./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add-2.i --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_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 6af52310ec13e6e7a94146d05f9e904086453aae .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:27:20,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:27:20,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:27:20,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:27:20,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:27:20,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:27:20,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:27:20,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:27:20,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:27:20,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:27:20,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:27:20,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:27:20,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:27:20,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:27:20,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:27:20,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:27:20,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:27:20,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:27:20,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:27:20,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:27:20,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:27:20,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:27:20,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:27:20,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:27:20,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:27:20,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:27:20,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:27:20,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:27:20,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:27:20,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:27:20,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:27:20,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:27:20,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:27:20,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:27:20,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:27:20,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:27:20,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:27:20,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:27:20,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:27:20,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:27:20,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:27:20,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-15 23:27:20,806 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:27:20,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:27:20,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:27:20,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:27:20,807 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:27:20,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:27:20,808 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:27:20,808 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:27:20,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:27:20,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:27:20,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:27:20,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:27:20,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:27:20,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:27:20,815 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 23:27:20,815 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:27:20,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:27:20,816 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:27:20,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:27:20,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:27:20,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:27:20,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:27:20,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:27:20,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:27:20,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:27:20,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:27:20,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:27:20,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:27:20,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:27:20,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:27:20,820 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_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 -> 6af52310ec13e6e7a94146d05f9e904086453aae [2019-11-15 23:27:20,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:27:20,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:27:20,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:27:20,880 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:27:20,880 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:27:20,884 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/../../sv-benchmarks/c/bitvector/byte_add-2.i [2019-11-15 23:27:20,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/data/41cf62f93/7e6c6c5fa37943b8b2495b7a34387b17/FLAG29cd2a836 [2019-11-15 23:27:21,372 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:27:21,372 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/sv-benchmarks/c/bitvector/byte_add-2.i [2019-11-15 23:27:21,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/data/41cf62f93/7e6c6c5fa37943b8b2495b7a34387b17/FLAG29cd2a836 [2019-11-15 23:27:21,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/bin/uautomizer/data/41cf62f93/7e6c6c5fa37943b8b2495b7a34387b17 [2019-11-15 23:27:21,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:27:21,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:27:21,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:27:21,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:27:21,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:27:21,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40324b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21, skipping insertion in model container [2019-11-15 23:27:21,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,424 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:27:21,456 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:27:21,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:27:21,760 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:27:21,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:27:21,804 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:27:21,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21 WrapperNode [2019-11-15 23:27:21,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:27:21,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:27:21,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:27:21,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:27:21,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:27:21,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:27:21,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:27:21,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:27:21,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... [2019-11-15 23:27:21,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:27:21,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:27:21,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:27:21,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:27:21,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:27:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:27:22,418 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:27:22,418 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-15 23:27:22,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:22 BoogieIcfgContainer [2019-11-15 23:27:22,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:27:22,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:27:22,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:27:22,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:27:22,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:27:21" (1/3) ... [2019-11-15 23:27:22,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ddc761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:27:22, skipping insertion in model container [2019-11-15 23:27:22,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:27:21" (2/3) ... [2019-11-15 23:27:22,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ddc761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:27:22, skipping insertion in model container [2019-11-15 23:27:22,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:22" (3/3) ... [2019-11-15 23:27:22,431 INFO L109 eAbstractionObserver]: Analyzing ICFG byte_add-2.i [2019-11-15 23:27:22,440 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:27:22,449 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2019-11-15 23:27:22,458 INFO L249 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2019-11-15 