./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/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 edcc597a46f9ad79563531282ca675b8b1d7c4bf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 03:48:12,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 03:48:12,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 03:48:12,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 03:48:12,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 03:48:12,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 03:48:12,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 03:48:12,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 03:48:12,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 03:48:12,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 03:48:12,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 03:48:12,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 03:48:12,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 03:48:12,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 03:48:12,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 03:48:12,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 03:48:12,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 03:48:12,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 03:48:12,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 03:48:12,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 03:48:12,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 03:48:12,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 03:48:12,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 03:48:12,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 03:48:12,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 03:48:12,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 03:48:12,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 03:48:12,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 03:48:12,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 03:48:12,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 03:48:12,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 03:48:12,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 03:48:12,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 03:48:12,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 03:48:12,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 03:48:12,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 03:48:12,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 03:48:12,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 03:48:12,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 03:48:12,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 03:48:12,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 03:48:12,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-20 03:48:12,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 03:48:12,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 03:48:12,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 03:48:12,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 03:48:12,904 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 03:48:12,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 03:48:12,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 03:48:12,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 03:48:12,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 03:48:12,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 03:48:12,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 03:48:12,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 03:48:12,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 03:48:12,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 03:48:12,907 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 03:48:12,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 03:48:12,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 03:48:12,908 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 03:48:12,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 03:48:12,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 03:48:12,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 03:48:12,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 03:48:12,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 03:48:12,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 03:48:12,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 03:48:12,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 03:48:12,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 03:48:12,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 03:48:12,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 03:48:12,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 03:48:12,910 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_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/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 -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2019-11-20 03:48:13,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 03:48:13,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 03:48:13,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 03:48:13,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 03:48:13,060 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 03:48:13,061 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-20 03:48:13,111 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/data/b5ec4bae0/2fe9f1104d924db38e48287efa03165b/FLAGb12c71358 [2019-11-20 03:48:13,537 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 03:48:13,538 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-20 03:48:13,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/data/b5ec4bae0/2fe9f1104d924db38e48287efa03165b/FLAGb12c71358 [2019-11-20 03:48:13,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/data/b5ec4bae0/2fe9f1104d924db38e48287efa03165b [2019-11-20 03:48:13,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 03:48:13,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 03:48:13,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 03:48:13,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 03:48:13,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 03:48:13,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:48:13" (1/1) ... [2019-11-20 03:48:13,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68656536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:13, skipping insertion in model container [2019-11-20 03:48:13,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:48:13" (1/1) ... [2019-11-20 03:48:13,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 03:48:13,978 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 03:48:14,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:48:14,161 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 03:48:14,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 03:48:14,260 INFO L192 MainTranslator]: Completed translation [2019-11-20 03:48:14,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14 WrapperNode [2019-11-20 03:48:14,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 03:48:14,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 03:48:14,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 03:48:14,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 03:48:14,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 03:48:14,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 03:48:14,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 03:48:14,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 03:48:14,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... [2019-11-20 03:48:14,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 03:48:14,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 03:48:14,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 03:48:14,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 03:48:14,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/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 [2019-11-20 03:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 03:48:14,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 03:48:14,373 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-11-20 03:48:14,374 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-11-20 03:48:14,562 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 03:48:14,563 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 03:48:14,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:48:14 BoogieIcfgContainer [2019-11-20 03:48:14,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 03:48:14,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 03:48:14,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 03:48:14,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 03:48:14,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:48:13" (1/3) ... [2019-11-20 03:48:14,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1429b48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:48:14, skipping insertion in model container [2019-11-20 03:48:14,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:48:14" (2/3) ... [2019-11-20 03:48:14,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1429b48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:48:14, skipping insertion