./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cc1f38a976dda42d71f86348e088e61d77f90eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:05,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:05,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:05,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:05,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:05,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:05,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:05,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:05,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:05,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:05,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:05,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:05,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:05,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:05,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:05,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:05,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:05,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:05,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:05,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:05,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:05,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:05,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:05,599 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:05,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:05,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:05,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:05,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:05,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:05,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:05,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:05,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:05,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:05,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:05,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:05,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:05,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:05,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:05,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:05,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:05,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:05,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:05,617 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:05,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:05,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:05,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:05,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:05,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:05,619 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:05,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:05,620 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:05,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:05,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:05,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:05,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:05,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:05,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:05,621 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:05,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:05,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:05,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:05,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:05,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:05,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:05,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:05,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:05,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:05,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:05,623 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:05,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:05,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:05,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:05,624 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cc1f38a976dda42d71f86348e088e61d77f90eb [2019-10-22 11:26:05,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:05,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:05,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:05,660 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:05,660 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:05,661 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/../../sv-benchmarks/c/psyco/psyco_security.c [2019-10-22 11:26:05,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/data/048486b32/9631cc11a9044e59b2075bb99d64134c/FLAG29abf6090 [2019-10-22 11:26:06,079 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:06,079 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/sv-benchmarks/c/psyco/psyco_security.c [2019-10-22 11:26:06,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/data/048486b32/9631cc11a9044e59b2075bb99d64134c/FLAG29abf6090 [2019-10-22 11:26:06,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/data/048486b32/9631cc11a9044e59b2075bb99d64134c [2019-10-22 11:26:06,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:06,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:06,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:06,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:06,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:06,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21830578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06, skipping insertion in model container [2019-10-22 11:26:06,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,114 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:06,136 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:06,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:06,355 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:06,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:06,396 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06 WrapperNode [2019-10-22 11:26:06,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:06,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:06,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:06,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:06,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:06,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:06,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:06,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:06,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... [2019-10-22 11:26:06,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:06,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:06,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:06,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:06,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:06,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:06,924 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:06,924 INFO L284 CfgBuilder]: Removed 22 assume(true) statements. [2019-10-22 11:26:06,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:06 BoogieIcfgContainer [2019-10-22 11:26:06,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:06,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:06,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:06,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:06,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:06" (1/3) ... [2019-10-22 11:26:06,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a67c0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:06, skipping insertion in model container [2019-10-22 11:26:06,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:06" (2/3) ... [2019-10-22 11:26:06,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a67c0f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:06, skipping insertion in model container [2019-10-22 11:26:06,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:06" (3/3) ... [2019-10-22 11:26:06,933 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2019-10-22 11:26:06,950 