23:27:22,483 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:27:22,483 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:27:22,483 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:27:22,484 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:27:22,484 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:27:22,484 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:27:22,484 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:27:22,484 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:27:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-15 23:27:22,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:27:22,511 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:22,512 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:27:22,517 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:22,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:22,522 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-15 23:27:22,528 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:22,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748787668] [2019-11-15 23:27:22,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:22,529 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:22,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:22,630 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 23:27:22,631 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748787668] [2019-11-15 23:27:22,632 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:22,632 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 23:27:22,632 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220248738] [2019-11-15 23:27:22,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:27:22,637 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:22,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:27:22,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:27:22,651 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-15 23:27:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:22,671 INFO L93 Difference]: Finished difference Result 134 states and 176 transitions. [2019-11-15 23:27:22,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:27:22,673 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 3 [2019-11-15 23:27:22,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:22,684 INFO L225 Difference]: With dead ends: 134 [2019-11-15 23:27:22,684 INFO L226 Difference]: Without dead ends: 68 [2019-11-15 23:27:22,687 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:27:22,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-15 23:27:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-15 23:27:22,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-15 23:27:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2019-11-15 23:27:22,725 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 3 [2019-11-15 23:27:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:22,725 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2019-11-15 23:27:22,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:27:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2019-11-15 23:27:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:27:22,726 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:22,727 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:22,728 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:22,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1126401592, now seen corresponding path program 1 times [2019-11-15 23:27:22,728 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:22,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374715986] [2019-11-15 23:27:22,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:22,729 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:22,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:22,847 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 23:27:22,848 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374715986] [2019-11-15 23:27:22,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:22,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:27:22,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165994596] [2019-11-15 23:27:22,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:27:22,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:22,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:27:22,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:27:22,851 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand 3 states. [2019-11-15 23:27:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:23,105 INFO L93 Difference]: Finished difference Result 144 states and 211 transitions. [2019-11-15 23:27:23,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:27:23,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-15 23:27:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:23,108 INFO L225 Difference]: With dead ends: 144 [2019-11-15 23:27:23,109 INFO L226 Difference]: Without dead ends: 97 [2019-11-15 23:27:23,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:27:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-15 23:27:23,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2019-11-15 23:27:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-15 23:27:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 123 transitions. [2019-11-15 23:27:23,135 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 123 transitions. Word has length 12 [2019-11-15 23:27:23,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:23,136 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 123 transitions. [2019-11-15 23:27:23,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:27:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2019-11-15 23:27:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:27:23,138 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:23,138 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:23,140 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:23,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:23,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1247347973, now seen corresponding path program 1 times [2019-11-15 23:27:23,141 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:23,142 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172914741] [2019-11-15 23:27:23,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:23,143 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:23,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:23,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:23,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172914741] [2019-11-15 23:27:23,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:23,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:27:23,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557982930] [2019-11-15 23:27:23,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:27:23,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:23,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:27:23,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:27:23,286 INFO L87 Difference]: Start difference. First operand 93 states and 123 transitions. Second operand 5 states. [2019-11-15 23:27:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:23,716 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2019-11-15 23:27:23,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:23,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-15 23:27:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:23,719 INFO L225 Difference]: With dead ends: 237 [2019-11-15 23:27:23,719 INFO L226 Difference]: Without dead ends: 173 [2019-11-15 23:27:23,720 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 23:27:23,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-15 23:27:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 106. [2019-11-15 23:27:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-15 23:27:23,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 139 transitions. [2019-11-15 23:27:23,742 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 139 transitions. Word has length 19 [2019-11-15 23:27:23,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:23,743 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 139 transitions. [2019-11-15 23:27:23,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:27:23,743 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 139 transitions. [2019-11-15 23:27:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 23:27:23,745 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:23,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:23,749 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:23,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:23,750 INFO L82 PathProgramCache]: Analyzing trace with hash 630219950, now seen corresponding path program 1 times [2019-11-15 23:27:23,750 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:23,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608334067] [2019-11-15 