./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:05:01,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:05:01,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:05:01,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:05:01,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:05:01,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:05:01,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:05:01,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:05:01,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:05:01,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:05:01,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:05:01,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:05:01,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:05:01,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:05:01,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:05:01,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:05:01,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:05:01,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:05:01,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:05:01,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:05:01,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:05:01,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:05:01,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:05:01,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:05:01,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:05:01,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:05:01,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:05:01,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:05:01,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:05:01,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:05:01,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:05:01,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:05:01,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:05:01,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:05:01,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:05:01,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:05:01,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:05:01,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:05:01,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:05:01,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:05:01,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:05:01,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-15 22:05:01,979 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:05:01,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:05:01,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:05:01,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:05:01,981 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:05:01,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:05:01,982 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:05:01,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:05:01,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:05:01,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:05:01,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:05:01,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:05:01,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:05:01,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:05:01,984 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 22:05:01,984 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:05:01,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:05:01,984 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:05:01,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:05:01,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:05:01,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:05:01,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:05:01,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:05:01,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:05:01,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:05:01,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:05:01,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:05:01,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:05:01,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:05:01,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:05:01,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 [2019-11-15 22:05:02,018 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:05:02,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:05:02,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:05:02,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:05:02,033 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:05:02,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/../../sv-benchmarks/c/recursive/recHanoi02-2.c [2019-11-15 22:05:02,091 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/data/7657b03fc/b38d4be1f8394f179aeb7998f3a5f973/FLAG41b2b2741 [2019-11-15 22:05:02,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:05:02,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/sv-benchmarks/c/recursive/recHanoi02-2.c [2019-11-15 22:05:02,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/data/7657b03fc/b38d4be1f8394f179aeb7998f3a5f973/FLAG41b2b2741 [2019-11-15 22:05:02,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/data/7657b03fc/b38d4be1f8394f179aeb7998f3a5f973 [2019-11-15 22:05:02,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:05:02,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:05:02,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:05:02,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:05:02,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:05:02,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182b198d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02, skipping insertion in model container [2019-11-15 22:05:02,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,565 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:05:02,584 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:05:02,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:05:02,833 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:05:02,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:05:02,862 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:05:02,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02 WrapperNode [2019-11-15 22:05:02,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:05:02,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:05:02,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:05:02,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:05:02,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:05:02,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:05:02,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:05:02,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:05:02,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... [2019-11-15 22:05:02,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:05:02,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:05:02,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:05:02,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:05:02,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:05:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-11-15 22:05:02,990 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-11-15 22:05:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:05:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:05:03,348 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:05:03,348 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-15 22:05:03,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:05:03 BoogieIcfgContainer [2019-11-15 22:05:03,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:05:03,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:05:03,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:05:03,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:05:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:05:02" (1/3) ... [2019-11-15 22:05:03,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61602d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:05:03, skipping insertion in model container [2019-11-15 22:05:03,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:05:02" (2/3) ... [2019-11-15 22:05:03,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61602d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:05:03, skipping insertion in model container [2019-11-15 22:05:03,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:05:03" (3/3) ... [2019-11-15 22:05:03,358 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2019-11-15 22:05:03,382 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:05:03,389 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 22:05:03,401 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 22:05:03,430 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:05:03,430 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:05:03,431 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:05:03,431 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:05:03,432 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:05:03,432 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:05:03,432 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:05:03,433 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:05:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-15 22:05:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 22:05:03,457 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:03,458 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:05:03,460 INFO L410 AbstractCegarLoop]: === Iteration 1 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:03,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:03,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1513948958, now seen corresponding path program 1 times [2019-11-15 22:05:03,475 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:03,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645773874] [2019-11-15 22:05:03,475 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,476 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:03,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645773874] [2019-11-15 22:05:03,645 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:05:03,645 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:05:03,645 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592527763] [2019-11-15 22:05:03,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:05:03,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:03,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:05:03,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:05:03,663 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2019-11-15 22:05:03,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:03,755 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-11-15 22:05:03,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:05:03,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-15 22:05:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:03,765 INFO L225 Difference]: With dead ends: 33 [2019-11-15 22:05:03,765 INFO L226 Difference]: Without dead ends: 20 [2019-11-15 22:05:03,767 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:05:03,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-15 22:05:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-15 22:05:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-15 22:05:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-15 22:05:03,799 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2019-11-15 22:05:03,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:03,799 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-15 22:05:03,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:05:03,800 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-15 22:05:03,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 22:05:03,800 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:03,800 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:05:03,801 INFO L410 AbstractCegarLoop]: === Iteration 2 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:03,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:03,801 INFO L82 PathProgramCache]: Analyzing trace with hash -312222520, now seen corresponding path program 1 times [2019-11-15 22:05:03,802 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:03,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755923379] [2019-11-15 22:05:03,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:03,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755923379] [2019-11-15 22:05:03,843 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:05:03,844 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:05:03,844 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960384804] [2019-11-15 22:05:03,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:05:03,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:03,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:05:03,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:05:03,846 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 5 states. [2019-11-15 22:05:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:03,907 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2019-11-15 22:05:03,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:05:03,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-15 22:05:03,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:03,911 INFO L225 Difference]: With dead ends: 39 [2019-11-15 22:05:03,911 INFO L226 Difference]: Without dead ends: 36 [2019-11-15 22:05:03,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:05:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-15 22:05:03,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-11-15 22:05:03,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-15 22:05:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-11-15 22:05:03,933 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 7 [2019-11-15 22:05:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:03,933 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-11-15 22:05:03,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:05:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-11-15 22:05:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 22:05:03,935 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:03,936 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2019-11-15 22:05:03,938 INFO L410 AbstractCegarLoop]: === Iteration 3 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:03,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:03,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1144431293, now seen corresponding path program 1 times [2019-11-15 22:05:03,939 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:03,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056140140] [2019-11-15 22:05:03,941 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:03,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:04,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056140140] [2019-11-15 22:05:04,027 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025732591] [2019-11-15 22:05:04,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:04,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 22:05:04,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:04,097 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:04,097 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-11-15 22:05:04,098 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857594634] [2019-11-15 22:05:04,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:05:04,098 