./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0564e568992a96ba006237c1af458e049de52506 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:24:25,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:25,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:25,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:25,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:25,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:25,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:25,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:25,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:25,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:25,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:25,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:25,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:25,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:25,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:25,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:25,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:25,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:25,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:25,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:25,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:25,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:25,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:25,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:25,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:25,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:25,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:25,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:25,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:25,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:25,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:25,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:25,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:25,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:25,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:25,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:25,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:25,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:25,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:25,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:25,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:25,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:24:25,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:25,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:25,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:25,709 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:25,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:25,710 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:25,710 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:25,710 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:25,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:25,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:25,711 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:25,711 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:25,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:25,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:24:25,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:25,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:25,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:25,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:25,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:25,713 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:24:25,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:25,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:25,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:25,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:25,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:25,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:25,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:25,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:25,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:25,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:25,716 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:25,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:25,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:25,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:25,716 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_b18816fb-cffc-4c95-8675-0f5554905b5e/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0564e568992a96ba006237c1af458e049de52506 [2019-10-22 11:24:25,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:25,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:25,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:25,765 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:25,765 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:25,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2019-10-22 11:24:25,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/data/a627d00ee/1ea7d15c208b4b8babbd49b73765bf68/FLAG172e6fe68 [2019-10-22 11:24:26,200 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:26,201 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2019-10-22 11:24:26,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/data/a627d00ee/1ea7d15c208b4b8babbd49b73765bf68/FLAG172e6fe68 [2019-10-22 11:24:26,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/bin/utaipan/data/a627d00ee/1ea7d15c208b4b8babbd49b73765bf68 [2019-10-22 11:24:26,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:26,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:26,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:26,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:26,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:26,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c71caa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26, skipping insertion in model container [2019-10-22 11:24:26,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,233 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:26,246 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:26,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:26,364 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:26,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:26,441 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:26,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26 WrapperNode [2019-10-22 11:24:26,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:26,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:26,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:26,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:26,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:26,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:26,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:26,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:26,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... [2019-10-22 11:24:26,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:26,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:26,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:26,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:26,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/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 11:24:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:26,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:26,682 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:26,682 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:24:26,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:26 BoogieIcfgContainer [2019-10-22 11:24:26,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:26,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:26,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:26,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:26,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:26" (1/3) ... [2019-10-22 11:24:26,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:26, skipping insertion in model container [2019-10-22 11:24:26,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:26" (2/3) ... [2019-10-22 11:24:26,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab8246e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:26, skipping insertion in model container [2019-10-22 11:24:26,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:26" (3/3) ... [2019-10-22 11:24:26,691 INFO L109 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2019-10-22 11:24:26,699 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:26,706 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 11:24:26,716 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 11:24:26,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:26,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:26,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:26,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:26,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:26,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:26,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:26,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:26,744 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-22 11:24:26,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:24:26,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:26,750 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:24:26,751 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:26,756 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-10-22 11:24:26,763 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:26,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865304097] [2019-10-22 11:24:26,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,764 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:26,877 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 11:24:26,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865304097] [2019-10-22 11:24:26,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:26,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 11:24:26,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402667643] [2019-10-22 11:24:26,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:26,884 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:26,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:26,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:26,895 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-10-22 11:24:26,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:26,940 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2019-10-22 11:24:26,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:26,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-10-22 11:24:26,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:26,949 INFO L225 Difference]: With dead ends: 26 [2019-10-22 11:24:26,950 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:24:26,952 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:24:26,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-10-22 11:24:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 11:24:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-22 11:24:26,981 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2019-10-22 11:24:26,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:26,981 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-22 11:24:26,981 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-22 11:24:26,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:24:26,982 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:26,982 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:24:26,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:26,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:26,983 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-10-22 11:24:26,983 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:26,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098665599] [2019-10-22 11:24:26,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:26,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,004 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 