23:27:23,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:23,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:23,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:23,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608334067] [2019-11-15 23:27:23,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:23,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:27:23,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208871359] [2019-11-15 23:27:23,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:27:23,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:23,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:27:23,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:27:23,882 INFO L87 Difference]: Start difference. First operand 106 states and 139 transitions. Second operand 5 states. [2019-11-15 23:27:24,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:24,300 INFO L93 Difference]: Finished difference Result 236 states and 314 transitions. [2019-11-15 23:27:24,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:24,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-15 23:27:24,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:24,303 INFO L225 Difference]: With dead ends: 236 [2019-11-15 23:27:24,303 INFO L226 Difference]: Without dead ends: 179 [2019-11-15 23:27:24,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 23:27:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-15 23:27:24,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 119. [2019-11-15 23:27:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-15 23:27:24,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions. [2019-11-15 23:27:24,318 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 22 [2019-11-15 23:27:24,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:24,319 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions. [2019-11-15 23:27:24,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:27:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions. [2019-11-15 23:27:24,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:27:24,321 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:24,321 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:24,322 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:24,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:24,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1393084960, now seen corresponding path program 1 times [2019-11-15 23:27:24,327 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:24,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056718828] [2019-11-15 23:27:24,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:24,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:24,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:24,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056718828] [2019-11-15 23:27:24,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569342157] [2019-11-15 23:27:24,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:24,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:27:24,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:24,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:27:24,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2019-11-15 23:27:24,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362924159] [2019-11-15 23:27:24,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:27:24,562 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:24,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:27:24,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:27:24,563 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand 4 states. [2019-11-15 23:27:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:24,857 INFO L93 Difference]: Finished difference Result 215 states and 306 transitions. [2019-11-15 23:27:24,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:24,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 23:27:24,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:24,860 INFO L225 Difference]: With dead ends: 215 [2019-11-15 23:27:24,860 INFO L226 Difference]: Without dead ends: 168 [2019-11-15 23:27:24,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:27:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-15 23:27:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 144. [2019-11-15 23:27:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-15 23:27:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 182 transitions. [2019-11-15 23:27:24,885 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 182 transitions. Word has length 25 [2019-11-15 23:27:24,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:24,886 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 182 transitions. [2019-11-15 23:27:24,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:27:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 182 transitions. [2019-11-15 23:27:24,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:27:24,894 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:24,894 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:25,105 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:27:25,106 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:25,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:25,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1548482839, now seen corresponding path program 1 times [2019-11-15 23:27:25,107 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:25,107 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908243648] [2019-11-15 23:27:25,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:25,107 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:25,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:25,216 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:25,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908243648] [2019-11-15 23:27:25,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469260123] [2019-11-15 23:27:25,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:25,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:27:25,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:25,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-15 23:27:25,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:27:25,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2019-11-15 23:27:25,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950372210] [2019-11-15 23:27:25,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:27:25,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:25,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:27:25,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:27:25,314 INFO L87 Difference]: Start difference. First operand 144 states and 182 transitions. Second operand 4 states. [2019-11-15 23:27:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:25,847 INFO L93 Difference]: Finished difference Result 289 states and 390 transitions. [2019-11-15 23:27:25,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:25,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-15 23:27:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:25,849 INFO L225 Difference]: With dead ends: 289 [2019-11-15 23:27:25,849 INFO L226 Difference]: Without dead ends: 197 [2019-11-15 23:27:25,850 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:27:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-11-15 23:27:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 169. [2019-11-15 23:27:25,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-15 23:27:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 211 transitions. [2019-11-15 23:27:25,860 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 211 transitions. Word has length 32 [2019-11-15 23:27:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:25,860 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 211 transitions. [2019-11-15 23:27:25,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:27:25,861 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 211 transitions. [2019-11-15 23:27:25,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-15 23:27:25,863 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:25,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:26,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:27:26,070 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:26,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:26,070 INFO L82 PathProgramCache]: Analyzing trace with hash -466613948, now seen corresponding path program 1 times [2019-11-15 23:27:26,070 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:26,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475223488] [2019-11-15 23:27:26,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:26,071 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:26,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:26,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:27:26,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475223488] [2019-11-15 23:27:26,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730038261] [2019-11-15 23:27:26,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:26,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 