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:04,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:05:04,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:05:04,099 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 7 states. [2019-11-15 22:05:04,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:04,231 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2019-11-15 22:05:04,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 22:05:04,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-11-15 22:05:04,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:04,234 INFO L225 Difference]: With dead ends: 55 [2019-11-15 22:05:04,234 INFO L226 Difference]: Without dead ends: 54 [2019-11-15 22:05:04,234 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:05:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-15 22:05:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-11-15 22:05:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-15 22:05:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2019-11-15 22:05:04,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 12 [2019-11-15 22:05:04,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:04,253 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2019-11-15 22:05:04,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:05:04,253 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2019-11-15 22:05:04,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-15 22:05:04,254 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:04,254 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:05:04,458 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:04,462 INFO L410 AbstractCegarLoop]: === Iteration 4 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:04,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash -287349001, now seen corresponding path program 1 times [2019-11-15 22:05:04,462 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:04,462 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327621970] [2019-11-15 22:05:04,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:04,463 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:04,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:05:04,514 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327621970] [2019-11-15 22:05:04,514 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:05:04,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 22:05:04,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039639678] [2019-11-15 22:05:04,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:05:04,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:04,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:05:04,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:05:04,516 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 4 states. [2019-11-15 22:05:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:04,571 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2019-11-15 22:05:04,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:05:04,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-15 22:05:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:04,573 INFO L225 Difference]: With dead ends: 65 [2019-11-15 22:05:04,573 INFO L226 Difference]: Without dead ends: 54 [2019-11-15 22:05:04,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:05:04,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-15 22:05:04,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2019-11-15 22:05:04,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 22:05:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-11-15 22:05:04,584 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 14 [2019-11-15 22:05:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:04,584 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-11-15 22:05:04,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:05:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2019-11-15 22:05:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 22:05:04,586 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:04,586 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1] [2019-11-15 22:05:04,586 INFO L410 AbstractCegarLoop]: === Iteration 5 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:04,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:04,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1656222120, now seen corresponding path program 2 times [2019-11-15 22:05:04,587 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:04,587 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939535241] [2019-11-15 22:05:04,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:04,588 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:04,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:04,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939535241] [2019-11-15 22:05:04,671 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015169289] [2019-11-15 22:05:04,672 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:04,709 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:05:04,709 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:04,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 22:05:04,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:04,728 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:04,728 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-11-15 22:05:04,729 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040070592] [2019-11-15 22:05:04,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 22:05:04,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:04,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 22:05:04,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:05:04,733 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 9 states. [2019-11-15 22:05:04,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:04,885 INFO L93 Difference]: Finished difference Result 86 states and 89 transitions. [2019-11-15 22:05:04,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 22:05:04,886 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-11-15 22:05:04,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:04,887 INFO L225 Difference]: With dead ends: 86 [2019-11-15 22:05:04,887 INFO L226 Difference]: Without dead ends: 85 [2019-11-15 22:05:04,888 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:05:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-11-15 22:05:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 73. [2019-11-15 22:05:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-15 22:05:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2019-11-15 22:05:04,899 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 17 [2019-11-15 22:05:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:04,899 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2019-11-15 22:05:04,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 22:05:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2019-11-15 22:05:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 22:05:04,900 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:04,900 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1] [2019-11-15 22:05:05,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:05,105 INFO L410 AbstractCegarLoop]: === Iteration 6 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash 438260835, now seen corresponding path program 3 times [2019-11-15 22:05:05,107 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:05,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357366731] [2019-11-15 22:05:05,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:05,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:05,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:05,238 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:05,238 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357366731] [2019-11-15 22:05:05,238 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542230661] [2019-11-15 22:05:05,238 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:05,270 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 22:05:05,270 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:05,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 22:05:05,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:05,290 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:05,291 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2019-11-15 22:05:05,291 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480813955] [2019-11-15 22:05:05,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 22:05:05,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:05,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 22:05:05,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:05:05,301 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 11 states. [2019-11-15 22:05:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:05,511 INFO L93 Difference]: Finished difference Result 109 states and 113 transitions. [2019-11-15 22:05:05,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 22:05:05,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2019-11-15 22:05:05,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:05,518 INFO L225 Difference]: With dead ends: 109 [2019-11-15 22:05:05,518 INFO L226 Difference]: Without dead ends: 108 [2019-11-15 22:05:05,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-11-15 22:05:05,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-15 22:05:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 92. [2019-11-15 22:05:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-15 22:05:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 112 transitions. [2019-11-15 22:05:05,538 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 112 transitions. Word has length 22 [2019-11-15 22:05:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:05,539 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 112 transitions. [2019-11-15 22:05:05,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 22:05:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 112 transitions. [2019-11-15 22:05:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 22:05:05,541 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:05,542 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2019-11-15 22:05:05,745 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:05,745 INFO L410 AbstractCegarLoop]: === Iteration 7 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:05,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:05,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1696558728, now seen corresponding path program 4 times [2019-11-15 22:05:05,746 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:05,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716117515] [2019-11-15 22:05:05,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:05,746 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:05,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:05,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716117515] [2019-11-15 22:05:05,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892308210] [2019-11-15 22:05:05,896 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:05,933 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 22:05:05,934 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:05,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-15 22:05:05,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:05,960 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:05,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2019-11-15 22:05:05,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725337029] [2019-11-15 22:05:05,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 22:05:05,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:05,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 22:05:05,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:05:05,963 INFO L87 Difference]: Start difference. First operand 92 states and 112 transitions. Second operand 13 states. [2019-11-15 22:05:06,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:06,204 INFO L93 Difference]: Finished difference Result 132 states and 137 transitions. [2019-11-15 22:05:06,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-15 22:05:06,207 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-11-15 22:05:06,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:06,208 INFO L225 Difference]: With dead ends: 132 [2019-11-15 22:05:06,208 INFO L226 Difference]: Without dead ends: 131 [2019-11-15 22:05:06,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2019-11-15 22:05:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-11-15 22:05:06,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2019-11-15 22:05:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-15 22:05:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2019-11-15 22:05:06,229 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 27 [2019-11-15 22:05:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:06,230 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2019-11-15 22:05:06,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 22:05:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2019-11-15 22:05:06,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 22:05:06,231 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:06,232 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:05:06,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:06,436 INFO L410 AbstractCegarLoop]: === Iteration 8 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:06,436 INFO L82 PathProgramCache]: Analyzing trace with hash -563967927, now seen corresponding path program 1 times [2019-11-15 22:05:06,436 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:06,436 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675911925] [2019-11-15 22:05:06,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:06,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:06,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-15 22:05:06,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675911925] [2019-11-15 22:05:06,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586948111] [2019-11-15 22:05:06,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:05:06,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-15 22:05:06,578 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:06,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-15 22:05:06,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009572631] [2019-11-15 22:05:06,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:05:06,579 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:05:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:05:06,579 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand 8 states. [2019-11-15 22:05:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:06,637 INFO L93 Difference]: Finished difference Result 153 states and 200 transitions. [2019-11-15 22:05:06,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:05:06,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2019-11-15 22:05:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:06,640 INFO L225 Difference]: With dead ends: 153 [2019-11-15 22:05:06,640 INFO L226 Difference]: Without dead ends: 151 [2019-11-15 22:05:06,641 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:05:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-15 22:05:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 145. [2019-11-15 22:05:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-15 22:05:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 177 transitions. [2019-11-15 