11:24:27,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098665599] [2019-10-22 11:24:27,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:24:27,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127357952] [2019-10-22 11:24:27,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:27,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:27,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:27,007 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2019-10-22 11:24:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,052 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-10-22 11:24:27,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:27,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 11:24:27,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,053 INFO L225 Difference]: With dead ends: 17 [2019-10-22 11:24:27,053 INFO L226 Difference]: Without dead ends: 15 [2019-10-22 11:24:27,054 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:27,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-22 11:24:27,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-10-22 11:24:27,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:24:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-22 11:24:27,058 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2019-10-22 11:24:27,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,058 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-22 11:24:27,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-22 11:24:27,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 11:24:27,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,059 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 11:24:27,059 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,060 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2019-10-22 11:24:27,060 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300877959] [2019-10-22 11:24:27,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,060 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,078 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 11:24:27,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300877959] [2019-10-22 11:24:27,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:27,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-10-22 11:24:27,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184695969] [2019-10-22 11:24:27,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:24:27,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:24:27,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:27,080 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2019-10-22 11:24:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,141 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-10-22 11:24:27,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:24:27,143 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-10-22 11:24:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,143 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:24:27,143 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:24:27,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:24:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:24:27,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 11:24:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 11:24:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-10-22 11:24:27,148 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2019-10-22 11:24:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,148 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-10-22 11:24:27,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:24:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-10-22 11:24:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:24:27,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,149 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:27,149 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash 577431471, now seen corresponding path program 1 times [2019-10-22 11:24:27,150 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798085679] [2019-10-22 11:24:27,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,245 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 11:24:27,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798085679] [2019-10-22 11:24:27,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507511971] [2019-10-22 11:24:27,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/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 11:24:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:24:27,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:27,336 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:27,370 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 11:24:27,371 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-22 11:24:27,371 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 3] total 10 [2019-10-22 11:24:27,371 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048930662] [2019-10-22 11:24:27,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:27,372 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:27,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:24:27,372 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-10-22 11:24:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,435 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-10-22 11:24:27,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:27,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 11:24:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,436 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:24:27,436 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:24:27,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:24:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:24:27,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-10-22 11:24:27,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 11:24:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-22 11:24:27,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2019-10-22 11:24:27,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,439 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-22 11:24:27,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:27,440 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-22 11:24:27,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:24:27,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,440 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-10-22 11:24:27,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:27,641 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash 720506461, now seen corresponding path program 1 times [2019-10-22 11:24:27,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:27,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045973016] [2019-10-22 11:24:27,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:27,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:27,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045973016] [2019-10-22 11:24:27,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673132054] [2019-10-22 11:24:27,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/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 11:24:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:27,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:24:27,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:27,746 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:27,781 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-22 11:24:27,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [3] total 9 [2019-10-22 11:24:27,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457093149] [2019-10-22 11:24:27,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:24:27,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:27,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:24:27,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:24:27,783 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2019-10-22 11:24:27,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:27,833 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-10-22 11:24:27,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:27,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-10-22 11:24:27,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:27,834 INFO L225 Difference]: With dead ends: 12 [2019-10-22 11:24:27,834 INFO L226 Difference]: Without dead ends: 11 [2019-10-22 11:24:27,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:24:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-10-22 11:24:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-10-22 11:24:27,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 11:24:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-10-22 11:24:27,837 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2019-10-22 11:24:27,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:27,837 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-10-22 11:24:27,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:24:27,838 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-10-22 11:24:27,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:24:27,838 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:27,838 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2019-10-22 11:24:28,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:28,041 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:24:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:28,042 INFO L82 PathProgramCache]: Analyzing trace with hash 860863857, now seen corresponding path program 1 times [2019-10-22 11:24:28,042 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:28,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381299443] [2019-10-22 11:24:28,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:28,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:28,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381299443] [2019-10-22 11:24:28,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725725609] [2019-10-22 11:24:28,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18816fb-cffc-4c95-8675-0f5554905b5e/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 11:24:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:28,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:24:28,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:28,116 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:28,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:28,129 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [93124149] [2019-10-22 11:24:28,134 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 11 [2019-10-22 11:24:28,169 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:24:28,169 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:24:28,434 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:24:28,434 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) 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 11:24:28,440 INFO L168 Benchmark]: Toolchain (without parser) took 2220.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 936.9 MB in the beginning and 1.0 GB in the end (delta: -77.1 MB). Peak memory consumption was 63.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:28,440 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:28,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:28,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.27 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:28,442 INFO L168 Benchmark]: Boogie Preprocessor took 17.15 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 11:24:28,442 INFO L168 Benchmark]: RCFGBuilder took 194.44 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:28,443 INFO L168 Benchmark]: TraceAbstraction took 1753.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:28,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 936.9 MB in the beginning and 1.1 GB in the end (delta: -202.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.27 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.15 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 194.44 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1753.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...