./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/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 3b05d579dd12f755368a6bf22b0fd6149bd3ba2b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:39:09,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:39:09,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:39:09,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:39:09,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:39:09,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:39:09,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:39:09,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:39:09,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:39:09,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:39:09,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:39:09,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:39:09,837 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:39:09,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:39:09,839 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:39:09,839 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:39:09,840 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:39:09,842 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:39:09,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:39:09,845 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:39:09,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:39:09,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:39:09,848 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:39:09,849 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:39:09,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:39:09,849 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:39:09,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:39:09,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:39:09,852 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:39:09,852 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:39:09,853 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:39:09,853 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:39:09,853 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:39:09,854 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:39:09,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:39:09,855 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:39:09,855 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:39:09,866 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:39:09,866 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:39:09,867 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:39:09,867 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:39:09,868 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:39:09,868 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:39:09,868 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:39:09,868 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:39:09,868 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:39:09,868 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:39:09,869 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:39:09,869 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:39:09,869 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:39:09,870 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:39:09,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:39:09,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:39:09,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:39:09,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:39:09,871 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:39:09,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:39:09,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:39:09,872 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:39:09,872 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:39:09,872 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:39:09,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:39:09,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:39:09,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:39:09,873 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:39:09,873 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:39:09,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:39:09,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:39:09,874 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:39:09,874 INFO L133 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_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/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 -> 3b05d579dd12f755368a6bf22b0fd6149bd3ba2b [2018-11-18 16:39:09,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:39:09,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:39:09,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:39:09,913 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:39:09,913 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:39:09,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-11-18 16:39:09,957 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/data/f89f0c7ab/b18366ba8bd1443582c37e9cf9a886b4/FLAG147745cce [2018-11-18 16:39:10,353 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:39:10,353 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/sv-benchmarks/c/eca-rers2012/Problem01_label28_true-unreach-call_false-termination.c [2018-11-18 16:39:10,363 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/data/f89f0c7ab/b18366ba8bd1443582c37e9cf9a886b4/FLAG147745cce [2018-11-18 16:39:10,721 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/data/f89f0c7ab/b18366ba8bd1443582c37e9cf9a886b4 [2018-11-18 16:39:10,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:39:10,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:39:10,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:39:10,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:39:10,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:39:10,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:39:10" (1/1) ... [2018-11-18 16:39:10,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:10, skipping insertion in model container [2018-11-18 16:39:10,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:39:10" (1/1) ... [2018-11-18 16:39:10,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:39:10,777 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:39:11,054 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:39:11,058 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:39:11,122 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:39:11,133 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:39:11,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11 WrapperNode [2018-11-18 16:39:11,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:39:11,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:39:11,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:39:11,134 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:39:11,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:39:11,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:39:11,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:39:11,228 