22:05:06,654 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 177 transitions. Word has length 26 [2019-11-15 22:05:06,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:06,655 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 177 transitions. [2019-11-15 22:05:06,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:05:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 177 transitions. [2019-11-15 22:05:06,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 22:05:06,656 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:06,656 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:05:06,859 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:06,860 INFO L410 AbstractCegarLoop]: === Iteration 9 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:06,860 INFO L82 PathProgramCache]: Analyzing trace with hash -303136509, now seen corresponding path program 1 times [2019-11-15 22:05:06,860 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:06,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726473281] [2019-11-15 22:05:06,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:06,861 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:06,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-15 22:05:06,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726473281] [2019-11-15 22:05:06,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835984622] [2019-11-15 22:05:06,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:06,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 22:05:06,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:07,007 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-15 22:05:07,008 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 22:05:07,008 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2019-11-15 22:05:07,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576022326] [2019-11-15 22:05:07,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:05:07,009 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:07,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:05:07,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:05:07,009 INFO L87 Difference]: Start difference. First operand 145 states and 177 transitions. Second operand 6 states. [2019-11-15 22:05:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:07,044 INFO L93 Difference]: Finished difference Result 145 states and 177 transitions. [2019-11-15 22:05:07,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:05:07,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-15 22:05:07,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:07,046 INFO L225 Difference]: With dead ends: 145 [2019-11-15 22:05:07,046 INFO L226 Difference]: Without dead ends: 129 [2019-11-15 22:05:07,047 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:05:07,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-15 22:05:07,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-11-15 22:05:07,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-11-15 22:05:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 144 transitions. [2019-11-15 22:05:07,058 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 144 transitions. Word has length 27 [2019-11-15 22:05:07,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:07,059 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 144 transitions. [2019-11-15 22:05:07,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:05:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 144 transitions. [2019-11-15 22:05:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 22:05:07,060 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:07,060 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1] [2019-11-15 22:05:07,265 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:07,266 INFO L410 AbstractCegarLoop]: === Iteration 10 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:07,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1757224061, now seen corresponding path program 5 times [2019-11-15 22:05:07,266 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:07,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644242020] [2019-11-15 22:05:07,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:07,267 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:07,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:07,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644242020] [2019-11-15 22:05:07,449 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941032052] [2019-11-15 22:05:07,449 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:07,503 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-11-15 22:05:07,503 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:07,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-15 22:05:07,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:07,532 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:07,533 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:07,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2019-11-15 22:05:07,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008847262] [2019-11-15 22:05:07,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-15 22:05:07,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:07,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-15 22:05:07,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2019-11-15 22:05:07,538 INFO L87 Difference]: Start difference. First operand 129 states and 144 transitions. Second operand 15 states. [2019-11-15 22:05:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:07,830 INFO L93 Difference]: Finished difference Result 167 states and 173 transitions. [2019-11-15 22:05:07,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-15 22:05:07,831 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2019-11-15 22:05:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:07,832 INFO L225 Difference]: With dead ends: 167 [2019-11-15 22:05:07,832 INFO L226 Difference]: Without dead ends: 166 [2019-11-15 22:05:07,833 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2019-11-15 22:05:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-15 22:05:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 154. [2019-11-15 22:05:07,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-15 22:05:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 172 transitions. [2019-11-15 22:05:07,853 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 172 transitions. Word has length 32 [2019-11-15 22:05:07,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:07,853 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 172 transitions. [2019-11-15 22:05:07,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-15 22:05:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 172 transitions. [2019-11-15 22:05:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-15 22:05:07,855 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:07,855 INFO L380 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 1, 1, 1, 1] [2019-11-15 22:05:08,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:08,056 INFO L410 AbstractCegarLoop]: === Iteration 11 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:08,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:08,056 INFO L82 PathProgramCache]: Analyzing trace with hash -512208024, now seen corresponding path program 6 times [2019-11-15 22:05:08,056 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:08,056 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777129810] [2019-11-15 22:05:08,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:08,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:08,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:05:08,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777129810] [2019-11-15 22:05:08,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928114557] [2019-11-15 22:05:08,253 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:08,303 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-11-15 22:05:08,303 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:08,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 22:05:08,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-15 22:05:08,352 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:08,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11] total 17 [2019-11-15 22:05:08,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632996236] [2019-11-15 22:05:08,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 22:05:08,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:08,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 22:05:08,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2019-11-15 22:05:08,354 INFO L87 Difference]: Start difference. First operand 154 states and 172 transitions. Second operand 18 states. [2019-11-15 22:05:08,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:08,397 INFO L93 Difference]: Finished difference Result 154 states and 172 transitions. [2019-11-15 22:05:08,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:05:08,399 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 37 [2019-11-15 22:05:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:08,400 INFO L225 Difference]: With dead ends: 154 [2019-11-15 22:05:08,400 INFO L226 Difference]: Without dead ends: 153 [2019-11-15 22:05:08,401 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2019-11-15 22:05:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-15 22:05:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-11-15 22:05:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-15 22:05:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 171 transitions. [2019-11-15 22:05:08,409 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 171 transitions. Word has length 37 [2019-11-15 22:05:08,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:08,410 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 171 transitions. [2019-11-15 22:05:08,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 22:05:08,410 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 171 transitions. [2019-11-15 22:05:08,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-15 22:05:08,412 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:08,412 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-15 22:05:08,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:08,615 INFO L410 AbstractCegarLoop]: === Iteration 12 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:08,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:08,616 INFO L82 PathProgramCache]: Analyzing trace with hash 867149367, now seen corresponding path program 2 times [2019-11-15 22:05:08,616 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:08,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419688712] [2019-11-15 22:05:08,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:08,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:08,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-15 22:05:08,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419688712] [2019-11-15 22:05:08,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876877192] [2019-11-15 22:05:08,731 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:08,769 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:05:08,769 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:08,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 22:05:08,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-15 22:05:08,809 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:08,809 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-11-15 22:05:08,810 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607046746] [2019-11-15 22:05:08,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 22:05:08,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:08,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 22:05:08,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:05:08,811 INFO L87 Difference]: Start difference. First operand 153 states and 171 transitions. Second operand 10 states. [2019-11-15 22:05:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:08,858 INFO L93 Difference]: Finished difference Result 207 states and 237 transitions. [2019-11-15 22:05:08,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:05:08,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 38 [2019-11-15 22:05:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:08,860 INFO L225 Difference]: With dead ends: 207 [2019-11-15 22:05:08,860 INFO L226 Difference]: Without dead ends: 185 [2019-11-15 22:05:08,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-15 22:05:08,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-11-15 22:05:08,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 179. [2019-11-15 22:05:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-11-15 22:05:08,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 197 transitions. [2019-11-15 22:05:08,870 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 197 transitions. Word has length 38 [2019-11-15 22:05:08,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:08,871 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 197 transitions. [2019-11-15 22:05:08,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 22:05:08,871 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 197 transitions. [2019-11-15 22:05:08,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-15 22:05:08,873 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:08,873 INFO L380 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2019-11-15 22:05:09,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:09,077 INFO L410 AbstractCegarLoop]: === Iteration 13 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:09,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1066180599, now seen corresponding path program 3 times [2019-11-15 22:05:09,078 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:09,078 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402218177] [2019-11-15 22:05:09,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:09,078 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:09,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-15 22:05:09,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402218177] [2019-11-15 22:05:09,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092167612] [2019-11-15 22:05:09,236 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:09,282 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-15 22:05:09,282 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:09,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 22:05:09,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-15 22:05:09,339 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:09,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2019-11-15 22:05:09,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337868681] [2019-11-15 22:05:09,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-15 22:05:09,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:09,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-15 22:05:09,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:05:09,340 INFO L87 Difference]: Start difference. First operand 179 states and 197 transitions. Second operand 12 states. [2019-11-15 22:05:09,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:09,388 INFO L93 Difference]: Finished difference Result 233 states and 263 transitions. [2019-11-15 22:05:09,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 22:05:09,389 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 50 [2019-11-15 22:05:09,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:09,390 INFO L225 Difference]: With dead ends: 233 [2019-11-15 