./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array1_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array1_pattern.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7177087dad0908960100a54d61645da99f4602ec ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array1_pattern.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7177087dad0908960100a54d61645da99f4602ec ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:21,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:21,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:21,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:21,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:21,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:21,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:21,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:21,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:21,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:21,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:21,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:21,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:21,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:21,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:21,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:21,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:21,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:21,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:21,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:21,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:21,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:21,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:21,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:21,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:21,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:21,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:21,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:21,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:21,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:21,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:21,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:21,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:21,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:21,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:21,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:21,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:21,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:21,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:21,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:21,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:21,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:21,559 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:21,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:21,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:21,562 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:21,562 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:21,562 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:21,563 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:21,563 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:21,563 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:21,563 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:21,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:21,564 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:21,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:21,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:21,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:21,566 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:21,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:21,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:21,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:21,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:21,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:21,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:21,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:21,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:21,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:21,569 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7177087dad0908960100a54d61645da99f4602ec [2019-10-22 11:22:21,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:21,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:21,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:21,643 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:21,644 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:21,644 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/../../sv-benchmarks/c/array-patterns/array1_pattern.c [2019-10-22 11:22:21,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/b10673c4a/faf5af2d0d78411dbd984f3eadd8e8b6/FLAG6b023834a [2019-10-22 11:22:22,097 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:22,098 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/sv-benchmarks/c/array-patterns/array1_pattern.c [2019-10-22 11:22:22,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/b10673c4a/faf5af2d0d78411dbd984f3eadd8e8b6/FLAG6b023834a [2019-10-22 11:22:22,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/b10673c4a/faf5af2d0d78411dbd984f3eadd8e8b6 [2019-10-22 11:22:22,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:22,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:22,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:22,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:22,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:22,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c55a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22, skipping insertion in model container [2019-10-22 11:22:22,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,504 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:22,523 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:22,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:22,689 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:22,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:22,798 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:22,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22 WrapperNode [2019-10-22 11:22:22,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:22,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:22,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:22,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:22,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:22,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:22,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:22,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:22,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... [2019-10-22 11:22:22,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:22,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:22,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:22,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:22,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/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 [2019-10-22 11:22:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:22,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:22:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:23,122 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:23,122 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 11:22:23,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:23 BoogieIcfgContainer [2019-10-22 11:22:23,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:23,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:23,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:23,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:23,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:22" (1/3) ... [2019-10-22 11:22:23,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9503b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:23, skipping insertion in model container [2019-10-22 11:22:23,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:22" (2/3) ... [2019-10-22 11:22:23,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9503b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:23, skipping insertion in model container [2019-10-22 11:22:23,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:23" (3/3) ... [2019-10-22 11:22:23,137 INFO L109 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2019-10-22 11:22:23,146 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:23,152 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:23,163 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:23,187 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:23,187 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:23,187 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:23,187 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:23,187 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:23,188 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:23,188 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:23,188 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:22:23,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:23,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,209 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,211 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:23,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1863822598, now seen corresponding path program 1 times [2019-10-22 11:22:23,225 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,225 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519880962] [2019-10-22 11:22:23,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519880962] [2019-10-22 11:22:23,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:23,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845220102] [2019-10-22 11:22:23,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:23,340 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:23,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:23,352 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 11:22:23,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,369 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2019-10-22 11:22:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:23,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 11:22:23,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,380 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:22:23,380 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:22:23,383 INFO L600 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 [2019-10-22 11:22:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:22:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 11:22:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:22:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-10-22 11:22:23,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2019-10-22 11:22:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,415 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-10-22 11:22:23,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 11:22:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:23,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,415 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,416 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:23,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,416 INFO L82 PathProgramCache]: Analyzing trace with hash -346475582, now seen