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:39:11,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... [2018-11-18 16:39:11,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:39:11,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:39:11,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:39:11,288 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:39:11,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/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 [2018-11-18 16:39:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 16:39:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:39:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 16:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 16:39:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:39:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:39:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:39:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:39:12,332 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:39:12,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:39:12 BoogieIcfgContainer [2018-11-18 16:39:12,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:39:12,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:39:12,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:39:12,337 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:39:12,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:39:10" (1/3) ... [2018-11-18 16:39:12,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184bc118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:39:12, skipping insertion in model container [2018-11-18 16:39:12,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:39:11" (2/3) ... [2018-11-18 16:39:12,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184bc118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:39:12, skipping insertion in model container [2018-11-18 16:39:12,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:39:12" (3/3) ... [2018-11-18 16:39:12,340 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label28_true-unreach-call_false-termination.c [2018-11-18 16:39:12,350 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:39:12,358 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:39:12,373 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:39:12,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:39:12,404 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:39:12,404 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:39:12,404 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:39:12,404 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:39:12,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:39:12,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:39:12,405 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:39:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-11-18 16:39:12,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-18 16:39:12,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:12,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:12,438 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:12,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:12,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1379004888, now seen corresponding path program 1 times [2018-11-18 16:39:12,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:12,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:12,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:12,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:12,492 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:39:12,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:39:12,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:39:12,832 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:12,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:39:12,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:39:12,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:39:12,850 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 4 states. [2018-11-18 16:39:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:13,675 INFO L93 Difference]: Finished difference Result 702 states and 1227 transitions. [2018-11-18 16:39:13,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:39:13,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2018-11-18 16:39:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:13,691 INFO L225 Difference]: With dead ends: 702 [2018-11-18 16:39:13,691 INFO L226 Difference]: Without dead ends: 488 [2018-11-18 16:39:13,696 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:39:13,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-11-18 16:39:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 340. [2018-11-18 16:39:13,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-11-18 16:39:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 565 transitions. [2018-11-18 16:39:13,752 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 565 transitions. Word has length 100 [2018-11-18 16:39:13,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:13,752 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 565 transitions. [2018-11-18 16:39:13,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:39:13,753 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 565 transitions. [2018-11-18 16:39:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-18 16:39:13,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:13,757 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:13,758 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:13,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:13,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2021408823, now seen corresponding path program 1 times [2018-11-18 16:39:13,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:13,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:13,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:13,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:13,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:39:13,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:39:13,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:39:13,863 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:13,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:39:13,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:39:13,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:39:13,865 INFO L87 Difference]: Start difference. First operand 340 states and 565 transitions. Second operand 6 states. [2018-11-18 16:39:14,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:14,533 INFO L93 Difference]: Finished difference Result 1070 states and 1865 transitions. [2018-11-18 16:39:14,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:39:14,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-11-18 16:39:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:14,542 INFO L225 Difference]: With dead ends: 1070 [2018-11-18 16:39:14,543 INFO L226 Difference]: Without dead ends: 736 [2018-11-18 16:39:14,545 