22:05:09,390 INFO L226 Difference]: Without dead ends: 204 [2019-11-15 22:05:09,391 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:05:09,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-11-15 22:05:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2019-11-15 22:05:09,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-15 22:05:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 216 transitions. [2019-11-15 22:05:09,400 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 216 transitions. Word has length 50 [2019-11-15 22:05:09,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:09,400 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 216 transitions. [2019-11-15 22:05:09,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-15 22:05:09,401 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 216 transitions. [2019-11-15 22:05:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-15 22:05:09,403 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:09,403 INFO L380 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2019-11-15 22:05:09,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:09,607 INFO L410 AbstractCegarLoop]: === Iteration 14 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:09,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:09,607 INFO L82 PathProgramCache]: Analyzing trace with hash -158018185, now seen corresponding path program 4 times [2019-11-15 22:05:09,607 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:09,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371784051] [2019-11-15 22:05:09,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:09,608 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:09,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-11-15 22:05:09,803 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371784051] [2019-11-15 22:05:09,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54671391] [2019-11-15 22:05:09,804 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:09,860 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 22:05:09,861 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:09,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-15 22:05:09,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-11-15 22:05:09,953 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:09,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2019-11-15 22:05:09,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134834242] [2019-11-15 22:05:09,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-15 22:05:09,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-15 22:05:09,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2019-11-15 22:05:09,954 INFO L87 Difference]: Start difference. First operand 198 states and 216 transitions. Second operand 14 states. [2019-11-15 22:05:10,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:10,013 INFO L93 Difference]: Finished difference Result 252 states and 282 transitions. [2019-11-15 22:05:10,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 22:05:10,013 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2019-11-15 22:05:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:10,015 INFO L225 Difference]: With dead ends: 252 [2019-11-15 22:05:10,015 INFO L226 Difference]: Without dead ends: 216 [2019-11-15 22:05:10,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2019-11-15 22:05:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-15 22:05:10,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2019-11-15 22:05:10,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-11-15 22:05:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 228 transitions. [2019-11-15 22:05:10,027 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 228 transitions. Word has length 62 [2019-11-15 22:05:10,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:10,028 INFO L462 AbstractCegarLoop]: Abstraction has 210 states and 228 transitions. [2019-11-15 22:05:10,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-15 22:05:10,028 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 228 transitions. [2019-11-15 22:05:10,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-15 22:05:10,030 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:10,030 INFO L380 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2019-11-15 22:05:10,238 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:10,238 INFO L410 AbstractCegarLoop]: === Iteration 15 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1955313719, now seen corresponding path program 5 times [2019-11-15 22:05:10,239 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:10,239 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436469154] [2019-11-15 22:05:10,239 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:10,239 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:10,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-11-15 22:05:10,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436469154] [2019-11-15 22:05:10,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277279166] [2019-11-15 22:05:10,468 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:10,523 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2019-11-15 22:05:10,523 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:10,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-15 22:05:10,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-11-15 22:05:10,624 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:10,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2019-11-15 22:05:10,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015819782] [2019-11-15 22:05:10,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-15 22:05:10,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:10,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-15 22:05:10,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-11-15 22:05:10,626 INFO L87 Difference]: Start difference. First operand 210 states and 228 transitions. Second operand 16 states. [2019-11-15 22:05:10,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:10,704 INFO L93 Difference]: Finished difference Result 264 states and 294 transitions. [2019-11-15 22:05:10,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 22:05:10,705 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 74 [2019-11-15 22:05:10,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:10,707 INFO L225 Difference]: With dead ends: 264 [2019-11-15 22:05:10,707 INFO L226 Difference]: Without dead ends: 223 [2019-11-15 22:05:10,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-11-15 22:05:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-11-15 22:05:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 217. [2019-11-15 22:05:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-11-15 22:05:10,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 235 transitions. [2019-11-15 22:05:10,720 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 235 transitions. Word has length 74 [2019-11-15 22:05:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:10,722 INFO L462 AbstractCegarLoop]: Abstraction has 217 states and 235 transitions. [2019-11-15 22:05:10,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-15 22:05:10,722 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 235 transitions. [2019-11-15 22:05:10,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-15 22:05:10,724 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:10,725 INFO L380 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2019-11-15 22:05:10,927 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:10,927 INFO L410 AbstractCegarLoop]: === Iteration 16 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:10,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:10,928 INFO L82 PathProgramCache]: Analyzing trace with hash -330632009, now seen corresponding path program 6 times [2019-11-15 22:05:10,928 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:10,928 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080089478] [2019-11-15 22:05:10,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:10,928 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:10,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-11-15 22:05:11,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080089478] [2019-11-15 22:05:11,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037594093] [2019-11-15 22:05:11,236 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:11,284 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2019-11-15 22:05:11,284 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:11,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-15 22:05:11,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-11-15 22:05:11,414 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:11,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2019-11-15 22:05:11,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270021954] [2019-11-15 22:05:11,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-15 22:05:11,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:11,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-15 22:05:11,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2019-11-15 22:05:11,420 INFO L87 Difference]: Start difference. First operand 217 states and 235 transitions. Second operand 18 states. [2019-11-15 22:05:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:11,503 INFO L93 Difference]: Finished difference Result 271 states and 301 transitions. [2019-11-15 22:05:11,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 22:05:11,504 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 86 [2019-11-15 22:05:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:11,505 INFO L225 Difference]: With dead ends: 271 [2019-11-15 22:05:11,506 INFO L226 Difference]: Without dead ends: 230 [2019-11-15 22:05:11,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 92 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2019-11-15 22:05:11,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2019-11-15 22:05:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 224. [2019-11-15 22:05:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-15 22:05:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2019-11-15 22:05:11,516 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 86 [2019-11-15 22:05:11,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:11,516 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2019-11-15 22:05:11,516 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-15 22:05:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2019-11-15 22:05:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-15 22:05:11,519 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:11,519 INFO L380 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2019-11-15 22:05:11,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:11,722 INFO L410 AbstractCegarLoop]: === Iteration 17 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:11,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1066952498, now seen corresponding path program 7 times [2019-11-15 22:05:11,723 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:11,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51591925] [2019-11-15 22:05:11,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:11,723 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:11,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2019-11-15 22:05:12,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51591925] [2019-11-15 22:05:12,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831227993] [2019-11-15 22:05:12,052 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-15 22:05:12,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 0 proven. 175 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2019-11-15 22:05:12,272 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:12,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2019-11-15 22:05:12,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911018387] [2019-11-15 22:05:12,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-15 22:05:12,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:12,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-15 22:05:12,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2019-11-15 22:05:12,275 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 20 states. [2019-11-15 22:05:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:12,366 INFO L93 Difference]: Finished difference Result 278 states and 308 transitions. [2019-11-15 22:05:12,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-15 22:05:12,367 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 133 [2019-11-15 22:05:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:12,368 INFO L225 Difference]: With dead ends: 278 [2019-11-15 22:05:12,368 INFO L226 Difference]: Without dead ends: 237 [2019-11-15 22:05:12,369 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 140 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2019-11-15 22:05:12,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-11-15 22:05:12,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 231. [2019-11-15 22:05:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-11-15 22:05:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 249 transitions. [2019-11-15 22:05:12,384 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 249 transitions. Word has length 133 [2019-11-15 22:05:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:12,384 INFO L462 AbstractCegarLoop]: Abstraction has 231 states and 249 transitions. [2019-11-15 22:05:12,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-15 22:05:12,385 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 249 transitions. [2019-11-15 22:05:12,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-11-15 22:05:12,386 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:12,386 INFO L380 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2019-11-15 22:05:12,590 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:12,590 INFO L410 AbstractCegarLoop]: === Iteration 18 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:12,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:12,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1888355319, now seen corresponding path program 8 times [2019-11-15 22:05:12,590 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:12,590 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620270929] [2019-11-15 22:05:12,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:12,591 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:12,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2019-11-15 22:05:12,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620270929] [2019-11-15 22:05:12,974 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053768464] [2019-11-15 22:05:12,974 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:13,037 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:05:13,038 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:13,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 22:05:13,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2019-11-15 22:05:13,215 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:13,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2019-11-15 22:05:13,215 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616202985] [2019-11-15 22:05:13,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-15 22:05:13,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:13,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-15 22:05:13,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-11-15 22:05:13,218 INFO L87 Difference]: Start