23:27:26,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-15 23:27:26,271 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:27:26,271 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2019-11-15 23:27:26,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109661467] [2019-11-15 23:27:26,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:27:26,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:26,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:27:26,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:26,272 INFO L87 Difference]: Start difference. First operand 169 states and 211 transitions. Second operand 4 states. [2019-11-15 23:27:26,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:26,891 INFO L93 Difference]: Finished difference Result 339 states and 446 transitions. [2019-11-15 23:27:26,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:26,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-11-15 23:27:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:26,893 INFO L225 Difference]: With dead ends: 339 [2019-11-15 23:27:26,893 INFO L226 Difference]: Without dead ends: 222 [2019-11-15 23:27:26,893 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-11-15 23:27:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 194. [2019-11-15 23:27:26,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-11-15 23:27:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 240 transitions. [2019-11-15 23:27:26,904 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 240 transitions. Word has length 39 [2019-11-15 23:27:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:26,904 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 240 transitions. [2019-11-15 23:27:26,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:27:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 240 transitions. [2019-11-15 23:27:26,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-15 23:27:26,906 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:26,906 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:27,109 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:27:27,110 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash -811417915, now seen corresponding path program 1 times [2019-11-15 23:27:27,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:27,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291358898] [2019-11-15 23:27:27,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-15 23:27:27,178 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291358898] [2019-11-15 23:27:27,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:27,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:27:27,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807398093] [2019-11-15 23:27:27,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:27:27,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:27,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:27:27,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:27:27,180 INFO L87 Difference]: Start difference. First operand 194 states and 240 transitions. Second operand 3 states. [2019-11-15 23:27:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:27,188 INFO L93 Difference]: Finished difference Result 231 states and 281 transitions. [2019-11-15 23:27:27,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:27:27,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-11-15 23:27:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:27,190 INFO L225 Difference]: With dead ends: 231 [2019-11-15 23:27:27,190 INFO L226 Difference]: Without dead ends: 168 [2019-11-15 23:27:27,191 INFO L600 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 [2019-11-15 23:27:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-15 23:27:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-15 23:27:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-15 23:27:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2019-11-15 23:27:27,198 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 46 [2019-11-15 23:27:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:27,198 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2019-11-15 23:27:27,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:27:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2019-11-15 23:27:27,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-15 23:27:27,200 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:27,200 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:27,201 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:27,201 INFO L82 PathProgramCache]: Analyzing trace with hash 669122321, now seen corresponding path program 1 times [2019-11-15 23:27:27,202 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:27,202 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377505798] [2019-11-15 23:27:27,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,202 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-11-15 23:27:27,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377505798] [2019-11-15 23:27:27,318 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:27,318 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:27:27,318 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442998826] [2019-11-15 23:27:27,319 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:27:27,319 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:27,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:27:27,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:27:27,319 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand 5 states. [2019-11-15 23:27:27,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:27,576 INFO L93 Difference]: Finished difference Result 464 states and 572 transitions. [2019-11-15 23:27:27,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:27:27,577 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-15 23:27:27,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:27,579 INFO L225 Difference]: With dead ends: 464 [2019-11-15 23:27:27,579 INFO L226 Difference]: Without dead ends: 346 [2019-11-15 23:27:27,580 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2019-11-15 23:27:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 208. [2019-11-15 23:27:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-11-15 23:27:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 255 transitions. [2019-11-15 23:27:27,589 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 255 transitions. Word has length 58 [2019-11-15 23:27:27,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:27,590 INFO L462 AbstractCegarLoop]: Abstraction has 208 states and 255 transitions. [2019-11-15 23:27:27,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:27:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 255 transitions. [2019-11-15 23:27:27,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-11-15 23:27:27,591 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:27,591 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:27,592 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:27,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2018692145, now seen corresponding path program 1 times [2019-11-15 23:27:27,592 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:27,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163086717] [2019-11-15 23:27:27,593 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,593 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:27,673 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-15 23:27:27,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163086717] [2019-11-15 23:27:27,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:27,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:27:27,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965786003] [2019-11-15 23:27:27,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:27:27,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:27,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:27:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:27:27,675 INFO L87 Difference]: Start difference. First operand 208 states and 255 transitions. Second operand 4 states. [2019-11-15 23:27:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:27,805 INFO L93 Difference]: Finished difference Result 464 states and 568 transitions. [2019-11-15 23:27:27,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:27,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2019-11-15 23:27:27,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:27,807 INFO L225 Difference]: With dead ends: 464 [2019-11-15 23:27:27,807 INFO L226 Difference]: Without dead ends: 306 [2019-11-15 23:27:27,808 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 23:27:27,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-11-15 23:27:27,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 224. [2019-11-15 23:27:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-11-15 23:27:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 282 