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:06,959 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:06,969 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:06,998 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:06,998 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:06,998 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:06,998 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:06,998 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:06,998 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:06,999 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:06,999 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2019-10-22 11:26:07,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:26:07,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,027 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,034 INFO L82 PathProgramCache]: Analyzing trace with hash 352571364, now seen corresponding path program 1 times [2019-10-22 11:26:07,043 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,044 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612964704] [2019-10-22 11:26:07,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:07,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612964704] [2019-10-22 11:26:07,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:26:07,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606768321] [2019-10-22 11:26:07,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:26:07,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:26:07,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:07,193 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2019-10-22 11:26:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,225 INFO L93 Difference]: Finished difference Result 154 states and 292 transitions. [2019-10-22 11:26:07,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:26:07,227 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 11:26:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,238 INFO L225 Difference]: With dead ends: 154 [2019-10-22 11:26:07,238 INFO L226 Difference]: Without dead ends: 74 [2019-10-22 11:26:07,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:26:07,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-10-22 11:26:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-10-22 11:26:07,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-10-22 11:26:07,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2019-10-22 11:26:07,272 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 9 [2019-10-22 11:26:07,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,272 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2019-10-22 11:26:07,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:26:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2019-10-22 11:26:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:26:07,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,274 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,274 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1422697708, now seen corresponding path program 1 times [2019-10-22 11:26:07,274 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,275 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108669872] [2019-10-22 11:26:07,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:07,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108669872] [2019-10-22 11:26:07,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257016331] [2019-10-22 11:26:07,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,305 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand 3 states. [2019-10-22 11:26:07,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,378 INFO L93 Difference]: Finished difference Result 149 states and 220 transitions. [2019-10-22 11:26:07,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 11:26:07,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,380 INFO L225 Difference]: With dead ends: 149 [2019-10-22 11:26:07,380 INFO L226 Difference]: Without dead ends: 77 [2019-10-22 11:26:07,381 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-10-22 11:26:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2019-10-22 11:26:07,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-10-22 11:26:07,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 112 transitions. [2019-10-22 11:26:07,388 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 112 transitions. Word has length 10 [2019-10-22 11:26:07,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,388 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 112 transitions. [2019-10-22 11:26:07,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,388 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2019-10-22 11:26:07,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:26:07,389 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,389 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,389 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,390 INFO L82 PathProgramCache]: Analyzing trace with hash 658032583, now seen corresponding path program 1 times [2019-10-22 11:26:07,390 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831515058] [2019-10-22 11:26:07,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:07,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831515058] [2019-10-22 11:26:07,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729126488] [2019-10-22 11:26:07,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,425 INFO L87 Difference]: Start difference. First operand 77 states and 112 transitions. Second operand 3 states. [2019-10-22 11:26:07,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,469 INFO L93 Difference]: Finished difference Result 142 states and 209 transitions. [2019-10-22 11:26:07,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-22 11:26:07,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,470 INFO L225 Difference]: With dead ends: 142 [2019-10-22 11:26:07,470 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 11:26:07,471 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 11:26:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 11:26:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 11:26:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 98 transitions. [2019-10-22 11:26:07,476 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 98 transitions. Word has length 15 [2019-10-22 11:26:07,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,477 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 98 transitions. [2019-10-22 11:26:07,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 98 transitions. [2019-10-22 11:26:07,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 11:26:07,478 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,478 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,478 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,478 INFO L82 PathProgramCache]: Analyzing trace with hash 2066489199, now seen corresponding path program 1 times [2019-10-22 11:26:07,478 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199324230] [2019-10-22 11:26:07,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:07,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199324230] [2019-10-22 11:26:07,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,506 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332056644] [2019-10-22 11:26:07,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,507 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,507 INFO L87 Difference]: Start difference. First operand 68 states and 98 transitions. Second operand 3 states. [2019-10-22 11:26:07,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,594 INFO L93 Difference]: Finished difference Result 188 states and 276 transitions. [2019-10-22 11:26:07,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-22 11:26:07,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,595 INFO L225 Difference]: With dead ends: 188 [2019-10-22 11:26:07,595 INFO L226 Difference]: Without dead ends: 118 [2019-10-22 11:26:07,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-10-22 11:26:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104. [2019-10-22 11:26:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-10-22 