difference. First operand 231 states and 249 transitions. Second operand 22 states. [2019-11-15 22:05:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:13,319 INFO L93 Difference]: Finished difference Result 285 states and 315 transitions. [2019-11-15 22:05:13,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-15 22:05:13,319 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 110 [2019-11-15 22:05:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:13,321 INFO L225 Difference]: With dead ends: 285 [2019-11-15 22:05:13,321 INFO L226 Difference]: Without dead ends: 244 [2019-11-15 22:05:13,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 118 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-11-15 22:05:13,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-11-15 22:05:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 238. [2019-11-15 22:05:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-11-15 22:05:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 256 transitions. [2019-11-15 22:05:13,334 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 256 transitions. Word has length 110 [2019-11-15 22:05:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:13,334 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 256 transitions. [2019-11-15 22:05:13,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-15 22:05:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 256 transitions. [2019-11-15 22:05:13,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-15 22:05:13,337 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:13,337 INFO L380 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1] [2019-11-15 22:05:13,540 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:13,541 INFO L410 AbstractCegarLoop]: === Iteration 19 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:13,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:13,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1336522935, now seen corresponding path program 9 times [2019-11-15 22:05:13,541 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:13,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62357961] [2019-11-15 22:05:13,541 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:13,541 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:13,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-11-15 22:05:14,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62357961] [2019-11-15 22:05:14,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173811058] [2019-11-15 22:05:14,044 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:14,115 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2019-11-15 22:05:14,115 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:14,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-15 22:05:14,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2019-11-15 22:05:14,317 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:14,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2019-11-15 22:05:14,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249254781] [2019-11-15 22:05:14,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-15 22:05:14,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:14,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-15 22:05:14,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2019-11-15 22:05:14,322 INFO L87 Difference]: Start difference. First operand 238 states and 256 transitions. Second operand 24 states. [2019-11-15 22:05:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:14,454 INFO L93 Difference]: Finished difference Result 292 states and 322 transitions. [2019-11-15 22:05:14,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-15 22:05:14,455 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 122 [2019-11-15 22:05:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:14,457 INFO L225 Difference]: With dead ends: 292 [2019-11-15 22:05:14,457 INFO L226 Difference]: Without dead ends: 251 [2019-11-15 22:05:14,458 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 131 SyntacticMatches, 9 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2019-11-15 22:05:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-15 22:05:14,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 245. [2019-11-15 22:05:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2019-11-15 22:05:14,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2019-11-15 22:05:14,468 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 122 [2019-11-15 22:05:14,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:14,468 INFO L462 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2019-11-15 22:05:14,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-15 22:05:14,468 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2019-11-15 22:05:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-11-15 22:05:14,471 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:14,471 INFO L380 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2019-11-15 22:05:14,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:14,683 INFO L410 AbstractCegarLoop]: === Iteration 20 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:14,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:14,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1176109879, now seen corresponding path program 10 times [2019-11-15 22:05:14,684 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:14,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327909138] [2019-11-15 22:05:14,684 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:14,684 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:14,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2019-11-15 22:05:15,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327909138] [2019-11-15 22:05:15,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280382130] [2019-11-15 22:05:15,217 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:15,289 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 22:05:15,289 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:15,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-15 22:05:15,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2019-11-15 22:05:15,472 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:15,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2019-11-15 22:05:15,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419600995] [2019-11-15 22:05:15,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-15 22:05:15,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:15,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-15 22:05:15,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2019-11-15 22:05:15,475 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 26 states. [2019-11-15 22:05:15,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:15,566 INFO L93 Difference]: Finished difference Result 299 states and 329 transitions. [2019-11-15 22:05:15,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-15 22:05:15,566 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 134 [2019-11-15 22:05:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:15,568 INFO L225 Difference]: With dead ends: 299 [2019-11-15 22:05:15,568 INFO L226 Difference]: Without dead ends: 258 [2019-11-15 22:05:15,569 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 144 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2019-11-15 22:05:15,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-11-15 22:05:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 252. [2019-11-15 22:05:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-15 22:05:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 270 transitions. [2019-11-15 22:05:15,579 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 270 transitions. Word has length 134 [2019-11-15 22:05:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:15,579 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 270 transitions. [2019-11-15 22:05:15,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-15 22:05:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 270 transitions. [2019-11-15 22:05:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-15 22:05:15,582 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:15,582 INFO L380 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1] [2019-11-15 22:05:15,787 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:15,787 INFO L410 AbstractCegarLoop]: === Iteration 21 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:15,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:15,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1656708873, now seen corresponding path program 11 times [2019-11-15 22:05:15,787 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:15,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794376683] [2019-11-15 22:05:15,788 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:15,788 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:15,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2019-11-15 22:05:16,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794376683] [2019-11-15 22:05:16,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502966064] [2019-11-15 22:05:16,409 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:16,487 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2019-11-15 22:05:16,487 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:16,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-15 22:05:16,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2019-11-15 22:05:16,765 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:16,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2019-11-15 22:05:16,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715310604] [2019-11-15 22:05:16,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-15 22:05:16,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:16,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-15 22:05:16,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2019-11-15 22:05:16,767 INFO L87 Difference]: Start difference. First operand 252 states and 270 transitions. Second operand 28 states. [2019-11-15 22:05:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:16,904 INFO L93 Difference]: Finished difference Result 306 states and 336 transitions. [2019-11-15 22:05:16,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-15 22:05:16,904 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 146 [2019-11-15 22:05:16,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:16,906 INFO L225 Difference]: With dead ends: 306 [2019-11-15 22:05:16,906 INFO L226 Difference]: Without dead ends: 265 [2019-11-15 22:05:16,907 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 157 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2019-11-15 22:05:16,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2019-11-15 22:05:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2019-11-15 22:05:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-11-15 22:05:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 277 transitions. [2019-11-15 22:05:16,917 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 277 transitions. Word has length 146 [2019-11-15 22:05:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:16,918 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 277 transitions. [2019-11-15 22:05:16,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-15 22:05:16,918 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 277 transitions. [2019-11-15 22:05:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-11-15 22:05:16,921 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:16,921 INFO L380 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1] [2019-11-15 22:05:17,125 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:17,125 INFO L410 AbstractCegarLoop]: === Iteration 22 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:17,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:17,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2039869892, now seen corresponding path program 12 times [2019-11-15 22:05:17,126 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:17,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737089593] [2019-11-15 22:05:17,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:17,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:17,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2019-11-15 22:05:17,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737089593] [2019-11-15 22:05:17,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239929190] [2019-11-15 22:05:17,895 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:17,992 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2019-11-15 22:05:17,992 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:17,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-15 22:05:17,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 510 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2019-11-15 22:05:18,308 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:18,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2019-11-15 22:05:18,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774729904] [2019-11-15 22:05:18,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-15 22:05:18,309 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:18,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-15 22:05:18,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2019-11-15 22:05:18,310 INFO L87 Difference]: Start difference. First operand 259 states and 277 transitions. Second operand 30 states. [2019-11-15 22:05:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:18,450 INFO L93 Difference]: Finished difference Result 313 states and 343 transitions. [2019-11-15 22:05:18,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-15 22:05:18,451 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 193 [2019-11-15 22:05:18,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:18,453 INFO L225 Difference]: With dead ends: 313 [2019-11-15 22:05:18,453 INFO L226 Difference]: Without dead ends: 272 [2019-11-15 22:05:18,454 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 205 SyntacticMatches, 12 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2019-11-15 22:05:18,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-11-15 22:05:18,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 266. [2019-11-15 22:05:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-15 22:05:18,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 284 transitions. [2019-11-15 22:05:18,466 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 284 transitions. Word has length 193 [2019-11-15 22:05:18,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:18,466 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 284 transitions. [2019-11-15 22:05:18,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-15 22:05:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 284 transitions. [2019-11-15 22:05:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-15 22:05:18,470 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:18,471 INFO L380 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1] [2019-11-15 22:05:18,674 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:18,674 INFO L410 AbstractCegarLoop]: === Iteration 23 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:18,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:18,675 INFO L82 PathProgramCache]: Analyzing trace with hash 350954254, now seen corresponding path program 13 times [2019-11-15 22:05:18,675 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:18,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264545871] [2019-11-15 