transitions. [2019-11-15 23:27:27,817 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 282 transitions. Word has length 61 [2019-11-15 23:27:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:27,817 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 282 transitions. [2019-11-15 23:27:27,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:27:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 282 transitions. [2019-11-15 23:27:27,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-15 23:27:27,818 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:27,819 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:27,819 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:27,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:27,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1454389477, now seen corresponding path program 1 times [2019-11-15 23:27:27,820 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:27,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879520045] [2019-11-15 23:27:27,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:27,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 23:27:27,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879520045] [2019-11-15 23:27:27,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:27,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:27:27,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659455196] [2019-11-15 23:27:27,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:27:27,970 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:27,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:27:27,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:27:27,971 INFO L87 Difference]: Start difference. First operand 224 states and 282 transitions. Second operand 8 states. [2019-11-15 23:27:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:28,589 INFO L93 Difference]: Finished difference Result 673 states and 859 transitions. [2019-11-15 23:27:28,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:27:28,589 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2019-11-15 23:27:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:28,592 INFO L225 Difference]: With dead ends: 673 [2019-11-15 23:27:28,592 INFO L226 Difference]: Without dead ends: 491 [2019-11-15 23:27:28,593 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:27:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2019-11-15 23:27:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 431. [2019-11-15 23:27:28,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-11-15 23:27:28,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 545 transitions. [2019-11-15 23:27:28,617 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 545 transitions. Word has length 67 [2019-11-15 23:27:28,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:28,618 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 545 transitions. [2019-11-15 23:27:28,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:27:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 545 transitions. [2019-11-15 23:27:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-15 23:27:28,620 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:28,621 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:28,621 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:28,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2083812095, now seen corresponding path program 1 times [2019-11-15 23:27:28,622 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:28,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095171028] [2019-11-15 23:27:28,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:28,623 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:28,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-15 23:27:28,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095171028] [2019-11-15 23:27:28,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691865643] [2019-11-15 23:27:28,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:28,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:27:28,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:28,937 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-15 23:27:28,938 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 23:27:28,938 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 9 [2019-11-15 23:27:28,938 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114869017] [2019-11-15 23:27:28,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:27:28,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:27:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:27:28,942 INFO L87 Difference]: Start difference. First operand 431 states and 545 transitions. Second operand 4 states. [2019-11-15 23:27:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:29,142 INFO L93 Difference]: Finished difference Result 1143 states and 1435 transitions. [2019-11-15 23:27:29,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 23:27:29,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2019-11-15 23:27:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:29,148 INFO L225 Difference]: With dead ends: 1143 [2019-11-15 23:27:29,148 INFO L226 Difference]: Without dead ends: 721 [2019-11-15 23:27:29,149 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:27:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-11-15 23:27:29,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 571. [2019-11-15 23:27:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-11-15 23:27:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 725 transitions. [2019-11-15 23:27:29,176 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 725 transitions. Word has length 67 [2019-11-15 23:27:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:29,176 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 725 transitions. [2019-11-15 23:27:29,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:27:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 725 transitions. [2019-11-15 23:27:29,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-15 23:27:29,181 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:29,181 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:29,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:27:29,394 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:29,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:29,394 INFO L82 PathProgramCache]: Analyzing trace with hash 642833928, now seen corresponding path program 1 times [2019-11-15 23:27:29,394 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:29,394 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263391081] [2019-11-15 23:27:29,394 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:29,395 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:29,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 23:27:29,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263391081] [2019-11-15 23:27:29,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:29,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:27:29,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463804861] [2019-11-15 23:27:29,599 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:27:29,600 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:29,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:27:29,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:27:29,601 INFO L87 Difference]: Start difference. First operand 571 states and 725 transitions. Second operand 8 states. [2019-11-15 23:27:30,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:30,166 INFO L93 Difference]: Finished difference Result 1452 states and 1834 transitions. [2019-11-15 23:27:30,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:27:30,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2019-11-15 23:27:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:30,172 INFO L225 Difference]: With dead ends: 1452 [2019-11-15 23:27:30,172 INFO L226 Difference]: Without dead ends: 834 [2019-11-15 23:27:30,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=78, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:27:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-11-15 23:27:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 728. [2019-11-15 23:27:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-11-15 23:27:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 922 transitions. [2019-11-15 23:27:30,197 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 922 transitions. Word has length 67 [2019-11-15 23:27:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:30,198 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 922 transitions. [2019-11-15 23:27:30,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:27:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 922 transitions. [2019-11-15 23:27:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-15 23:27:30,199 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:30,199 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:30,203 