11:26:07,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2019-10-22 11:26:07,604 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 18 [2019-10-22 11:26:07,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,604 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2019-10-22 11:26:07,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2019-10-22 11:26:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:26:07,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,605 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,605 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,606 INFO L82 PathProgramCache]: Analyzing trace with hash 290326405, now seen corresponding path program 1 times [2019-10-22 11:26:07,606 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,606 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491441914] [2019-10-22 11:26:07,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:07,653 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491441914] [2019-10-22 11:26:07,653 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,653 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625939909] [2019-10-22 11:26:07,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,654 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,654 INFO L87 Difference]: Start difference. First operand 104 states and 149 transitions. Second operand 3 states. [2019-10-22 11:26:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,715 INFO L93 Difference]: Finished difference Result 179 states and 256 transitions. [2019-10-22 11:26:07,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:26:07,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,716 INFO L225 Difference]: With dead ends: 179 [2019-10-22 11:26:07,716 INFO L226 Difference]: Without dead ends: 83 [2019-10-22 11:26:07,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-10-22 11:26:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2019-10-22 11:26:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-10-22 11:26:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 113 transitions. [2019-10-22 11:26:07,728 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 113 transitions. Word has length 19 [2019-10-22 11:26:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,729 INFO L462 AbstractCegarLoop]: Abstraction has 81 states and 113 transitions. [2019-10-22 11:26:07,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 113 transitions. [2019-10-22 11:26:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 11:26:07,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,730 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,730 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1696736468, now seen corresponding path program 1 times [2019-10-22 11:26:07,730 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147276289] [2019-10-22 11:26:07,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:07,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147276289] [2019-10-22 11:26:07,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656602983] [2019-10-22 11:26:07,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,777 INFO L87 Difference]: Start difference. First operand 81 states and 113 transitions. Second operand 3 states. [2019-10-22 11:26:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,814 INFO L93 Difference]: Finished difference Result 130 states and 186 transitions. [2019-10-22 11:26:07,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 11:26:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,816 INFO L225 Difference]: With dead ends: 130 [2019-10-22 11:26:07,816 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 11:26:07,816 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 11:26:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 11:26:07,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:26:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 92 transitions. [2019-10-22 11:26:07,827 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 92 transitions. Word has length 25 [2019-10-22 11:26:07,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,828 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 92 transitions. [2019-10-22 11:26:07,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2019-10-22 11:26:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 11:26:07,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,829 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,829 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1712893632, now seen corresponding path program 1 times [2019-10-22 11:26:07,829 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666464265] [2019-10-22 11:26:07,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:07,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666464265] [2019-10-22 11:26:07,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039479605] [2019-10-22 11:26:07,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,874 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand 3 states. [2019-10-22 11:26:07,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:07,950 INFO L93 Difference]: Finished difference Result 154 states and 224 transitions. [2019-10-22 11:26:07,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:07,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 11:26:07,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:07,952 INFO L225 Difference]: With dead ends: 154 [2019-10-22 11:26:07,952 INFO L226 Difference]: Without dead ends: 107 [2019-10-22 11:26:07,952 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-10-22 11:26:07,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 95. [2019-10-22 11:26:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-10-22 11:26:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2019-10-22 11:26:07,959 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 134 transitions. Word has length 26 [2019-10-22 11:26:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:07,960 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 134 transitions. [2019-10-22 11:26:07,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 134 transitions. [2019-10-22 11:26:07,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:26:07,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:07,961 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:07,961 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:07,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1584038971, now seen corresponding path program 1 times [2019-10-22 11:26:07,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:07,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543172153] [2019-10-22 11:26:07,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:07,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:07,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543172153] [2019-10-22 11:26:07,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:07,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:07,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62765303] [2019-10-22 11:26:07,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:07,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:07,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:07,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:07,987 INFO L87 Difference]: Start difference. First operand 95 states and 134 transitions. Second operand 3 states. [2019-10-22 11:26:08,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:08,026 INFO L93 Difference]: Finished difference Result 162 states and 228 transitions. [2019-10-22 11:26:08,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:08,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:26:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:08,032 INFO L225 Difference]: With dead ends: 162 [2019-10-22 11:26:08,032 INFO L226 Difference]: Without dead ends: 88 [2019-10-22 11:26:08,032 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-10-22 11:26:08,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-10-22 11:26:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:26:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 116 transitions. [2019-10-22 11:26:08,050 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 