corresponding path program 1 times [2019-10-22 11:22:23,416 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890611644] [2019-10-22 11:22:23,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,435 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 11:22:23,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883646150] [2019-10-22 11:22:23,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/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 [2019-10-22 11:22:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:22:23,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,565 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:23,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:23,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890611644] [2019-10-22 11:22:23,576 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 11:22:23,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883646150] [2019-10-22 11:22:23,576 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-10-22 11:22:23,577 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837683662] [2019-10-22 11:22:23,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:22:23,578 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:22:23,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,579 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 4 states. [2019-10-22 11:22:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,637 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2019-10-22 11:22:23,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:23,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 11:22:23,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,638 INFO L225 Difference]: With dead ends: 24 [2019-10-22 11:22:23,638 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 11:22:23,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:22:23,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 11:22:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-10-22 11:22:23,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:22:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-22 11:22:23,643 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-10-22 11:22:23,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,643 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-22 11:22:23,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:22:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 11:22:23,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:22:23,644 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,644 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:23,845 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:23,845 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:23,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:23,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1001673148, now seen corresponding path program 1 times [2019-10-22 11:22:23,845 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:23,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048371607] [2019-10-22 11:22:23,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:23,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:23,867 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 11:22:23,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460402911] [2019-10-22 11:22:23,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:23,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:22:23,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:22:23,930 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:23,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:22:23,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048371607] [2019-10-22 11:22:23,939 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-22 11:22:23,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460402911] [2019-10-22 11:22:23,939 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:23,939 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-22 11:22:23,940 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739753940] [2019-10-22 11:22:23,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:23,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:23,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:23,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:23,941 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2019-10-22 11:22:23,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:23,985 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-10-22 11:22:23,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:22:23,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 11:22:23,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:23,986 INFO L225 Difference]: With dead ends: 21 [2019-10-22 11:22:23,987 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 11:22:23,987 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:23,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 11:22:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-10-22 11:22:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 11:22:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-10-22 11:22:23,990 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2019-10-22 11:22:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:23,991 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-10-22 11:22:23,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-22 11:22:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:22:23,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:23,991 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:24,192 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:24,193 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:24,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:24,193 INFO L82 PathProgramCache]: Analyzing trace with hash -481987642, now seen corresponding path program 1 times [2019-10-22 11:22:24,193 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:24,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393600720] [2019-10-22 11:22:24,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:24,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:24,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:24,203 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-22 11:22:24,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646505876] [2019-10-22 11:22:24,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:24,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-22 11:22:24,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:24,296 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 11:22:24,297 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,313 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:24,313 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,314 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:17 [2019-10-22 11:22:24,373 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-22 11:22:24,377 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 45 treesize of output 29 [2019-10-22 11:22:24,377 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:24,409 INFO L567 ElimStorePlain]: treesize reduction 3, result has 93.8 percent of original size [2019-10-22 11:22:24,410 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 11:22:24,411 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:65, output treesize:45 [2019-10-22 11:22:24,487 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:24,487 INFO L375 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 42 [2019-10-22 11:22:24,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,491 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-10-22 11:22:24,513 INFO L567 ElimStorePlain]: treesize reduction 21, result has 47.5 percent of original size [2019-10-22 11:22:24,515 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 11:22:24,515 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:55, output treesize:12 [2019-10-22 11:22:24,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:24,553 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:24,645 INFO L341 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2019-10-22 11:22:24,645 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 254 treesize of output 219 [2019-10-22 11:22:24,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:24,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,656 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:24,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:24,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,710 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:24,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,727 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,732 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,737 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,740 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,741 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:24,877 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_61, v_prenex_50, v_prenex_60, v_prenex_9, v_prenex_21, v_prenex_10, v_prenex_64, v_prenex_53, v_prenex_30, v_prenex_25, v_prenex_14, v_prenex_12, v_prenex_55, v_prenex_18, v_prenex_28, v_prenex_27, v_prenex_4, v_prenex_6], 1=[v_prenex_43, v_prenex_42, v_prenex_41, v_prenex_40, v_prenex_47, v_prenex_46, v_prenex_45, v_prenex_44, v_prenex_49, v_prenex_48, v_prenex_1, v_prenex_2, v_prenex_3, v_prenex_5, v_prenex_7, v_prenex_72, v_prenex_71, v_prenex_70, v_prenex_32, v_prenex_76, v_prenex_31, v_prenex_75, v_prenex_74, v_prenex_73, v_prenex_36, v_prenex_35, v_prenex_34, v_prenex_33, v_prenex_39, v_prenex_38, v_prenex_37, v_arrayElimArr_1, v_prenex_65, v_prenex_20, v_prenex_63, v_prenex_62, v_prenex_69, v_prenex_24, v_prenex_68, v_prenex_23, v_prenex_67, v_prenex_22, v_prenex_66, v_prenex_29, v_prenex_26, v_prenex_19, v_prenex_8, v_prenex_54, v_prenex_52, v_prenex_51, v_prenex_58, v_prenex_13, v_prenex_57, v_prenex_56, v_prenex_11, v_prenex_17, v_prenex_16, v_prenex_15, v_prenex_59]} [2019-10-22 11:22:25,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:22:25,079 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no XNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:244) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) 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.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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) [2019-10-22 11:22:25,083 INFO L168 Benchmark]: Toolchain (without parser) took 2592.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 943.2 MB in the beginning and 888.4 MB in the end (delta: 54.8 MB). Peak memory consumption was 149.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:25,083 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:25,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:25,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:25,085 INFO L168 Benchmark]: Boogie Preprocessor took 23.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:25,085 INFO L168 Benchmark]: RCFGBuilder took 269.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:25,086 INFO L168 Benchmark]: TraceAbstraction took 1957.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 888.4 MB in the end (delta: 170.6 MB). Peak memory consumption was 170.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:25,090 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 943.2 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 269.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1957.