in model container [2019-11-20 03:48:14,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:48:14" (3/3) ... [2019-11-20 03:48:14,583 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2019-11-20 03:48:14,592 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 03:48:14,603 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-20 03:48:14,618 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-20 03:48:14,642 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 03:48:14,642 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 03:48:14,642 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 03:48:14,643 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 03:48:14,643 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 03:48:14,643 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 03:48:14,643 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 03:48:14,643 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 03:48:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-20 03:48:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:48:14,672 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:14,673 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 03:48:14,673 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:14,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:14,678 INFO L82 PathProgramCache]: Analyzing trace with hash 31043311, now seen corresponding path program 1 times [2019-11-20 03:48:14,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:14,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11426063] [2019-11-20 03:48:14,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:14,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11426063] [2019-11-20 03:48:14,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:14,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:48:14,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464378817] [2019-11-20 03:48:14,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:48:14,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:14,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:48:14,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:48:14,847 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2019-11-20 03:48:14,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:14,982 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2019-11-20 03:48:14,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:48:14,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-20 03:48:14,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:14,993 INFO L225 Difference]: With dead ends: 52 [2019-11-20 03:48:14,994 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 03:48:15,003 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:48:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 03:48:15,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2019-11-20 03:48:15,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 03:48:15,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2019-11-20 03:48:15,040 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 5 [2019-11-20 03:48:15,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,040 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2019-11-20 03:48:15,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:48:15,040 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2019-11-20 03:48:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 03:48:15,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 03:48:15,042 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,042 INFO L82 PathProgramCache]: Analyzing trace with hash 31043471, now seen corresponding path program 1 times [2019-11-20 03:48:15,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748652828] [2019-11-20 03:48:15,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748652828] [2019-11-20 03:48:15,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:15,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:48:15,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332630729] [2019-11-20 03:48:15,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:48:15,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:48:15,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:48:15,063 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 3 states. [2019-11-20 03:48:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:15,097 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2019-11-20 03:48:15,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:48:15,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-20 03:48:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:15,100 INFO L225 Difference]: With dead ends: 40 [2019-11-20 03:48:15,101 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 03:48:15,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:48:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 03:48:15,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2019-11-20 03:48:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 03:48:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-11-20 03:48:15,114 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 5 [2019-11-20 03:48:15,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,114 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-11-20 03:48:15,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:48:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-11-20 03:48:15,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:48:15,115 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,115 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:48:15,115 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash 962342709, now seen corresponding path program 1 times [2019-11-20 03:48:15,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799296684] [2019-11-20 03:48:15,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799296684] [2019-11-20 03:48:15,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:15,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 03:48:15,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420558935] [2019-11-20 03:48:15,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 03:48:15,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 03:48:15,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:48:15,133 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 3 states. [2019-11-20 03:48:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:15,155 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-11-20 03:48:15,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 03:48:15,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 03:48:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:15,159 INFO L225 Difference]: With dead ends: 39 [2019-11-20 03:48:15,159 INFO L226 Difference]: Without dead ends: 38 [2019-11-20 03:48:15,160 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 03:48:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-20 03:48:15,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2019-11-20 03:48:15,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 03:48:15,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2019-11-20 03:48:15,167 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 6 [2019-11-20 03:48:15,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,168 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2019-11-20 03:48:15,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 03:48:15,168 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2019-11-20 03:48:15,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 03:48:15,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,168 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 03:48:15,169 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,169 INFO L82 PathProgramCache]: Analyzing trace with hash 962347674, now seen corresponding path program 1 times [2019-11-20 03:48:15,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970251784] [2019-11-20 03:48:15,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970251784] [2019-11-20 03:48:15,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:15,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:48:15,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128144874] [2019-11-20 03:48:15,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:48:15,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:48:15,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:48:15,215 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 5 states. [2019-11-20 03:48:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:15,309 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2019-11-20 03:48:15,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:48:15,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-11-20 03:48:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:15,311 INFO L225 Difference]: With dead ends: 50 [2019-11-20 03:48:15,311 INFO L226 Difference]: Without dead ends: 49 [2019-11-20 03:48:15,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 03:48:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-20 03:48:15,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2019-11-20 03:48:15,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 