116 transitions. Word has length 27 [2019-10-22 11:26:08,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:08,051 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 116 transitions. [2019-10-22 11:26:08,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 116 transitions. [2019-10-22 11:26:08,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 11:26:08,051 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:08,052 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:08,052 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:08,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:08,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1447684816, now seen corresponding path program 1 times [2019-10-22 11:26:08,052 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:08,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703924123] [2019-10-22 11:26:08,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,053 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:08,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703924123] [2019-10-22 11:26:08,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:08,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:08,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314216539] [2019-10-22 11:26:08,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:08,082 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:08,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:08,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,082 INFO L87 Difference]: Start difference. First operand 88 states and 116 transitions. Second operand 3 states. [2019-10-22 11:26:08,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:08,114 INFO L93 Difference]: Finished difference Result 135 states and 180 transitions. [2019-10-22 11:26:08,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:08,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-22 11:26:08,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:08,115 INFO L225 Difference]: With dead ends: 135 [2019-10-22 11:26:08,115 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 11:26:08,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 11:26:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-10-22 11:26:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-10-22 11:26:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2019-10-22 11:26:08,126 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 27 [2019-10-22 11:26:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:08,127 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2019-10-22 11:26:08,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2019-10-22 11:26:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:08,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:08,128 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:08,128 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:08,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:08,128 INFO L82 PathProgramCache]: Analyzing trace with hash -573380405, now seen corresponding path program 1 times [2019-10-22 11:26:08,128 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:08,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024370174] [2019-10-22 11:26:08,128 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:08,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024370174] [2019-10-22 11:26:08,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:08,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:08,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878615525] [2019-10-22 11:26:08,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:08,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:08,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:08,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,174 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand 3 states. [2019-10-22 11:26:08,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:08,215 INFO L93 Difference]: Finished difference Result 70 states and 88 transitions. [2019-10-22 11:26:08,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:08,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:26:08,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:08,216 INFO L225 Difference]: With dead ends: 70 [2019-10-22 11:26:08,216 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 11:26:08,217 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 11:26:08,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-10-22 11:26:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-10-22 11:26:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2019-10-22 11:26:08,222 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 28 [2019-10-22 11:26:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:08,222 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2019-10-22 11:26:08,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2019-10-22 11:26:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:26:08,223 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:08,223 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:08,223 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:08,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:08,223 INFO L82 PathProgramCache]: Analyzing trace with hash -583473182, now seen corresponding path program 1 times [2019-10-22 11:26:08,224 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:08,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992009571] [2019-10-22 11:26:08,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:08,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:26:08,271 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992009571] [2019-10-22 11:26:08,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:08,272 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:08,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428504896] [2019-10-22 11:26:08,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:08,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:08,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:08,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,273 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand 3 states. [2019-10-22 11:26:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:08,298 INFO L93 Difference]: Finished difference Result 107 states and 139 transitions. [2019-10-22 11:26:08,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:08,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-22 11:26:08,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:08,300 INFO L225 Difference]: With dead ends: 107 [2019-10-22 11:26:08,300 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:08,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:08,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:08,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-10-22 11:26:08,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:08,302 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:08,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:08,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:08,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:08,399 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 331) no Hoare annotation was computed. [2019-10-22 11:26:08,399 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 382) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 261) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L184(lines 184 199) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L118(lines 118 129) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L366(lines 366 377) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L300(lines 300 315) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 245) no Hoare annotation was computed. [2019-10-22 11:26:08,400 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 113) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 389) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L350(lines 350 361) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L284(lines 284 299) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 229) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 88) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L334(lines 334 345) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 213) no Hoare annotation was computed. [2019-10-22 11:26:08,401 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 72) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 329) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 197) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 56) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L302(lines 302 313) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L170(lines 170 172) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 297) no Hoare annotation was computed. [2019-10-22 11:26:08,402 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 156) no Hoare annotation was computed. [2019-10-22 11:26:08,403 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 385) the Hoare annotation is: (or (and (<= 4 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~this_state~0 3)) (and (<= ULTIMATE.start_main_~this_state~0 0) (= ULTIMATE.start_main_~q~0 0))) [2019-10-22 11:26:08,403 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 385) no Hoare annotation was computed. [2019-10-22 11:26:08,403 INFO L443 ceAbstractionStarter]: For program point L270(lines 270 272) no Hoare annotation was computed. [2019-10-22 11:26:08,404 INFO L443 ceAbstractionStarter]: For program point L138(lines 138 140) no Hoare annotation was computed. [2019-10-22 11:26:08,404 INFO L443 ceAbstractionStarter]: For program point L254(lines 254 256) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L370(lines 370 372) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 240) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 108) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 356) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L222(lines 222 224) no Hoare annotation was computed. [2019-10-22 11:26:08,405 INFO L439 ceAbstractionStarter]: At program point L371(lines 13 390) the Hoare annotation is: false [2019-10-22 11:26:08,405 INFO L443 ceAbstractionStarter]: For program point L338(lines 338 340) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L206(lines 206 208) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L322(lines 322 324) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L190(lines 190 192) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 308) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L290(lines 290 292) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:08,406 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 43) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L446 ceAbstractionStarter]: At program point L13(lines 13 390) the Hoare annotation is: true [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 41) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 95) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 98) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L64(lines 64 79) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L48(lines 48 63) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L164(lines 164 179) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:08,407 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 163) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 93) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L264(lines 264 279) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 147) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 182) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 77) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 263) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L116(lines 116 131) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 61) no Hoare annotation was computed. [2019-10-22 11:26:08,408 INFO L443 ceAbstractionStarter]: For program point L364(lines 364 379) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 247) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L166(lines 166 177) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L100(lines 100 115) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L439 ceAbstractionStarter]: At program point L381(lines 22 385) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~this_state~0 0))) (or (and (<= 4 ULTIMATE.start_main_~q~0) (= ULTIMATE.start_main_~this_state~0 3)) (and (= ULTIMATE.start_main_~q~0 3) (= ULTIMATE.start_main_~this_state~0 2)) (and .cse0 (= 2 ULTIMATE.start_main_~q~0)) (and .cse0 (= ULTIMATE.start_main_~q~0 0)))) [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L348(lines 348 363) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L216(lines 216 231) no Hoare annotation was computed. [2019-10-22 11:26:08,409 INFO L443 ceAbstractionStarter]: For program point L183(lines 183 282) no Hoare annotation was computed. [2019-10-22 11:26:08,410 INFO L443 ceAbstractionStarter]: For program point L150(lines 150 161) no Hoare annotation was computed. [2019-10-22 11:26:08,410 INFO L443 ceAbstractionStarter]: For program point L332(lines 332 347) no Hoare annotation was computed. [2019-10-22 11:26:08,410 INFO L443 ceAbstractionStarter]: For program point L266(lines 266 277) no Hoare annotation was computed. [2019-10-22 11:26:08,410 INFO L443 ceAbstractionStarter]: For program point L200(lines 200 215) no Hoare annotation was computed. [2019-10-22 11:26:08,410 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 145) no Hoare annotation was computed. [2019-10-22 11:26:08,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:08 BoogieIcfgContainer [2019-10-22 11:26:08,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:08,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:08,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:08,430 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:08,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:06" (3/4) ... [2019-10-22 11:26:08,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:08,450 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:26:08,450 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:26:08,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3aa2c77a-6b20-46ac-a20a-4a753ed0b4da/bin/utaipan/witness.graphml [2019-10-22 11:26:08,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:08,487 INFO L168 Benchmark]: Toolchain (without parser) took 2385.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 922.1 MB in the end (delta: 27.7 MB). Peak memory consumption was 155.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:08,488 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:08,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:08,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:08,489 INFO L168 Benchmark]: Boogie Preprocessor took 37.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:08,489 INFO L168 Benchmark]: RCFGBuilder took 451.71 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:08,490 INFO L168 Benchmark]: TraceAbstraction took 1503.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.1 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:08,490 INFO L168 Benchmark]: Witness Printer took 54.78 ms. Allocated memory is still 1.2 GB. Free memory is still 922.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:08,492 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.19 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 451.71 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1503.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.1 MB in the end (delta: 157.7 MB). Peak memory consumption was 157.7 MB. Max. memory is 11.5 GB. * Witness Printer took 54.78 ms. Allocated memory is still 1.2 GB. Free memory is still 922.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 389]: 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: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((4 <= q && this_state == 3) || (q == 3 && this_state == 2)) || (this_state <= 0 && 2 == q)) || (this_state <= 0 && q == 0) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (4 <= q && this_state == 3) || (this_state <= 0 && q == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 963 SDtfs, 337 SDslu, 415 SDs, 0 SdLazy, 217 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 46 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 8086 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 55/55 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...