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:39:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2018-11-18 16:39:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 719. [2018-11-18 16:39:14,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2018-11-18 16:39:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1163 transitions. [2018-11-18 16:39:14,585 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1163 transitions. Word has length 111 [2018-11-18 16:39:14,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:14,585 INFO L480 AbstractCegarLoop]: Abstraction has 719 states and 1163 transitions. [2018-11-18 16:39:14,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:39:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1163 transitions. [2018-11-18 16:39:14,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-18 16:39:14,589 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:14,590 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:14,590 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:14,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:14,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1410703731, now seen corresponding path program 1 times [2018-11-18 16:39:14,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:14,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:14,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:14,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:14,592 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:14,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:39:14,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:39:14,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:39:14,692 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:14,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:39:14,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:39:14,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:39:14,693 INFO L87 Difference]: Start difference. First operand 719 states and 1163 transitions. Second operand 6 states. [2018-11-18 16:39:15,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:15,456 INFO L93 Difference]: Finished difference Result 2165 states and 3625 transitions. [2018-11-18 16:39:15,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:39:15,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-18 16:39:15,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:15,465 INFO L225 Difference]: With dead ends: 2165 [2018-11-18 16:39:15,466 INFO L226 Difference]: Without dead ends: 1452 [2018-11-18 16:39:15,469 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:39:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2018-11-18 16:39:15,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1436. [2018-11-18 16:39:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-11-18 16:39:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2226 transitions. [2018-11-18 16:39:15,510 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2226 transitions. Word has length 124 [2018-11-18 16:39:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:15,510 INFO L480 AbstractCegarLoop]: Abstraction has 1436 states and 2226 transitions. [2018-11-18 16:39:15,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:39:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2226 transitions. [2018-11-18 16:39:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-18 16:39:15,514 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:15,514 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:15,514 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:15,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:15,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1532774618, now seen corresponding path program 1 times [2018-11-18 16:39:15,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:15,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:15,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:15,516 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:15,606 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:39:15,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:39:15,607 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:39:15,608 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-18 16:39:15,609 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 16:39:15,645 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:39:15,646 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:39:16,243 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:39:16,244 INFO L272 AbstractInterpreter]: Visited 104 different actions 201 times. Merged at 4 different actions 4 times. Never widened. Performed 2872 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2872 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 16:39:16,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:16,265 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:39:16,591 INFO L227 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 81.59% of their original sizes. [2018-11-18 16:39:16,591 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:39:16,653 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-18 16:39:16,653 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:39:16,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:39:16,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 16:39:16,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:16,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 16:39:16,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 16:39:16,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:39:16,656 INFO L87 Difference]: Start difference. First operand 1436 states and 2226 transitions. Second operand 10 states. [2018-11-18 16:39:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:21,530 INFO L93 Difference]: Finished difference Result 4980 states and 7818 transitions. [2018-11-18 16:39:21,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 16:39:21,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 136 [2018-11-18 16:39:21,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:21,545 INFO L225 Difference]: With dead ends: 4980 [2018-11-18 16:39:21,545 INFO L226 Difference]: Without dead ends: 3550 [2018-11-18 16:39:21,554 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 145 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2018-11-18 16:39:21,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2018-11-18 16:39:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3500. [2018-11-18 16:39:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3500 states. [2018-11-18 16:39:21,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4511 transitions. [2018-11-18 16:39:21,643 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4511 transitions. Word has length 136 [2018-11-18 16:39:21,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:21,643 INFO L480 AbstractCegarLoop]: Abstraction has 3500 states and 4511 transitions. [2018-11-18 16:39:21,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 16:39:21,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4511 transitions. [2018-11-18 