07 01:55:54,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-11-07 01:55:54,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 01:55:54,298 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1] [2020-11-07 01:55:54,298 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 01:55:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 01:55:54,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2144454122, now seen corresponding path program 1 times [2020-11-07 01:55:54,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 01:55:54,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197806004] [2020-11-07 01:55:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 01:55:54,423 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 01:55:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:55:54,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 01:55:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:55:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-07 01:55:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 01:55:54,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-11-07 01:55:54,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197806004] [2020-11-07 01:55:54,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 01:55:54,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2020-11-07 01:55:54,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247025624] [2020-11-07 01:55:54,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-11-07 01:55:54,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 01:55:54,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-11-07 01:55:54,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 01:55:54,746 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 37 states. [2020-11-07 01:55:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-07 01:55:54,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 01:55:54,761 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at least one of both input predicates is unknown: 98#true or 128#unknown at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.SdHoareTripleChecker$CheckHelper.check(SdHoareTripleChecker.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.SdHoareTripleChecker.checkCall(SdHoareTripleChecker.java:73) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkCall(EfficientHoareTripleChecker.java:72) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkCall(CachingHoareTripleChecker.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$CallSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.callSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.callSuccessors(TotalizeNwa.java:260) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.callSuccessors(ComplementDeterministicNwa.java:131) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:252) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.callSuccessors(ProductNwa.java:244) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addCallsAndSuccessors(NestedWordAutomatonReachableStates.java:1087) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:967) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) 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:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-07 01:55:54,767 INFO L168 Benchmark]: Toolchain (without parser) took 1508.68 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 115.3 MB in the end (delta: 14.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-11-07 01:55:54,768 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 01:55:54,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.61 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 119.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 01:55:54,770 INFO L168 Benchmark]: Boogie Preprocessor took 42.02 ms. Allocated memory is still 155.2 MB. Free memory was 119.8 MB in the beginning and 118.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 01:55:54,771 INFO L168 Benchmark]: RCFGBuilder took 506.72 ms. Allocated memory is still 155.2 MB. Free memory was 117.9 MB in the beginning and 137.3 MB in the end (delta: -19.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2020-11-07 01:55:54,772 INFO L168 Benchmark]: TraceAbstraction took 600.92 ms. Allocated memory is still 155.2 MB. Free memory was 136.7 MB in the beginning and 115.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 01:55:54,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 343.61 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 119.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.02 ms. Allocated memory is still 155.2 MB. Free memory was 119.8 MB in the beginning and 118.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 506.72 ms. Allocated memory is still 155.2 MB. Free memory was 117.9 MB in the beginning and 137.3 MB in the end (delta: -19.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 600.92 ms. Allocated memory is still 155.2 MB. Free memory was 136.7 MB in the beginning and 115.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at least one of both input predicates is unknown: 98#true or 128#unknown de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at least one of both input predicates is unknown: 98#true or 128#unknown: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$CoverageRelation.isCovered(PredicateUnifier.java:593) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...