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:30,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1201027011, now seen corresponding path program 1 times [2019-11-15 23:27:30,204 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:30,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532427529] [2019-11-15 23:27:30,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:30,204 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:30,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 39 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-15 23:27:30,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532427529] [2019-11-15 23:27:30,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634530061] [2019-11-15 23:27:30,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d70dc059-db0c-41a4-818c-5d9c4f93f904/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 23:27:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:30,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:27:30,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:27:30,397 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-15 23:27:30,397 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 23:27:30,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2019-11-15 23:27:30,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63667093] [2019-11-15 23:27:30,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:27:30,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:30,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:27:30,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:30,398 INFO L87 Difference]: Start difference. First operand 728 states and 922 transitions. Second operand 7 states. [2019-11-15 23:27:31,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:31,470 INFO L93 Difference]: Finished difference Result 4208 states and 5218 transitions. [2019-11-15 23:27:31,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-15 23:27:31,477 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-11-15 23:27:31,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:31,494 INFO L225 Difference]: With dead ends: 4208 [2019-11-15 23:27:31,494 INFO L226 Difference]: Without dead ends: 3406 [2019-11-15 23:27:31,497 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2019-11-15 23:27:31,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2019-11-15 23:27:31,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 1667. [2019-11-15 23:27:31,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1667 states. [2019-11-15 23:27:31,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2302 transitions. [2019-11-15 23:27:31,566 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2302 transitions. Word has length 73 [2019-11-15 23:27:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:31,567 INFO L462 AbstractCegarLoop]: Abstraction has 1667 states and 2302 transitions. [2019-11-15 23:27:31,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:27:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2302 transitions. [2019-11-15 23:27:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-11-15 23:27:31,570 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:31,570 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:31,774 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 23:27:31,774 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:31,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:31,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1090909143, now seen corresponding path program 1 times [2019-11-15 23:27:31,775 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:31,775 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644825098] [2019-11-15 23:27:31,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:31,775 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:31,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-11-15 23:27:31,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644825098] [2019-11-15 23:27:31,917 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:31,917 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:27:31,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530600661] [2019-11-15 23:27:31,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:27:31,918 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:31,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:27:31,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:31,919 INFO L87 Difference]: Start difference. First operand 1667 states and 2302 transitions. Second operand 7 states. [2019-11-15 23:27:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:32,636 INFO L93 Difference]: Finished difference Result 5333 states and 7297 transitions. [2019-11-15 23:27:32,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:27:32,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-11-15 23:27:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:32,656 INFO L225 Difference]: With dead ends: 5333 [2019-11-15 23:27:32,657 INFO L226 Difference]: Without dead ends: 3444 [2019-11-15 23:27:32,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:27:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2019-11-15 23:27:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 3114. [2019-11-15 23:27:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3114 states. [2019-11-15 23:27:32,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 4234 transitions. [2019-11-15 23:27:32,753 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 4234 transitions. Word has length 79 [2019-11-15 23:27:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:32,753 INFO L462 AbstractCegarLoop]: Abstraction has 3114 states and 4234 transitions. [2019-11-15 23:27:32,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:27:32,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 4234 transitions. [2019-11-15 23:27:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-11-15 23:27:32,756 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:32,756 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:32,757 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:32,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:32,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1286610050, now seen corresponding path program 1 times [2019-11-15 23:27:32,757 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:32,758 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481434404] [2019-11-15 23:27:32,758 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:32,758 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:32,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-11-15 23:27:32,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481434404] [2019-11-15 23:27:32,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:32,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:27:32,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074441693] [2019-11-15 23:27:32,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:27:32,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:32,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:27:32,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:27:32,916 INFO L87 Difference]: Start difference. First operand 3114 states and 4234 transitions. Second operand 7 states. [2019-11-15 23:27:33,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:33,592 INFO L93 Difference]: Finished difference Result 5900 states and 7876 transitions. [2019-11-15 23:27:33,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 23:27:33,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-11-15 23:27:33,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:33,611 INFO L225 Difference]: With dead ends: 5900 [2019-11-15 23:27:33,611 INFO L226 Difference]: Without dead ends: 3834 [2019-11-15 23:27:33,614 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:27:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2019-11-15 23:27:33,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3689. [2019-11-15 23:27:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3689 states. [2019-11-15 23:27:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3689 states to 3689 states and 4985 transitions. [2019-11-15 23:27:33,715 INFO L78 Accepts]: Start accepts. Automaton has 3689 states and 4985 transitions. Word has length 79 [2019-11-15 23:27:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:33,716 INFO L462 AbstractCegarLoop]: Abstraction has 3689 states and 4985 transitions. [2019-11-15 23:27:33,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:27:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3689 states and 4985 transitions. [2019-11-15 23:27:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-11-15 23:27:33,719 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:33,720 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:33,721 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:33,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:33,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2026749083, now seen corresponding path program 1 times [2019-11-15 23:27:33,722 