16:39:21,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-18 16:39:21,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:21,649 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:21,649 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:21,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:21,649 INFO L82 PathProgramCache]: Analyzing trace with hash -485749119, now seen corresponding path program 1 times [2018-11-18 16:39:21,650 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:21,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:21,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:21,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:21,651 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-18 16:39:21,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:39:21,783 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:39:21,784 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-11-18 16:39:21,784 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 16:39:21,788 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:39:21,788 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:39:21,997 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:39:21,997 INFO L272 AbstractInterpreter]: Visited 105 different actions 204 times. Merged at 5 different actions 5 times. Never widened. Performed 2767 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2767 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-18 16:39:22,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:22,002 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:39:22,213 INFO L227 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 81.57% of their original sizes. [2018-11-18 16:39:22,214 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:39:22,266 INFO L415 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-11-18 16:39:22,266 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:39:22,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:39:22,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-18 16:39:22,266 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:22,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 16:39:22,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 16:39:22,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 16:39:22,267 INFO L87 Difference]: Start difference. First operand 3500 states and 4511 transitions. Second operand 10 states. [2018-11-18 16:39:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:25,561 INFO L93 Difference]: Finished difference Result 6999 states and 9083 transitions. [2018-11-18 16:39:25,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 16:39:25,561 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2018-11-18 16:39:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:25,575 INFO L225 Difference]: With dead ends: 6999 [2018-11-18 16:39:25,575 INFO L226 Difference]: Without dead ends: 3641 [2018-11-18 16:39:25,584 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 16:39:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2018-11-18 16:39:25,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3638. [2018-11-18 16:39:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3638 states. [2018-11-18 16:39:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3638 states to 3638 states and 4665 transitions. [2018-11-18 16:39:25,739 INFO L78 Accepts]: Start accepts. Automaton has 3638 states and 4665 transitions. Word has length 149 [2018-11-18 16:39:25,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:25,740 INFO L480 AbstractCegarLoop]: Abstraction has 3638 states and 4665 transitions. [2018-11-18 16:39:25,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 16:39:25,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3638 states and 4665 transitions. [2018-11-18 16:39:25,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-18 16:39:25,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:25,746 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:25,747 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:25,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:25,747 INFO L82 PathProgramCache]: Analyzing trace with hash -855328722, now seen corresponding path program 1 times [2018-11-18 16:39:25,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:25,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:25,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:25,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:25,748 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-11-18 16:39:25,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:39:25,823 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:39:25,824 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-11-18 16:39:25,824 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 16:39:25,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:39:25,828 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:39:26,003 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 16:39:26,003 INFO L272 AbstractInterpreter]: Visited 106 different actions 314 times. Merged at 7 different actions 18 times. Never widened. Performed 4404 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4404 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 4 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 16:39:26,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:26,005 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 16:39:26,167 INFO L227 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 83.22% of their original sizes. [2018-11-18 16:39:26,168 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 16:39:26,221 INFO L415 sIntCurrentIteration]: We unified 160 AI predicates to 160 [2018-11-18 16:39:26,221 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 16:39:26,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 16:39:26,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2018-11-18 16:39:26,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:39:26,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:39:26,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:39:26,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:39:26,222 INFO L87 Difference]: Start difference. First operand 3638 states and 4665 transitions. Second operand 9 states. [2018-11-18 16:39:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:28,676 INFO L93 Difference]: Finished difference Result 8111 states and 10642 transitions. [2018-11-18 16:39:28,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 16:39:28,676 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2018-11-18 16:39:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:28,692 INFO L225 Difference]: With dead ends: 8111 [2018-11-18 16:39:28,692 INFO L226 Difference]: Without dead ends: 4753 [2018-11-18 16:39:28,701 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 167 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 16:39:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4753 states. [2018-11-18 16:39:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4753 to 4691. [2018-11-18 16:39:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4691 