22:05:18,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:18,675 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:18,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 598 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2019-11-15 22:05:19,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264545871] [2019-11-15 22:05:19,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040258004] [2019-11-15 22:05:19,512 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:19,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-15 22:05:19,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 598 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2019-11-15 22:05:19,922 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:19,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2019-11-15 22:05:19,922 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493467255] [2019-11-15 22:05:19,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-11-15 22:05:19,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:19,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-11-15 22:05:19,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2019-11-15 22:05:19,926 INFO L87 Difference]: Start difference. First operand 266 states and 284 transitions. Second operand 32 states. [2019-11-15 22:05:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:20,094 INFO L93 Difference]: Finished difference Result 320 states and 350 transitions. [2019-11-15 22:05:20,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-15 22:05:20,095 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 205 [2019-11-15 22:05:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:20,097 INFO L225 Difference]: With dead ends: 320 [2019-11-15 22:05:20,097 INFO L226 Difference]: Without dead ends: 279 [2019-11-15 22:05:20,098 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 218 SyntacticMatches, 13 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2019-11-15 22:05:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-11-15 22:05:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 273. [2019-11-15 22:05:20,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2019-11-15 22:05:20,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 291 transitions. [2019-11-15 22:05:20,113 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 291 transitions. Word has length 205 [2019-11-15 22:05:20,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:20,115 INFO L462 AbstractCegarLoop]: Abstraction has 273 states and 291 transitions. [2019-11-15 22:05:20,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-11-15 22:05:20,115 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 291 transitions. [2019-11-15 22:05:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-15 22:05:20,118 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:20,119 INFO L380 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1] [2019-11-15 22:05:20,323 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:20,323 INFO L410 AbstractCegarLoop]: === Iteration 24 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash -419025284, now seen corresponding path program 14 times [2019-11-15 22:05:20,324 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:20,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514676532] [2019-11-15 22:05:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:20,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:20,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:21,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2019-11-15 22:05:21,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514676532] [2019-11-15 22:05:21,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755593160] [2019-11-15 22:05:21,213 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:21,290 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:05:21,291 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:21,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-15 22:05:21,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2019-11-15 22:05:21,691 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:21,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2019-11-15 22:05:21,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207193486] [2019-11-15 22:05:21,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-15 22:05:21,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:21,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-15 22:05:21,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 22:05:21,695 INFO L87 Difference]: Start difference. First operand 273 states and 291 transitions. Second operand 34 states. [2019-11-15 22:05:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:21,836 INFO L93 Difference]: Finished difference Result 327 states and 357 transitions. [2019-11-15 22:05:21,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-15 22:05:21,837 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 217 [2019-11-15 22:05:21,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:21,839 INFO L225 Difference]: With dead ends: 327 [2019-11-15 22:05:21,839 INFO L226 Difference]: Without dead ends: 286 [2019-11-15 22:05:21,840 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 231 SyntacticMatches, 14 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2019-11-15 22:05:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2019-11-15 22:05:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2019-11-15 22:05:21,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-11-15 22:05:21,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 298 transitions. [2019-11-15 22:05:21,851 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 298 transitions. Word has length 217 [2019-11-15 22:05:21,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:21,852 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 298 transitions. [2019-11-15 22:05:21,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-15 22:05:21,852 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 298 transitions. [2019-11-15 22:05:21,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-11-15 22:05:21,855 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:21,856 INFO L380 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1] [2019-11-15 22:05:22,058 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:22,059 INFO L410 AbstractCegarLoop]: === Iteration 25 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:22,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:22,059 INFO L82 PathProgramCache]: Analyzing trace with hash 537467854, now seen corresponding path program 15 times [2019-11-15 22:05:22,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:22,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388372558] [2019-11-15 22:05:22,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:22,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:22,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2106 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2019-11-15 22:05:23,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388372558] [2019-11-15 22:05:23,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960720291] [2019-11-15 22:05:23,071 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:23,169 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2019-11-15 22:05:23,170 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:23,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-15 22:05:23,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2106 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2019-11-15 22:05:23,622 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:23,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2019-11-15 22:05:23,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319985469] [2019-11-15 22:05:23,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-11-15 22:05:23,626 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:23,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-11-15 22:05:23,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2019-11-15 22:05:23,627 INFO L87 Difference]: Start difference. First operand 280 states and 298 transitions. Second operand 36 states. [2019-11-15 22:05:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:23,789 INFO L93 Difference]: Finished difference Result 334 states and 364 transitions. [2019-11-15 22:05:23,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-15 22:05:23,789 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 229 [2019-11-15 22:05:23,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:23,791 INFO L225 Difference]: With dead ends: 334 [2019-11-15 22:05:23,791 INFO L226 Difference]: Without dead ends: 293 [2019-11-15 22:05:23,792 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 244 SyntacticMatches, 15 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=919, Unknown=0, NotChecked=0, Total=1260 [2019-11-15 22:05:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2019-11-15 22:05:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 287. [2019-11-15 22:05:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2019-11-15 22:05:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 305 transitions. [2019-11-15 22:05:23,802 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 305 transitions. Word has length 229 [2019-11-15 22:05:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:23,803 INFO L462 AbstractCegarLoop]: Abstraction has 287 states and 305 transitions. [2019-11-15 22:05:23,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-11-15 22:05:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 305 transitions. [2019-11-15 22:05:23,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-11-15 22:05:23,807 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:23,807 INFO L380 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1] [2019-11-15 22:05:24,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:24,010 INFO L410 AbstractCegarLoop]: === Iteration 26 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:24,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1353465532, now seen corresponding path program 16 times [2019-11-15 22:05:24,011 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:24,011 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705307354] [2019-11-15 22:05:24,011 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:24,011 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:24,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 0 proven. 904 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-11-15 22:05:25,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705307354] [2019-11-15 22:05:25,071 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937809350] [2019-11-15 22:05:25,071 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:25,161 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 22:05:25,161 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:25,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-15 22:05:25,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2332 backedges. 0 proven. 904 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-11-15 22:05:25,559 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:25,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2019-11-15 22:05:25,559 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121532097] [2019-11-15 22:05:25,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-15 22:05:25,559 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:25,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-15 22:05:25,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 22:05:25,560 INFO L87 Difference]: Start difference. First operand 287 states and 305 transitions. Second operand 38 states. [2019-11-15 22:05:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:25,748 INFO L93 Difference]: Finished difference Result 341 states and 371 transitions. [2019-11-15 22:05:25,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-11-15 22:05:25,748 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 241 [2019-11-15 22:05:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:25,750 INFO L225 Difference]: With dead ends: 341 [2019-11-15 22:05:25,751 INFO L226 Difference]: Without dead ends: 300 [2019-11-15 22:05:25,751 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 257 SyntacticMatches, 16 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2019-11-15 22:05:25,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-15 22:05:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2019-11-15 22:05:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-11-15 22:05:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 312 transitions. [2019-11-15 22:05:25,760 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 312 transitions. Word has length 241 [2019-11-15 22:05:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:25,762 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 312 transitions. [2019-11-15 22:05:25,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-15 22:05:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 312 transitions. [2019-11-15 22:05:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-11-15 22:05:25,766 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:25,766 INFO L380 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1] [2019-11-15 22:05:25,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:25,970 INFO L410 AbstractCegarLoop]: === Iteration 27 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:25,970 INFO L82 PathProgramCache]: Analyzing trace with hash -843307890, now seen corresponding path program 17 times [2019-11-15 22:05:25,970 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:25,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147509968] [2019-11-15 22:05:25,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:25,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:25,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2570 backedges. 0 proven. 1020 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2019-11-15 22:05:27,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147509968] [2019-11-15 22:05:27,156 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728451539] [2019-11-15 22:05:27,156 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:27,261 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2019-11-15 22:05:27,261 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:27,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-15 22:05:27,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2570 backedges. 0 proven. 