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 888.4 MB in the end (delta: 170.6 MB). Peak memory consumption was 170.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no XNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no XNF: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:244) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:27,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:27,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:27,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:27,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:27,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:27,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:27,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:27,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:27,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:27,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:27,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:27,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:27,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:27,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:27,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:27,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:27,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:27,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:27,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:27,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:27,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:27,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:27,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:27,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:27,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:27,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:27,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:27,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:27,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:27,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:27,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:27,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:27,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:27,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:27,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:27,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:27,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:27,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:27,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:27,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:27,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:22:27,333 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:27,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:27,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:27,334 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:27,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:27,334 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:27,334 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:27,334 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:27,335 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:27,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:27,335 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:27,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:22:27,337 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:22:27,337 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:27,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:27,337 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:22:27,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:27,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:27,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:27,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:27,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:27,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:27,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:27,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:27,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:27,339 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:22:27,340 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:22:27,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:27,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:27,340 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7177087dad0908960100a54d61645da99f4602ec [2019-10-22 11:22:27,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:27,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:27,386 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:27,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:27,391 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:27,391 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/../../sv-benchmarks/c/array-patterns/array1_pattern.c [2019-10-22 11:22:27,441 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/ccb7cfc74/b3c7fb5f567c44339322df83f0be3579/FLAGb86435ee3 [2019-10-22 11:22:27,818 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:27,819 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/sv-benchmarks/c/array-patterns/array1_pattern.c [2019-10-22 11:22:27,825 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/ccb7cfc74/b3c7fb5f567c44339322df83f0be3579/FLAGb86435ee3 [2019-10-22 11:22:28,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/data/ccb7cfc74/b3c7fb5f567c44339322df83f0be3579 [2019-10-22 11:22:28,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:28,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:28,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:28,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:28,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:28,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b2d37e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28, skipping insertion in model container [2019-10-22 11:22:28,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,231 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:28,247 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:28,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:28,436 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:28,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:28,493 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:28,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28 WrapperNode [2019-10-22 11:22:28,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:28,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:28,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:28,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:28,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:28,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:28,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:28,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... [2019-10-22 11:22:28,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:28,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:28,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:28,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:28,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/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 [2019-10-22 11:22:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:22:28,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:28,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:28,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:22:28,944 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:28,945 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 11:22:28,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:28 BoogieIcfgContainer [2019-10-22 11:22:28,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:28,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:28,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:28,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:28,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:28" (1/3) ... [2019-10-22 11:22:28,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e5369f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:28, skipping insertion in model container [2019-10-22 11:22:28,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:28" (2/3) ... [2019-10-22 11:22:28,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e5369f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:28, skipping insertion in model container [2019-10-22 11:22:28,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:28" (3/3) ... [2019-10-22 11:22:28,961 INFO L109 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2019-10-22 11:22:28,970 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:28,977 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:22:28,999 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:22:29,043 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:29,043 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:29,043 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:29,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:29,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:29,043 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:29,043 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:29,044 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 11:22:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:29,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:29,061 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:29,062 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:29,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:29,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1863822598, now seen corresponding path program 1 times [2019-10-22 11:22:29,073 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:29,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1606764127] [2019-10-22 11:22:29,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:29,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:22:29,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:29,163 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:29,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:29,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1606764127] [2019-10-22 11:22:29,167 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:29,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:22:29,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569917518] [2019-10-22 11:22:29,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:29,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:29,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:29,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:29,187 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 11:22:29,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:29,202 INFO L93 Difference]: Finished difference Result 30 states and 42 transitions. [2019-10-22 11:22:29,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:29,203 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 11:22:29,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:29,212 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:22:29,212 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:22:29,215 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:29,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:22:29,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 11:22:29,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:22:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-10-22 