/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 00:33:56,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 00:33:56,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 00:33:56,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 00:33:56,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 00:33:56,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 00:33:56,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 00:33:56,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 00:33:56,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 00:33:56,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 00:33:56,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 00:33:56,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 00:33:56,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 00:33:56,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 00:33:56,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 00:33:56,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 00:33:56,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 00:33:56,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 00:33:56,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 00:33:56,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 00:33:56,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 00:33:56,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 00:33:56,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 00:33:56,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 00:33:56,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 00:33:56,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 00:33:56,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 00:33:56,951 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 00:33:56,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 00:33:56,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 00:33:56,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 00:33:56,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 00:33:56,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 00:33:56,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 00:33:56,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 00:33:56,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 00:33:56,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 00:33:56,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 00:33:56,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 00:33:56,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 00:33:56,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 00:33:56,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 00:33:56,994 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 00:33:56,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 00:33:56,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 00:33:56,995 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 00:33:56,996 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 00:33:56,996 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 00:33:56,996 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 00:33:56,996 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 00:33:56,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 00:33:56,997 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 00:33:56,997 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 00:33:56,997 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 00:33:56,997 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 00:33:56,997 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 00:33:56,998 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 00:33:56,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 00:33:56,999 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 00:33:56,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 00:33:56,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 00:33:56,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 00:33:56,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 00:33:57,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 00:33:57,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 00:33:57,000 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 00:33:57,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 00:33:57,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 00:33:57,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 00:33:57,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 00:33:57,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 00:33:57,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 00:33:57,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 00:33:57,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 00:33:57,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 00:33:57,002 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 00:33:57,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 00:33:57,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 00:33:57,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 00:33:57,003 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 00:33:57,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 00:33:57,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 00:33:57,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 00:33:57,322 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 00:33:57,323 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 00:33:57,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-simple-white-blue-2.i [2019-11-24 00:33:57,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7baed3ee/0477ac1199c0439ca8f8a77f7622b10d/FLAGdb6169b28 [2019-11-24 00:33:58,008 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 00:33:58,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-simple-white-blue-2.i [2019-11-24 00:33:58,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7baed3ee/0477ac1199c0439ca8f8a77f7622b10d/FLAGdb6169b28 [2019-11-24 00:33:58,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7baed3ee/0477ac1199c0439ca8f8a77f7622b10d [2019-11-24 00:33:58,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 00:33:58,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 00:33:58,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 00:33:58,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 00:33:58,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 00:33:58,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5362047b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58, skipping insertion in model container [2019-11-24 00:33:58,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 00:33:58,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 00:33:58,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:33:58,762 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 00:33:58,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:33:58,864 INFO L208 MainTranslator]: Completed translation [2019-11-24 00:33:58,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58 WrapperNode [2019-11-24 00:33:58,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 00:33:58,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 00:33:58,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 00:33:58,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 00:33:58,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 00:33:58,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 00:33:58,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 00:33:58,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 00:33:58,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (1/1) ... [2019-11-24 00:33:58,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 00:33:58,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 00:33:58,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 00:33:58,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 00:33:58,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (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 [2019-11-24 00:33:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 00:33:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 00:33:59,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 00:33:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 00:33:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 00:33:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 00:33:59,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 00:33:59,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 00:33:59,605 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 00:33:59,606 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-24 00:33:59,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:59 BoogieIcfgContainer [2019-11-24 00:33:59,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 00:33:59,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 00:33:59,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 00:33:59,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 00:33:59,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:33:58" (1/3) ... [2019-11-24 00:33:59,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62298f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:59, skipping insertion in model container [2019-11-24 00:33:59,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:58" (2/3) ... [2019-11-24 00:33:59,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62298f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:33:59, skipping insertion in model container [2019-11-24 00:33:59,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:59" (3/3) ... [2019-11-24 00:33:59,615 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-simple-white-blue-2.i [2019-11-24 00:33:59,624 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 00:33:59,632 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 00:33:59,641 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 00:33:59,663 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 00:33:59,663 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 00:33:59,663 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 00:33:59,663 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 00:33:59,663 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 00:33:59,664 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 00:33:59,664 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 00:33:59,664 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 00:33:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-24 00:33:59,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-24 00:33:59,685 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:33:59,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:33:59,686 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:33:59,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:33:59,692 INFO L82 PathProgramCache]: Analyzing trace with hash 744080378, now seen corresponding path program 1 times [2019-11-24 00:33:59,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:33:59,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118388610] [2019-11-24 00:33:59,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:33:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:33:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:33:59,838 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118388610] [2019-11-24 00:33:59,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:33:59,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-24 00:33:59,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364280637] [2019-11-24 00:33:59,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-24 00:33:59,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:33:59,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-24 00:33:59,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 00:33:59,858 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-24 00:33:59,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:33:59,875 INFO L93 Difference]: Finished difference Result 38 states and 59 