1020 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2019-11-15 22:05:27,691 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:27,692 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2019-11-15 22:05:27,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266330919] [2019-11-15 22:05:27,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-11-15 22:05:27,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:27,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-11-15 22:05:27,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=1141, Unknown=0, NotChecked=0, Total=1560 [2019-11-15 22:05:27,693 INFO L87 Difference]: Start difference. First operand 294 states and 312 transitions. Second operand 40 states. [2019-11-15 22:05:27,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:27,874 INFO L93 Difference]: Finished difference Result 348 states and 378 transitions. [2019-11-15 22:05:27,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-11-15 22:05:27,875 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 253 [2019-11-15 22:05:27,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:27,877 INFO L225 Difference]: With dead ends: 348 [2019-11-15 22:05:27,877 INFO L226 Difference]: Without dead ends: 307 [2019-11-15 22:05:27,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 270 SyntacticMatches, 17 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 803 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=419, Invalid=1141, Unknown=0, NotChecked=0, Total=1560 [2019-11-15 22:05:27,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2019-11-15 22:05:27,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2019-11-15 22:05:27,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-11-15 22:05:27,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 319 transitions. [2019-11-15 22:05:27,887 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 319 transitions. Word has length 253 [2019-11-15 22:05:27,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:27,887 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 319 transitions. [2019-11-15 22:05:27,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-11-15 22:05:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 319 transitions. [2019-11-15 22:05:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-11-15 22:05:27,889 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:27,890 INFO L380 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1] [2019-11-15 22:05:28,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:28,093 INFO L410 AbstractCegarLoop]: === Iteration 28 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:28,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:28,094 INFO L82 PathProgramCache]: Analyzing trace with hash 186138364, now seen corresponding path program 18 times [2019-11-15 22:05:28,094 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:28,094 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237948130] [2019-11-15 22:05:28,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:28,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:28,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 0 proven. 1143 refuted. 0 times theorem prover too weak. 1677 trivial. 0 not checked. [2019-11-15 22:05:29,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237948130] [2019-11-15 22:05:29,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063968884] [2019-11-15 22:05:29,385 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:29,510 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2019-11-15 22:05:29,511 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:29,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-15 22:05:29,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 0 proven. 1143 refuted. 0 times theorem prover too weak. 1677 trivial. 0 not checked. [2019-11-15 22:05:29,994 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:29,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2019-11-15 22:05:29,994 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248770458] [2019-11-15 22:05:29,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-15 22:05:29,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:29,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-15 22:05:29,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=1261, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 22:05:29,996 INFO L87 Difference]: Start difference. First operand 301 states and 319 transitions. Second operand 42 states. [2019-11-15 22:05:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:30,179 INFO L93 Difference]: Finished difference Result 355 states and 385 transitions. [2019-11-15 22:05:30,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-11-15 22:05:30,180 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 265 [2019-11-15 22:05:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:30,182 INFO L225 Difference]: With dead ends: 355 [2019-11-15 22:05:30,182 INFO L226 Difference]: Without dead ends: 314 [2019-11-15 22:05:30,183 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 283 SyntacticMatches, 18 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 895 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=461, Invalid=1261, Unknown=0, NotChecked=0, Total=1722 [2019-11-15 22:05:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2019-11-15 22:05:30,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2019-11-15 22:05:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2019-11-15 22:05:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 326 transitions. [2019-11-15 22:05:30,192 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 326 transitions. Word has length 265 [2019-11-15 22:05:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:30,192 INFO L462 AbstractCegarLoop]: Abstraction has 308 states and 326 transitions. [2019-11-15 22:05:30,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-15 22:05:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 326 transitions. [2019-11-15 22:05:30,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-11-15 22:05:30,195 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:30,195 INFO L380 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1] [2019-11-15 22:05:30,398 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:30,399 INFO L410 AbstractCegarLoop]: === Iteration 29 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:30,399 INFO L82 PathProgramCache]: Analyzing trace with hash 420240905, now seen corresponding path program 19 times [2019-11-15 22:05:30,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:30,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717202446] [2019-11-15 22:05:30,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:30,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:30,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 0 proven. 1273 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2019-11-15 22:05:31,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717202446] [2019-11-15 22:05:31,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429783484] [2019-11-15 22:05:31,769 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:31,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-15 22:05:31,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2263 backedges. 0 proven. 1273 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2019-11-15 22:05:32,304 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:32,304 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2019-11-15 22:05:32,304 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859833918] [2019-11-15 22:05:32,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-11-15 22:05:32,305 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:32,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-11-15 22:05:32,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1387, Unknown=0, NotChecked=0, Total=1892 [2019-11-15 22:05:32,305 INFO L87 Difference]: Start difference. First operand 308 states and 326 transitions. Second operand 44 states. [2019-11-15 22:05:32,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:32,483 INFO L93 Difference]: Finished difference Result 362 states and 392 transitions. [2019-11-15 22:05:32,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-15 22:05:32,484 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 242 [2019-11-15 22:05:32,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:32,486 INFO L225 Difference]: With dead ends: 362 [2019-11-15 22:05:32,486 INFO L226 Difference]: Without dead ends: 321 [2019-11-15 22:05:32,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 261 SyntacticMatches, 19 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=505, Invalid=1387, Unknown=0, NotChecked=0, Total=1892 [2019-11-15 22:05:32,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-11-15 22:05:32,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315. [2019-11-15 22:05:32,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-11-15 22:05:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 333 transitions. [2019-11-15 22:05:32,496 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 333 transitions. Word has length 242 [2019-11-15 22:05:32,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:32,496 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 333 transitions. [2019-11-15 22:05:32,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-11-15 22:05:32,496 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 333 transitions. [2019-11-15 22:05:32,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2019-11-15 22:05:32,498 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:32,499 INFO L380 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1] [2019-11-15 22:05:32,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:32,702 INFO L410 AbstractCegarLoop]: === Iteration 30 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:32,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:32,702 INFO L82 PathProgramCache]: Analyzing trace with hash -2063192260, now seen corresponding path program 20 times [2019-11-15 22:05:32,702 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:32,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96990255] [2019-11-15 22:05:32,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:32,703 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:32,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:34,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 0 proven. 1410 refuted. 0 times theorem prover too weak. 1946 trivial. 0 not checked. [2019-11-15 22:05:34,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96990255] [2019-11-15 22:05:34,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098037497] [2019-11-15 22:05:34,222 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:34,314 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-15 22:05:34,314 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:34,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 43 conjunts are in the unsatisfiable core [2019-11-15 22:05:34,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3356 backedges. 0 proven. 1410 refuted. 0 times theorem prover too weak. 1946 trivial. 0 not checked. [2019-11-15 22:05:34,956 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:34,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2019-11-15 22:05:34,957 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647474903] [2019-11-15 22:05:34,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 46 states [2019-11-15 22:05:34,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:34,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2019-11-15 22:05:34,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2019-11-15 22:05:34,960 INFO L87 Difference]: Start difference. First operand 315 states and 333 transitions. Second operand 46 states. [2019-11-15 22:05:35,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:35,156 INFO L93 Difference]: Finished difference Result 369 states and 399 transitions. [2019-11-15 22:05:35,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-15 22:05:35,156 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 289 [2019-11-15 22:05:35,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:35,158 INFO L225 Difference]: With dead ends: 369 [2019-11-15 22:05:35,159 INFO L226 Difference]: Without dead ends: 328 [2019-11-15 22:05:35,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 309 SyntacticMatches, 20 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2019-11-15 22:05:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2019-11-15 22:05:35,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 322. [2019-11-15 22:05:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-11-15 22:05:35,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 340 transitions. [2019-11-15 22:05:35,168 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 340 transitions. Word has length 289 [2019-11-15 22:05:35,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:35,169 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 340 transitions. [2019-11-15 22:05:35,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 46 states. [2019-11-15 22:05:35,169 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 340 transitions. [2019-11-15 22:05:35,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-11-15 22:05:35,171 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:35,171 INFO L380 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1] [2019-11-15 22:05:35,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:35,375 INFO L410 AbstractCegarLoop]: === Iteration 31 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1826765367, now seen corresponding path program 21 times [2019-11-15 22:05:35,376 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:35,376 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608489778] [2019-11-15 22:05:35,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:35,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:35,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2753 backedges. 0 proven. 1554 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2019-11-15 22:05:36,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608489778] [2019-11-15 22:05:36,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967157837] [2019-11-15 22:05:36,840 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:36,942 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2019-11-15 22:05:36,942 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:36,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 45 conjunts are in the unsatisfiable core [2019-11-15 22:05:36,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2753 backedges. 0 proven. 