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:33,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495619364] [2019-11-15 23:27:33,722 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:33,722 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:33,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-11-15 23:27:33,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495619364] [2019-11-15 23:27:33,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:33,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:27:33,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827525884] [2019-11-15 23:27:33,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:27:33,880 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:33,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:27:33,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:27:33,881 INFO L87 Difference]: Start difference. First operand 3689 states and 4985 transitions. Second operand 8 states. [2019-11-15 23:27:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:34,941 INFO L93 Difference]: Finished difference Result 8371 states and 11243 transitions. [2019-11-15 23:27:34,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 23:27:34,942 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-11-15 23:27:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:34,966 INFO L225 Difference]: With dead ends: 8371 [2019-11-15 23:27:34,966 INFO L226 Difference]: Without dead ends: 4434 [2019-11-15 23:27:34,972 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:27:34,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4434 states. [2019-11-15 23:27:35,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4434 to 4255. [2019-11-15 23:27:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2019-11-15 23:27:35,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 5701 transitions. [2019-11-15 23:27:35,103 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 5701 transitions. Word has length 82 [2019-11-15 23:27:35,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:35,104 INFO L462 AbstractCegarLoop]: Abstraction has 4255 states and 5701 transitions. [2019-11-15 23:27:35,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:27:35,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 5701 transitions. [2019-11-15 23:27:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-11-15 23:27:35,109 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:35,109 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:35,109 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:35,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:35,110 INFO L82 PathProgramCache]: Analyzing trace with hash -56372555, now seen corresponding path program 1 times [2019-11-15 23:27:35,110 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:35,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616450043] [2019-11-15 23:27:35,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:35,111 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:35,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-11-15 23:27:35,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616450043] [2019-11-15 23:27:35,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:35,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:27:35,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199112153] [2019-11-15 23:27:35,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:27:35,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:35,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:27:35,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:27:35,363 INFO L87 Difference]: Start difference. First operand 4255 states and 5701 transitions. Second operand 8 states. [2019-11-15 23:27:36,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:36,334 INFO L93 Difference]: Finished difference Result 7575 states and 10086 transitions. [2019-11-15 23:27:36,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 23:27:36,335 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2019-11-15 23:27:36,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:36,360 INFO L225 Difference]: With dead ends: 7575 [2019-11-15 23:27:36,360 INFO L226 Difference]: Without dead ends: 4976 [2019-11-15 23:27:36,366 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2019-11-15 23:27:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2019-11-15 23:27:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4724. [2019-11-15 23:27:36,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4724 states. [2019-11-15 23:27:36,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4724 states to 4724 states and 6305 transitions. [2019-11-15 23:27:36,493 INFO L78 Accepts]: Start accepts. Automaton has 4724 states and 6305 transitions. Word has length 82 [2019-11-15 23:27:36,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:36,493 INFO L462 AbstractCegarLoop]: Abstraction has 4724 states and 6305 transitions. [2019-11-15 23:27:36,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:27:36,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4724 states and 6305 transitions. [2019-11-15 23:27:36,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-15 23:27:36,498 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:36,498 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:36,498 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:36,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1381975007, now seen corresponding path program 1 times [2019-11-15 23:27:36,499 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:36,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744583688] [2019-11-15 23:27:36,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:36,500 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:36,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-11-15 23:27:36,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744583688] [2019-11-15 23:27:36,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:36,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:27:36,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529777367] [2019-11-15 23:27:36,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:27:36,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:36,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:27:36,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:27:36,653 INFO L87 Difference]: Start difference. First operand 4724 states and 6305 transitions. Second operand 9 states. [2019-11-15 23:27:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:37,870 INFO L93 Difference]: Finished difference Result 5701 states and 7556 transitions. [2019-11-15 23:27:37,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:27:37,871 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-11-15 23:27:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:37,901 INFO L225 Difference]: With dead ends: 5701 [2019-11-15 23:27:37,908 INFO L226 Difference]: Without dead ends: 3342 [2019-11-15 23:27:37,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:27:37,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2019-11-15 23:27:37,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 3188. [2019-11-15 23:27:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3188 states. [2019-11-15 23:27:37,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 4192 transitions. [2019-11-15 23:27:37,985 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 4192 transitions. Word has length 84 [2019-11-15 23:27:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:37,986 INFO L462 AbstractCegarLoop]: Abstraction has 3188 states and 4192 transitions. [2019-11-15 23:27:37,986 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:27:37,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 4192 transitions. [2019-11-15 23:27:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-15 23:27:37,989 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:37,989 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:37,990 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:37,990 INFO L82 PathProgramCache]: Analyzing trace with hash -205126895, now seen corresponding path program 1 times [2019-11-15 23:27:37,990 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:37,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349295395] [2019-11-15 23:27:37,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:37,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:37,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:27:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-11-15 23:27:38,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349295395] [2019-11-15 23:27:38,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:27:38,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-15 23:27:38,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548265596] [2019-11-15 23:27:38,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 23:27:38,171 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:27:38,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 