states. [2018-11-18 16:39:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4691 states to 4691 states and 5942 transitions. [2018-11-18 16:39:28,789 INFO L78 Accepts]: Start accepts. Automaton has 4691 states and 5942 transitions. Word has length 161 [2018-11-18 16:39:28,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:28,789 INFO L480 AbstractCegarLoop]: Abstraction has 4691 states and 5942 transitions. [2018-11-18 16:39:28,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:39:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4691 states and 5942 transitions. [2018-11-18 16:39:28,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-11-18 16:39:28,796 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:39:28,797 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:39:28,797 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:39:28,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:28,797 INFO L82 PathProgramCache]: Analyzing trace with hash 41477585, now seen corresponding path program 1 times [2018-11-18 16:39:28,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:39:28,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:28,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:28,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:39:28,798 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:39:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 16:39:28,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:39:28,896 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 16:39:28,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-11-18 16:39:28,896 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [437], [439], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-11-18 16:39:28,899 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 16:39:28,899 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 16:39:29,331 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 16:39:29,331 INFO L272 AbstractInterpreter]: Visited 108 different actions 537 times. Merged at 10 different actions 44 times. Never widened. Performed 8008 root evaluator evaluations with a maximum evaluation depth of 3. Performed 8008 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 12 fixpoints after 2 different actions. Largest state had 42 variables. [2018-11-18 16:39:29,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:39:29,333 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 16:39:29,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 16:39:29,333 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 16:39:29,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:39:29,340 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 16:39:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:39:29,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:39:29,516 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-18 16:39:29,517 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 16:39:29,616 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-18 16:39:29,633 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 16:39:29,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-11-18 16:39:29,634 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 16:39:29,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 16:39:29,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 16:39:29,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:39:29,635 INFO L87 Difference]: Start difference. First operand 4691 states and 5942 transitions. Second operand 8 states. [2018-11-18 16:39:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:39:31,459 INFO L93 Difference]: Finished difference Result 12781 states and 17043 transitions. [2018-11-18 16:39:31,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 16:39:31,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2018-11-18 16:39:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:39:31,461 INFO L225 Difference]: With dead ends: 12781 [2018-11-18 16:39:31,461 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:39:31,500 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-11-18 16:39:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:39:31,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:39:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:39:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:39:31,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-11-18 16:39:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:39:31,502 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:39:31,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 16:39:31,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:39:31,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:39:31,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:39:31,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,855 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 119 [2018-11-18 16:39:31,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 16:39:31,960 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 86 [2018-11-18 16:39:33,036 WARN L180 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 78 [2018-11-18 16:39:33,205 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 52 [2018-11-18 16:39:33,338 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 55 [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= |old(~a16~0)| ~a16~0)) [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,340 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,341 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-18 16:39:33,342 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-18 16:39:33,343 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-18 16:39:33,344 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-18 16:39:33,345 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,346 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,347 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,348 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 455) no Hoare annotation was computed. [2018-11-18 16:39:33,349 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse19 (= ~a17~0 1)) (.cse20 (= ~a21~0 1)) (.cse13 (= ~a20~0 1)) (.cse21 (= 1 |old(~a20~0)|)) (.cse15 (= ~a7~0 |old(~a7~0)|)) (.cse16 (= |old(~a8~0)| ~a8~0)) (.cse14 (= |old(~a16~0)| ~a16~0))) (let ((.cse1 (and .cse15 .cse16 .cse14)) (.cse9 (= 13 |old(~a8~0)|)) (.cse10 (and (= |old(~a7~0)| |old(~a20~0)|) .cse21)) (.cse0 (= 6 |old(~a16~0)|)) (.cse17 (and .cse19 .cse20 .cse13)) (.cse12 (not .cse21)) (.cse2 (not (= 1 |old(~a21~0)|))) (.cse4 (= 0 |old(~a16~0)|)) (.cse5 (not (= 8 ~a12~0))) (.cse6 (= |calculate_output_#in~input| 0)) (.cse7 (= 0 |old(~a8~0)|)) (.cse3 (and .cse19 .cse20)) (.cse8 (not (= 1 |old(~a17~0)|))) (.cse18 (< 13 |old(~a8~0)|)) (.cse11 (not (= 1 |old(~a7~0)|)))) (and (or .cse0 .cse1) (or .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse2 .cse9 .cse4 .cse3 .cse5 .cse6 .cse7 .cse10 .cse8) (or .cse1 .cse9 .cse10) (or .cse11 (not (= ~a20~0 ~a7~0)) .cse10) (or .cse2 .cse12 .cse13 .cse4 .cse5 .cse6 .cse7 .cse10 .cse8) (or .cse2 (and .cse14 .cse15 .cse16) .cse12 .cse5 .cse6 .cse10 .cse8) (or .cse0 .cse2 .cse12 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse2 .cse17 .cse18 .cse12 .