03:48:15,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2019-11-20 03:48:15,334 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 6 [2019-11-20 03:48:15,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,334 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2019-11-20 03:48:15,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:48:15,335 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2019-11-20 03:48:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 03:48:15,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,336 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:15,336 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,337 INFO L82 PathProgramCache]: Analyzing trace with hash -703912792, now seen corresponding path program 1 times [2019-11-20 03:48:15,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095723626] [2019-11-20 03:48:15,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095723626] [2019-11-20 03:48:15,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:15,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 03:48:15,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958397765] [2019-11-20 03:48:15,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 03:48:15,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 03:48:15,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 03:48:15,388 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 5 states. [2019-11-20 03:48:15,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:15,489 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2019-11-20 03:48:15,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 03:48:15,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-20 03:48:15,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:15,491 INFO L225 Difference]: With dead ends: 68 [2019-11-20 03:48:15,491 INFO L226 Difference]: Without dead ends: 67 [2019-11-20 03:48:15,492 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:48:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-11-20 03:48:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2019-11-20 03:48:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 03:48:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2019-11-20 03:48:15,503 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 10 [2019-11-20 03:48:15,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,504 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2019-11-20 03:48:15,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 03:48:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2019-11-20 03:48:15,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 03:48:15,505 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,505 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:15,506 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1217128367, now seen corresponding path program 1 times [2019-11-20 03:48:15,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922269023] [2019-11-20 03:48:15,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922269023] [2019-11-20 03:48:15,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:15,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 03:48:15,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736188802] [2019-11-20 03:48:15,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 03:48:15,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 03:48:15,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:48:15,551 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand 4 states. [2019-11-20 03:48:15,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:15,567 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2019-11-20 03:48:15,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 03:48:15,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-11-20 03:48:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:15,570 INFO L225 Difference]: With dead ends: 58 [2019-11-20 03:48:15,570 INFO L226 Difference]: Without dead ends: 47 [2019-11-20 03:48:15,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 03:48:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-20 03:48:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-11-20 03:48:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-20 03:48:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2019-11-20 03:48:15,578 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 13 [2019-11-20 03:48:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:15,578 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2019-11-20 03:48:15,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 03:48:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2019-11-20 03:48:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 03:48:15,582 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:15,582 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:15,583 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash -843390153, now seen corresponding path program 1 times [2019-11-20 03:48:15,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:15,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801635514] [2019-11-20 03:48:15,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,698 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 03:48:15,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801635514] [2019-11-20 03:48:15,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224343443] [2019-11-20 03:48:15,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/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 [2019-11-20 03:48:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:15,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 03:48:15,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 03:48:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 03:48:15,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 03:48:15,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-11-20 03:48:15,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191356918] [2019-11-20 03:48:15,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-20 03:48:15,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:15,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-20 03:48:15,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2019-11-20 03:48:15,870 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 15 states. [2019-11-20 03:48:16,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:16,219 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2019-11-20 03:48:16,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-20 03:48:16,219 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 18 [2019-11-20 03:48:16,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:16,221 INFO L225 Difference]: With dead ends: 70 [2019-11-20 03:48:16,221 INFO L226 Difference]: Without dead ends: 69 [2019-11-20 03:48:16,222 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2019-11-20 03:48:16,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-11-20 03:48:16,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2019-11-20 03:48:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-20 03:48:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2019-11-20 03:48:16,243 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 18 [2019-11-20 03:48:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:16,243 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2019-11-20 03:48:16,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-20 03:48:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2019-11-20 03:48:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 03:48:16,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:16,245 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 03:48:16,456 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 03:48:16,457 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:16,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:16,457 INFO L82 PathProgramCache]: Analyzing trace with hash -375285934, now seen corresponding path program 1 times [2019-11-20 03:48:16,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:16,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980873530] [2019-11-20 03:48:16,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 03:48:16,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980873530] [2019-11-20 03:48:16,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:16,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 03:48:16,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627354987] [2019-11-20 03:48:16,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 03:48:16,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:16,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 03:48:16,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-20 03:48:16,528 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand 7 states. [2019-11-20 03:48:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:16,709 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2019-11-20 03:48:16,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 03:48:16,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-11-20 03:48:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:16,711 INFO L225 Difference]: With dead ends: 98 [2019-11-20 03:48:16,712 INFO L226 Difference]: Without dead ends: 97 [2019-11-20 03:48:16,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-20 03:48:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-20 03:48:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2019-11-20 03:48:16,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-20 03:48:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2019-11-20 03:48:16,744 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 19 [2019-11-20 03:48:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:16,744 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2019-11-20 03:48:16,745 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 03:48:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2019-11-20 03:48:16,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 03:48:16,747 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 03:48:16,747 INFO L410 BasicCegarLoop]: trace histogram [7, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-20 03:48:16,747 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 03:48:16,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 03:48:16,747 INFO L82 PathProgramCache]: Analyzing trace with hash -50265865, now seen corresponding path program 1 times [2019-11-20 03:48:16,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 03:48:16,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638918430] [2019-11-20 03:48:16,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 03:48:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 03:48:16,885 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-20 03:48:16,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638918430] [2019-11-20 03:48:16,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 03:48:16,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 03:48:16,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57736138] [2019-11-20 03:48:16,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 03:48:16,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 03:48:16,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 03:48:16,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 03:48:16,887 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand 8 states. [2019-11-20 03:48:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 03:48:17,061 INFO L93 Difference]: Finished difference Result 92 states and 120 transitions. [2019-11-20 03:48:17,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-20 03:48:17,063 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2019-11-20 03:48:17,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 03:48:17,064 INFO L225 Difference]: With dead ends: 92 [2019-11-20 03:48:17,064 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 03:48:17,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2019-11-20 03:48:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 03:48:17,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 03:48:17,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 03:48:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 03:48:17,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-11-20 03:48:17,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 03:48:17,069 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 03:48:17,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 03:48:17,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 03:48:17,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 03:48:17,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 03:48:17,369 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,369 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27-3(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27-4(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27-6(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L27-7(lines 27 31) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 03:48:17,370 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 03:48:17,371 INFO L440 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2019-11-20 03:48:17,371 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-20 03:48:17,371 INFO L440 ceAbstractionStarter]: At program point L24(lines 24 32) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-20 03:48:17,371 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,371 INFO L444 ceAbstractionStarter]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2019-11-20 03:48:17,371 INFO L444 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,371 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-20 03:48:17,372 INFO L440 ceAbstractionStarter]: At program point L19-2(line 19) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (not (<= 0 (+ |f91_#in~x| 2147483648))) .cse0 (not (<= |f91_#in~x| 2147483647))) (or (not (<= 91 |f91_#in~x|)) (and .cse0 (<= f91_~x 100)) (not (<= |f91_#in~x| 2147483648))))) [2019-11-20 03:48:17,372 INFO L444 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2019-11-20 03:48:17,372 INFO L444 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-11-20 03:48:17,372 INFO L444 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,372 INFO L440 ceAbstractionStarter]: At program point L19-4(line 19) the Hoare annotation is: (let ((.cse0 (= f91_~x |f91_#in~x|))) (and (or (and .cse0 (<= f91_~x 100)) (not (<= 91 |f91_#in~x|)) (not (<= |f91_#in~x| 2147483648))) (or (not (<= 0 (+ |f91_#in~x| 2147483648))) (not (<= |f91_#in~x| 2147483647)) (and (<= 91 |f91_#t~ret0|) (and (<= |f91_#t~ret0| 2147483648) .cse0))))) [2019-11-20 03:48:17,372 INFO L444 ceAbstractionStarter]: For program point L19-5(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,372 INFO L444 ceAbstractionStarter]: For program point f91Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-20 03:48:17,373 INFO L447 ceAbstractionStarter]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2019-11-20 03:48:17,373 INFO L444 ceAbstractionStarter]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2019-11-20 03:48:17,373 INFO L444 ceAbstractionStarter]: For program point f91Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2019-11-20 03:48:17,373 INFO L444 ceAbstractionStarter]: For program point f91Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,373 INFO L444 ceAbstractionStarter]: For program point f91Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2019-11-20 03:48:17,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 03:48:17 BoogieIcfgContainer [2019-11-20 03:48:17,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 03:48:17,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 03:48:17,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 03:48:17,391 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 03:48:17,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:48:14" (3/4) ... [2019-11-20 03:48:17,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 03:48:17,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2019-11-20 03:48:17,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 03:48:17,405 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 03:48:17,450 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cac5b985-b809-4ba9-92d4-8f3ea941ab7c/bin/uautomizer/witness.graphml [2019-11-20 03:48:17,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 03:48:17,452 INFO L168 Benchmark]: Toolchain (without parser) took 3506.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:48:17,453 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 03:48:17,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:17,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.90 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. [2019-11-20 03:48:17,454 INFO L168 Benchmark]: Boogie Preprocessor took 27.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:17,454 INFO L168 Benchmark]: RCFGBuilder took 238.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:17,455 INFO L168 Benchmark]: TraceAbstraction took 2825.38 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: 12.9 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:17,455 INFO L168 Benchmark]: Witness Printer took 59.53 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-20 03:48:17,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.90 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 27.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 238.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2825.38 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: 12.9 MB). Peak memory consumption was 248.4 MB. Max. memory is 11.5 GB. * Witness Printer took 59.53 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 6 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 9, TraceHistogramMax: 7, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 177 SDtfs, 230 SDslu, 295 SDs, 0 SdLazy, 434 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 57 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 59 PreInvPairs, 60 NumberOfFragments, 83 HoareAnnotationTreeSize, 59 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 313 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 6147 SizeOfPredicates, 4 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 94/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...