transitions. [2019-11-24 00:33:59,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-24 00:33:59,877 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-24 00:33:59,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:33:59,887 INFO L225 Difference]: With dead ends: 38 [2019-11-24 00:33:59,888 INFO L226 Difference]: Without dead ends: 18 [2019-11-24 00:33:59,891 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-24 00:33:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-24 00:33:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-24 00:33:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-24 00:33:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-24 00:33:59,928 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-11-24 00:33:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:33:59,929 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-24 00:33:59,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-24 00:33:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-24 00:33:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 00:33:59,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:33:59,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:33:59,930 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:33:59,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:33:59,931 INFO L82 PathProgramCache]: Analyzing trace with hash 210869193, now seen corresponding path program 1 times [2019-11-24 00:33:59,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:33:59,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049870767] [2019-11-24 00:33:59,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:33:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:34:00,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:34:00,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049870767] [2019-11-24 00:34:00,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 00:34:00,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-24 00:34:00,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528861665] [2019-11-24 00:34:00,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 00:34:00,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 00:34:00,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 00:34:00,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-24 00:34:00,240 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 7 states. [2019-11-24 00:34:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 00:34:00,681 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2019-11-24 00:34:00,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 00:34:00,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-11-24 00:34:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 00:34:00,685 INFO L225 Difference]: With dead ends: 42 [2019-11-24 00:34:00,685 INFO L226 Difference]: Without dead ends: 40 [2019-11-24 00:34:00,686 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-11-24 00:34:00,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-24 00:34:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 24. [2019-11-24 00:34:00,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-24 00:34:00,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2019-11-24 00:34:00,695 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 12 [2019-11-24 00:34:00,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 00:34:00,695 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-11-24 00:34:00,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 00:34:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2019-11-24 00:34:00,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-24 00:34:00,696 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 00:34:00,697 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 00:34:00,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 00:34:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 00:34:00,697 INFO L82 PathProgramCache]: Analyzing trace with hash -2010007346, now seen corresponding path program 1 times [2019-11-24 00:34:00,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 00:34:00,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793552767] [2019-11-24 00:34:00,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 00:34:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:34:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:34:00,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793552767] [2019-11-24 00:34:00,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275117558] [2019-11-24 00:34:00,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 00:34:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 00:34:00,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-24 00:34:00,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 00:34:01,065 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,066 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-24 00:34:01,066 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,120 INFO L567 ElimStorePlain]: treesize reduction 10, result has 87.3 percent of original size [2019-11-24 00:34:01,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,133 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,141 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2019-11-24 00:34:01,141 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,180 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2019-11-24 00:34:01,181 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,198 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,199 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,200 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:64, output treesize:47 [2019-11-24 00:34:01,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:34:01,302 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,303 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 113 treesize of output 117 [2019-11-24 00:34:01,306 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,371 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,372 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 136 [2019-11-24 00:34:01,374 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:01,716 WARN L192 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-11-24 00:34:01,718 INFO L567 ElimStorePlain]: treesize reduction 4, result has 98.2 percent of original size [2019-11-24 00:34:01,723 INFO L392 ElimStorePlain]: Different costs {4=[|v_#memory_$Pointer$.base_42|, |v_#memory_$Pointer$.offset_42|], 19=[|v_#memory_$Pointer$.offset_44|, |v_#memory_$Pointer$.base_44|]} [2019-11-24 00:34:01,735 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:34:01,744 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:34:01,866 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-11-24 00:34:01,867 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,874 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:34:01,884 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:34:01,964 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:01,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:01,998 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,068 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 89 [2019-11-24 00:34:02,070 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,082 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,126 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 89 [2019-11-24 00:34:02,127 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,205 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:02,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,220 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,221 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,223 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,250 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 93 [2019-11-24 00:34:02,251 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,259 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,282 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 93 [2019-11-24 00:34:02,283 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,371 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:02,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-11-24 00:34:02,375 INFO L221 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:232, output treesize:170 [2019-11-24 00:34:02,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-24 00:34:02,595 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:02,595 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 112 treesize of output 127 [2019-11-24 00:34:02,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-24 00:34:02,604 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-24 00:34:02,635 INFO L567 ElimStorePlain]: treesize reduction 52, result has 50.0 percent of original size [2019-11-24 00:34:02,657 INFO L343 Elim1Store]: treesize reduction 11, result has 42.1 percent of original size [2019-11-24 00:34:02,657 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 29 [2019-11-24 00:34:02,659 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,664 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-24 00:34:02,665 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-24 00:34:02,665 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:121, output treesize:7 [2019-11-24 00:34:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 00:34:02,670 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 00:34:02,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 00:34:02,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 00:34:02,898 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) 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:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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:316) 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) [2019-11-24 00:34:02,906 INFO L168 Benchmark]: Toolchain (without parser) took 4668.86 ms. Allocated memory was 136.8 MB in the beginning and 252.7 MB in the end (delta: 115.9 MB). Free memory was 100.8 MB in the beginning and 168.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,913 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.75 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 167.3 MB in the end (delta: -66.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,916 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.97 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 164.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,917 INFO L168 Benchmark]: Boogie Preprocessor took 36.19 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 163.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,917 INFO L168 Benchmark]: RCFGBuilder took 650.45 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 130.5 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,924 INFO L168 Benchmark]: TraceAbstraction took 3295.02 ms. Allocated memory was 200.3 MB in the beginning and 252.7 MB in the end (delta: 52.4 MB). Free memory was 130.5 MB in the beginning and 168.9 MB in the end (delta: -38.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-11-24 00:34:02,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 628.75 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 100.5 MB in the beginning and 167.3 MB in the end (delta: -66.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.97 ms. Allocated memory is still 200.3 MB. Free memory was 167.3 MB in the beginning and 164.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.19 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 163.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 650.45 ms. Allocated memory is still 200.3 MB. Free memory was 163.4 MB in the beginning and 130.5 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3295.02 ms. Allocated memory was 200.3 MB in the beginning and 252.7 MB in the end (delta: 52.4 MB). Free memory was 130.5 MB in the beginning and 168.9 MB in the end (delta: -38.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...