1554 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2019-11-15 22:05:37,414 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:37,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2019-11-15 22:05:37,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006547543] [2019-11-15 22:05:37,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-11-15 22:05:37,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:37,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-11-15 22:05:37,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2019-11-15 22:05:37,416 INFO L87 Difference]: Start difference. First operand 322 states and 340 transitions. Second operand 48 states. [2019-11-15 22:05:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:37,583 INFO L93 Difference]: Finished difference Result 376 states and 406 transitions. [2019-11-15 22:05:37,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-11-15 22:05:37,583 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 266 [2019-11-15 22:05:37,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:37,585 INFO L225 Difference]: With dead ends: 376 [2019-11-15 22:05:37,585 INFO L226 Difference]: Without dead ends: 335 [2019-11-15 22:05:37,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 287 SyntacticMatches, 21 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1201 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2019-11-15 22:05:37,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-11-15 22:05:37,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 329. [2019-11-15 22:05:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-11-15 22:05:37,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 347 transitions. [2019-11-15 22:05:37,595 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 347 transitions. Word has length 266 [2019-11-15 22:05:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:37,596 INFO L462 AbstractCegarLoop]: Abstraction has 329 states and 347 transitions. [2019-11-15 22:05:37,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-11-15 22:05:37,596 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 347 transitions. [2019-11-15 22:05:37,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-11-15 22:05:37,598 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:37,599 INFO L380 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2019-11-15 22:05:37,802 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:37,803 INFO L410 AbstractCegarLoop]: === Iteration 32 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:37,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:37,803 INFO L82 PathProgramCache]: Analyzing trace with hash 338825084, now seen corresponding path program 22 times [2019-11-15 22:05:37,803 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:37,803 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133821259] [2019-11-15 22:05:37,803 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:37,803 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:37,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 3940 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2019-11-15 22:05:39,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133821259] [2019-11-15 22:05:39,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367303199] [2019-11-15 22:05:39,840 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:39,961 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-15 22:05:39,962 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:39,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 47 conjunts are in the unsatisfiable core [2019-11-15 22:05:39,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3940 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2019-11-15 22:05:40,583 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:40,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2019-11-15 22:05:40,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784870562] [2019-11-15 22:05:40,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 50 states [2019-11-15 22:05:40,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:40,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2019-11-15 22:05:40,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=649, Invalid=1801, Unknown=0, NotChecked=0, Total=2450 [2019-11-15 22:05:40,585 INFO L87 Difference]: Start difference. First operand 329 states and 347 transitions. Second operand 50 states. [2019-11-15 22:05:40,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:40,781 INFO L93 Difference]: Finished difference Result 383 states and 413 transitions. [2019-11-15 22:05:40,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-11-15 22:05:40,781 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 313 [2019-11-15 22:05:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:40,783 INFO L225 Difference]: With dead ends: 383 [2019-11-15 22:05:40,783 INFO L226 Difference]: Without dead ends: 342 [2019-11-15 22:05:40,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 335 SyntacticMatches, 22 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1313 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=649, Invalid=1801, Unknown=0, NotChecked=0, Total=2450 [2019-11-15 22:05:40,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-11-15 22:05:40,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 336. [2019-11-15 22:05:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-11-15 22:05:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 354 transitions. [2019-11-15 22:05:40,794 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 354 transitions. Word has length 313 [2019-11-15 22:05:40,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:40,794 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 354 transitions. [2019-11-15 22:05:40,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 50 states. [2019-11-15 22:05:40,794 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 354 transitions. [2019-11-15 22:05:40,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2019-11-15 22:05:40,797 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:40,797 INFO L380 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1] [2019-11-15 22:05:41,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:41,000 INFO L410 AbstractCegarLoop]: === Iteration 33 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:41,001 INFO L82 PathProgramCache]: Analyzing trace with hash 117652873, now seen corresponding path program 23 times [2019-11-15 22:05:41,001 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:41,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293685095] [2019-11-15 22:05:41,001 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:41,002 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:41,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3291 backedges. 0 proven. 1863 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-11-15 22:05:43,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293685095] [2019-11-15 22:05:43,025 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735410490] [2019-11-15 22:05:43,025 INFO L92 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:43,144 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2019-11-15 22:05:43,144 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:43,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 49 conjunts are in the unsatisfiable core [2019-11-15 22:05:43,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:43,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3291 backedges. 0 proven. 1863 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-11-15 22:05:43,759 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:05:43,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2019-11-15 22:05:43,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590570078] [2019-11-15 22:05:43,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-11-15 22:05:43,760 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:05:43,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-11-15 22:05:43,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2019-11-15 22:05:43,762 INFO L87 Difference]: Start difference. First operand 336 states and 354 transitions. Second operand 52 states. [2019-11-15 22:05:43,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:05:43,945 INFO L93 Difference]: Finished difference Result 390 states and 420 transitions. [2019-11-15 22:05:43,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-11-15 22:05:43,945 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 290 [2019-11-15 22:05:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:05:43,947 INFO L225 Difference]: With dead ends: 390 [2019-11-15 22:05:43,947 INFO L226 Difference]: Without dead ends: 349 [2019-11-15 22:05:43,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 313 SyntacticMatches, 23 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1430 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2019-11-15 22:05:43,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-15 22:05:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 343. [2019-11-15 22:05:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-11-15 22:05:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 361 transitions. [2019-11-15 22:05:43,957 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 361 transitions. Word has length 290 [2019-11-15 22:05:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:05:43,957 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 361 transitions. [2019-11-15 22:05:43,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-11-15 22:05:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 361 transitions. [2019-11-15 22:05:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2019-11-15 22:05:43,960 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:05:43,960 INFO L380 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1] [2019-11-15 22:05:44,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:44,164 INFO L410 AbstractCegarLoop]: === Iteration 34 === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 22:05:44,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:05:44,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1252532292, now seen corresponding path program 24 times [2019-11-15 22:05:44,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:05:44,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967707324] [2019-11-15 22:05:44,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:44,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:05:44,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:05:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:05:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4572 backedges. 2072 proven. 1072 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2019-11-15 22:05:46,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967707324] [2019-11-15 22:05:46,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208571237] [2019-11-15 22:05:46,552 INFO L92 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82d584fe-ab94-4171-b273-0680c0604ff3/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:05:46,688 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 33 check-sat command(s) [2019-11-15 22:05:46,688 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-15 22:05:46,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 51 conjunts are in the unsatisfiable core [2019-11-15 22:05:46,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:05:59,593 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:01,653 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:03,741 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:05,873 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:07,947 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:09,981 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:12,082 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:15,505 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:17,954 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_310|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:20,240 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|))) is different from true [2019-11-15 22:06:22,641 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|))) is different from true [2019-11-15 22:06:24,747 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|))) is different from true [2019-11-15 22:06:27,413 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_312| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_312| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_312|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|))) is different from true [2019-11-15 22:06:32,295 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_312| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_312| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_312|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|))) is different from true [2019-11-15 22:06:45,016 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_313| Int) (|v_hanoi_#res_BEFORE_RETURN_312| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_312| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_313|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_313| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_312|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|))) is different from true [2019-11-15 22:07:07,663 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_313| Int) (|v_hanoi_#res_BEFORE_RETURN_312| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_312| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_313| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_312|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|) (<= (div (+ (- |c_hanoi_#res|) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_313|))) is different from true [2019-11-15 22:07:10,471 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_hanoi_#res_BEFORE_RETURN_306| Int) (|v_hanoi_#res_BEFORE_RETURN_305| Int) (|v_hanoi_#res_BEFORE_RETURN_308| Int) (|v_hanoi_#res_BEFORE_RETURN_307| Int) (|v_hanoi_#res_BEFORE_RETURN_309| Int) (|v_hanoi_#res_BEFORE_RETURN_311| Int) (|v_hanoi_#res_BEFORE_RETURN_310| Int) (|v_hanoi_#res_BEFORE_RETURN_313| Int) (|v_hanoi_#res_BEFORE_RETURN_312| Int) (|v_hanoi_#res_BEFORE_RETURN_304| Int) (|v_hanoi_#res_BEFORE_RETURN_303| Int) (|v_hanoi_#res_BEFORE_RETURN_314| Int)) (and (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_312| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_311|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_306| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_305|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_304| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_303|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_313| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_312|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_307| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_306|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_311| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_310|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_310| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_309|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_314| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_313|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_308| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_307|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_305| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_304|) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_303| (- 1)) 1) (- 2)) 1) (<= (div (+ (* |v_hanoi_#res_BEFORE_RETURN_309| (- 1)) 1) (- 2)) |v_hanoi_#res_BEFORE_RETURN_308|) (<= |c_hanoi_#t~ret0| |v_hanoi_#res_BEFORE_RETURN_314|))) is different from true [2019-11-15 22:07:17,191 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-15 22:07:17,392 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:07:17,393 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:851) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:580) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 42 more [2019-11-15 22:07:17,396 INFO L168 Benchmark]: Toolchain (without parser) took 134849.91 ms. Allocated memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: 1.2 GB). Free memory was 946.1 MB in the beginning and 1.3 GB in the end (delta: -382.8 MB). Peak memory consumption was 782.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:07:17,397 INFO L168 Benchmark]: CDTParser took 3.65 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:07:17,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:07:17,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.95 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. [2019-11-15 22:07:17,397 INFO L168 Benchmark]: Boogie Preprocessor took 16.58 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. [2019-11-15 22:07:17,398 INFO L168 Benchmark]: RCFGBuilder took 431.76 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:07:17,398 INFO L168 Benchmark]: TraceAbstraction took 134043.90 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -232.3 MB). Peak memory consumption was 802.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:07:17,400 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.65 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.95 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 16.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 431.76 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 134043.90 ms. Allocated memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: 1.0 GB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -232.3 MB). Peak memory consumption was 802.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...