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse6 (or .cse13 (= ~a20~0 0)) (or (not (= 0 |old(~a7~0)|)) .cse2 (not (= 15 |old(~a8~0)|)) (not (= 0 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) .cse5 .cse8)) (or .cse2 .cse18 .cse4 .cse5 .cse11 .cse6 .cse7 .cse3 .cse8) (or .cse18 (and (= 1 ~a7~0) .cse16 .cse14) .cse11)))) [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-18 16:39:33,350 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,351 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,352 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a8~0 15) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= ~a16~0 5)) [2018-11-18 16:39:33,353 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a17~0 1) (= ~a21~0 1) (= ~a7~0 |old(~a7~0)|) (= |old(~a8~0)| ~a8~0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-18 16:39:33,353 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0))))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (and (<= ~a8~0 13) (= 1 ~a7~0)) (not (= 5 |old(~a16~0)|)) (and (not (= main_~input~0 0)) (= ~a17~0 1) .cse0 (= ~a21~0 1) (= ~a20~0 1)) (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)))) [2018-11-18 16:39:33,353 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-18 16:39:33,354 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-18 16:39:33,354 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-11-18 16:39:33,354 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (let ((.cse0 (or (not (= 1 ~a20~0)) (not (= ~a20~0 ~a7~0))))) (or (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0)) (not (= ~a16~0 6)) (not (= 1 |old(~a20~0)|)) (not (= 5 |old(~a16~0)|)) (and .cse0 (= ~a17~0 1) (= ~a20~0 1) (= ~a21~0 1)) (and (<= ~a8~0 13) (= 1 ~a7~0)) (and .cse0 (not (= ~a8~0 13))) (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 15 |old(~a8~0)|)))) [2018-11-18 16:39:33,354 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-11-18 16:39:33,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:39:33 BoogieIcfgContainer [2018-11-18 16:39:33,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:39:33,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:39:33,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:39:33,367 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:39:33,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:39:12" (3/4) ... [2018-11-18 16:39:33,371 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:39:33,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:39:33,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 16:39:33,375 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:39:33,385 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 16:39:33,386 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 16:39:33,407 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == \old(a21)) || !(8 == a12)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((!(1 == a20) || !(a20 == a7)) && a17 == 1) && a20 == 1) && a21 == 1)) || (a8 <= 13 && 1 == a7)) || ((!(1 == a20) || !(a20 == a7)) && !(a8 == 13))) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8)) [2018-11-18 16:39:33,474 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ae10de11-45db-4b41-ab65-8cd6072feaf5/bin-2019/utaipan/witness.graphml [2018-11-18 16:39:33,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:39:33,475 INFO L168 Benchmark]: Toolchain (without parser) took 22751.45 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 1.0 GB). Free memory was 953.9 MB in the beginning and 1.5 GB in the end (delta: -565.4 MB). Peak memory consumption was 454.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,476 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:39:33,476 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.32 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 916.3 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,476 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 916.3 MB in the beginning and 1.1 GB in the end (delta: -216.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,476 INFO L168 Benchmark]: Boogie Preprocessor took 59.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,477 INFO L168 Benchmark]: RCFGBuilder took 1045.25 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,477 INFO L168 Benchmark]: TraceAbstraction took 21032.80 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 882.4 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -514.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,477 INFO L168 Benchmark]: Witness Printer took 107.24 ms. Allocated memory is still 2.0 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:39:33,479 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 409.32 ms. Allocated memory is still 1.0 GB. Free memory was 953.9 MB in the beginning and 916.3 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 916.3 MB in the beginning and 1.1 GB in the end (delta: -216.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.70 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1045.25 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: 101.7 MB). Peak memory consumption was 101.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21032.80 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 882.4 MB). Free memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: -514.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 11.5 GB. * Witness Printer took 107.24 ms. Allocated memory is still 2.0 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 455]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a21)) || !(8 == a12)) || !(a16 == 6)) || !(1 == \old(a20))) || !(5 == \old(a16))) || ((((!(1 == a20) || !(a20 == a7)) && a17 == 1) && a20 == 1) && a21 == 1)) || (a8 <= 13 && 1 == a7)) || ((!(1 == a20) || !(a20 == a7)) && !(a8 == 13))) || !(0 == \old(a7))) || !(1 == \old(a17))) || !(15 == \old(a8)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 20.9s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 14.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 993 SDtfs, 6694 SDslu, 1803 SDs, 0 SdLazy, 8606 SolverSat, 1973 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 901 GetRequests, 803 SyntacticMatches, 4 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4691occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9961245388026116 AbsIntWeakeningRatio, 0.27765237020316025 AbsIntAvgWeakeningVarsNumRemoved, 27.41309255079007 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 296 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 147 PreInvPairs, 283 NumberOfFragments, 602 HoareAnnotationTreeSize, 147 FomulaSimplifications, 13244 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6746 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1143 NumberOfCodeBlocks, 1143 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1315 ConstructedInterpolants, 0 QuantifiedInterpolants, 354119 SizeOfPredicates, 1 NumberOfNonLiveVariables, 619 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 758/831 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...