23:27:38,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:27:38,172 INFO L87 Difference]: Start difference. First operand 3188 states and 4192 transitions. Second operand 9 states. [2019-11-15 23:27:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:27:39,144 INFO L93 Difference]: Finished difference Result 4175 states and 5459 transitions. [2019-11-15 23:27:39,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:27:39,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-11-15 23:27:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:27:39,149 INFO L225 Difference]: With dead ends: 4175 [2019-11-15 23:27:39,149 INFO L226 Difference]: Without dead ends: 1834 [2019-11-15 23:27:39,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-11-15 23:27:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2019-11-15 23:27:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1772. [2019-11-15 23:27:39,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1772 states. [2019-11-15 23:27:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2299 transitions. [2019-11-15 23:27:39,190 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2299 transitions. Word has length 84 [2019-11-15 23:27:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:27:39,190 INFO L462 AbstractCegarLoop]: Abstraction has 1772 states and 2299 transitions. [2019-11-15 23:27:39,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 23:27:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2299 transitions. [2019-11-15 23:27:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-11-15 23:27:39,193 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:27:39,193 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:27:39,193 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 23:27:39,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:27:39,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1356500467, now seen corresponding path program 1 times [2019-11-15 23:27:39,194 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:27:39,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692222799] [2019-11-15 23:27:39,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:39,194 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:27:39,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:27:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:27:39,327 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:27:39,327 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:27:39,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:27:39 BoogieIcfgContainer [2019-11-15 23:27:39,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:27:39,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:27:39,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:27:39,386 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:27:39,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:27:22" (3/4) ... [2019-11-15 23:27:39,390 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:27:39,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:27:39,392 INFO L168 Benchmark]: Toolchain (without parser) took 17986.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 300.9 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -88.5 MB). Peak memory consumption was 212.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:39,392 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:39,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:39,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:39,394 INFO L168 Benchmark]: Boogie Preprocessor took 34.42 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 23:27:39,395 INFO L168 Benchmark]: RCFGBuilder took 534.10 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:39,399 INFO L168 Benchmark]: TraceAbstraction took 16965.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.2 MB). Peak memory consumption was 216.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:27:39,400 INFO L168 Benchmark]: Witness Printer took 4.19 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:27:39,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 396.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.42 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 534.10 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16965.39 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.2 MB). Peak memory consumption was 216.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.19 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 77. Possible FailurePath: [L105] unsigned int a, b, r; [L107] a = __VERIFIER_nondet_uint() [L108] b = __VERIFIER_nondet_uint() [L23] unsigned char a0, a1, a2, a3; [L24] unsigned char b0, b1, b2, b3; [L25] unsigned char r0, r1, r2, r3; [L26] unsigned short carry; [L27] unsigned short partial_sum; [L28] unsigned int r; [L29] unsigned char i; [L30] unsigned char na, nb; [L31] a0 = a [L32] a1 = a >> 8 [L33] a2 = a >> 16U [L34] a3 = a >> 24U [L35] b0 = b [L36] b1 = b >> 8U [L37] b2 = b >> 16U [L38] b3 = b >> 24U [L39] na = (unsigned char)4 [L40] COND TRUE a3 == (unsigned char)0 [L41] EXPR na - 1 [L41] na = na - 1 [L42] COND TRUE a2 == (unsigned char)0 [L43] EXPR na - 1 [L43] na = na - 1 [L44] COND TRUE a1 == (unsigned char)0 [L45] EXPR na - 1 [L45] na = na - 1 [L49] nb = (unsigned char)4 [L50] COND FALSE !(b3 == (unsigned char)0) [L59] carry = (unsigned short)0 [L60] i = (unsigned char)0 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND TRUE i < na [L65] COND TRUE i == (unsigned char)0 [L65] EXPR partial_sum + a0 [L65] partial_sum = partial_sum + a0 [L66] COND FALSE !(i == (unsigned char)1) [L67] COND FALSE !(i == (unsigned char)2) [L68] COND FALSE !(i == (unsigned char)3) [L70] COND TRUE i < nb [L71] COND TRUE i == (unsigned char)0 [L71] EXPR partial_sum + b0 [L71] partial_sum = partial_sum + b0 [L72] COND FALSE !(i == (unsigned char)1) [L73] COND FALSE !(i == (unsigned char)2) [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)254) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND TRUE i == (unsigned char)0 [L80] r0 = (unsigned char)partial_sum [L81] COND FALSE !(i == (unsigned char)1) [L82] COND FALSE !(i == (unsigned char)2) [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND FALSE !(i < na) [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND TRUE i == (unsigned char)1 [L72] EXPR partial_sum + b1 [L72] partial_sum = partial_sum + b1 [L73] COND FALSE !(i == (unsigned char)2) [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)254) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND FALSE !(i == (unsigned char)0) [L81] COND TRUE i == (unsigned char)1 [L81] r1 = (unsigned char)partial_sum [L82] COND FALSE !(i == (unsigned char)2) [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND FALSE !(i < na) [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND FALSE !(i == (unsigned char)1) [L73] COND TRUE i == (unsigned char)2 [L73] EXPR partial_sum + b2 [L73] partial_sum = partial_sum + b2 [L74] COND FALSE !(i == (unsigned char)3) [L76] COND TRUE partial_sum > ((unsigned char)254) [L77] partial_sum = partial_sum & ((unsigned char)255) [L78] carry = (unsigned short)1 [L80] COND FALSE !(i == (unsigned char)0) [L81] COND FALSE !(i == (unsigned char)1) [L82] COND TRUE i == (unsigned char)2 [L82] r2 = (unsigned char)partial_sum [L83] COND FALSE !(i == (unsigned char)3) [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L62] partial_sum = carry [L63] carry = (unsigned short)0 [L64] COND FALSE !(i < na) [L70] COND TRUE i < nb [L71] COND FALSE !(i == (unsigned char)0) [L72] COND FALSE !(i == (unsigned char)1) [L73] COND FALSE !(i == (unsigned char)2) [L74] COND TRUE i == (unsigned char)3 [L74] EXPR partial_sum + b3 [L74] partial_sum = partial_sum + b3 [L76] COND FALSE !(partial_sum > ((unsigned char)254)) [L80] COND FALSE !(i == (unsigned char)0) [L81] COND FALSE !(i == (unsigned char)1) [L82] COND FALSE !(i == (unsigned char)2) [L83] COND TRUE i == (unsigned char)3 [L83] r3 = (unsigned char)partial_sum [L85] EXPR i + (unsigned char)1 [L85] i = i + (unsigned char)1 [L61] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L88] COND FALSE !(i < (unsigned char)4) [L97] r1 << 8U [L97] r2 << 16U [L97] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 38 error locations. Result: UNSAFE, OverallTime: 16.8s, OverallIterations: 21, TraceHistogramMax: 4, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2242 SDtfs, 4537 SDslu, 5149 SDs, 0 SdLazy, 6243 SolverSat, 496 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 274 SyntacticMatches, 18 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4724occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 20 MinimizatonAttempts, 3608 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1407 NumberOfCodeBlocks, 1407 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1292 ConstructedInterpolants, 3 QuantifiedInterpolants, 297277 SizeOfPredicates, 7 NumberOfNonLiveVariables, 577 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 25 InterpolantComputations, 19 PerfectInterpolantSequences, 1128/1188 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...