11:22:29,245 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2019-10-22 11:22:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:29,246 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-10-22 11:22:29,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 11:22:29,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:29,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:29,246 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:29,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:29,448 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:29,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:29,448 INFO L82 PathProgramCache]: Analyzing trace with hash -346475582, now seen corresponding path program 1 times [2019-10-22 11:22:29,448 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:29,449 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1113882818] [2019-10-22 11:22:29,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:29,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:22:29,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:29,547 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:29,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:29,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113882818] [2019-10-22 11:22:29,563 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:29,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-22 11:22:29,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281733493] [2019-10-22 11:22:29,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:22:29,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:29,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:22:29,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:22:29,565 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 5 states. [2019-10-22 11:22:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:29,602 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-10-22 11:22:29,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:22:29,602 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 11:22:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:29,603 INFO L225 Difference]: With dead ends: 18 [2019-10-22 11:22:29,603 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:22:29,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:22:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:22:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:22:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:22:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-22 11:22:29,608 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-10-22 11:22:29,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:29,609 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-22 11:22:29,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:22:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-22 11:22:29,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:22:29,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:29,610 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:29,812 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:29,813 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:29,813 INFO L82 PathProgramCache]: Analyzing trace with hash 2097648068, now seen corresponding path program 1 times [2019-10-22 11:22:29,814 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:29,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1129484861] [2019-10-22 11:22:29,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:29,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:22:29,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:29,952 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:30,008 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1129484861] [2019-10-22 11:22:30,008 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:30,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-10-22 11:22:30,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812497425] [2019-10-22 11:22:30,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:22:30,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:22:30,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:22:30,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:30,010 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 7 states. [2019-10-22 11:22:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:30,179 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-10-22 11:22:30,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:22:30,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-22 11:22:30,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:30,181 INFO L225 Difference]: With dead ends: 28 [2019-10-22 11:22:30,182 INFO L226 Difference]: Without dead ends: 17 [2019-10-22 11:22:30,182 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:22:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-22 11:22:30,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-10-22 11:22:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-22 11:22:30,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-10-22 11:22:30,187 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2019-10-22 11:22:30,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:30,187 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-10-22 11:22:30,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:22:30,187 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-22 11:22:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 11:22:30,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:30,188 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:30,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:30,389 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:30,389 INFO L82 PathProgramCache]: Analyzing trace with hash -481987642, now seen corresponding path program 1 times [2019-10-22 11:22:30,390 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:22:30,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [972810114] [2019-10-22 11:22:30,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b461f8e7-0920-4a3e-bb44-6f9ddb6f8f43/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:30,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-22 11:22:30,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:22:30,612 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-10-22 11:22:30,612 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:30,652 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:30,653 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 11:22:30,653 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2019-10-22 11:22:30,821 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-22 11:22:30,825 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 57 treesize of output 37 [2019-10-22 11:22:30,826 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:30,953 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2019-10-22 11:22:30,953 INFO L567 ElimStorePlain]: treesize reduction 4, result has 94.2 percent of original size [2019-10-22 11:22:30,955 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 11:22:30,956 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:90, output treesize:65 [2019-10-22 11:22:31,189 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-22 11:22:31,191 INFO L172 IndexEqualityManager]: detected equality via solver [2019-10-22 11:22:31,193 INFO L375 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 22 [2019-10-22 11:22:31,194 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 11:22:31,232 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:31,233 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 11:22:31,233 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:69, output treesize:30 [2019-10-22 11:22:31,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:31,362 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:22:37,814 WARN L191 SmtUtils]: Spent 6.22 s on a formula simplification that was a NOOP. DAG size: 26 [2019-10-22 11:22:37,814 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:37,815 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 307 treesize of output 289 [2019-10-22 11:22:37,816 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,826 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,834 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,870 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,900 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,937 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,946 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:37,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:37,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,013 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 11:22:38,014 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 289 treesize of output 283 [2019-10-22 11:22:38,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,025 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,054 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,067 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,074 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,081 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,083 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,124 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,135 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,201 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,202 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,208 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,213 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,214 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,215 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:22:38,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 11:22:38,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:22:38,457 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:291) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) 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.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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) [2019-10-22 11:22:38,460 INFO L168 Benchmark]: Toolchain (without parser) took 10244.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 952.3 MB in the beginning and 874.9 MB in the end (delta: 77.4 MB). Peak memory consumption was 223.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:38,460 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:38,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.36 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:38,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:38,462 INFO L168 Benchmark]: Boogie Preprocessor took 33.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:38,463 INFO L168 Benchmark]: RCFGBuilder took 277.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:38,463 INFO L168 Benchmark]: TraceAbstraction took 9511.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.9 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:38,466 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.36 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 138.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -192.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 277.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9511.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.9 MB in the end (delta: 239.0 MB). Peak memory consumption was 239.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...