./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 ae0b445eba18f91587d7dc0f5adde2c3f4731247 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 0.2.0-69874e2 [2020-12-01 15:45:15,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:45:15,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:45:15,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:45:15,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:45:15,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:45:15,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:45:15,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:45:15,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:45:15,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:45:15,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:45:15,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:45:15,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:45:15,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:45:15,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:45:15,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:45:15,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:45:15,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:45:15,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:45:15,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:45:15,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:45:15,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:45:15,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:45:15,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:45:15,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:45:15,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:45:15,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:45:15,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:45:15,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:45:15,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:45:15,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:45:15,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:45:15,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:45:15,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:45:15,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:45:15,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:45:15,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:45:15,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:45:15,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:45:15,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:45:15,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:45:15,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-12-01 15:45:15,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:45:15,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:45:15,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:45:15,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:45:15,881 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:45:15,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:45:15,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:45:15,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:45:15,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:45:15,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:45:15,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:45:15,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:45:15,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:45:15,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:45:15,885 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 15:45:15,885 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:45:15,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:45:15,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:45:15,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:45:15,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:45:15,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:45:15,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:45:15,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:45:15,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:45:15,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:45:15,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:45:15,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:45:15,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:45:15,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:45:15,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:45:15,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:45:15,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae0b445eba18f91587d7dc0f5adde2c3f4731247 [2020-12-01 15:45:16,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:45:16,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:45:16,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:45:16,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:45:16,298 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:45:16,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/../../sv-benchmarks/c/bitvector/byte_add_1-2.i [2020-12-01 15:45:16,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/data/29d0669a1/c687b59c5ab04f6ba1752d18fbb64cb7/FLAG818416cb6 [2020-12-01 15:45:16,952 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:45:16,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/sv-benchmarks/c/bitvector/byte_add_1-2.i [2020-12-01 15:45:16,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/data/29d0669a1/c687b59c5ab04f6ba1752d18fbb64cb7/FLAG818416cb6 [2020-12-01 15:45:17,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/data/29d0669a1/c687b59c5ab04f6ba1752d18fbb64cb7 [2020-12-01 15:45:17,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:45:17,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:45:17,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:45:17,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:45:17,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:45:17,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2584e18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17, skipping insertion in model container [2020-12-01 15:45:17,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:45:17,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:45:17,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:45:17,676 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:45:17,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:45:17,756 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:45:17,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17 WrapperNode [2020-12-01 15:45:17,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:45:17,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:45:17,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:45:17,759 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:45:17,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:45:17,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:45:17,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:45:17,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:45:17,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... [2020-12-01 15:45:17,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:45:17,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:45:17,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:45:17,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:45:17,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:45:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:45:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:45:17,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:45:18,726 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:45:18,727 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-01 15:45:18,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:45:18 BoogieIcfgContainer [2020-12-01 15:45:18,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:45:18,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:45:18,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:45:18,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:45:18,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:45:17" (1/3) ... [2020-12-01 15:45:18,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76102e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:45:18, skipping insertion in model container [2020-12-01 15:45:18,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:45:17" (2/3) ... [2020-12-01 15:45:18,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76102e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:45:18, skipping insertion in model container [2020-12-01 15:45:18,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:45:18" (3/3) ... [2020-12-01 15:45:18,741 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add_1-2.i [2020-12-01 15:45:18,755 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:45:18,760 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2020-12-01 15:45:18,772 INFO L253 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2020-12-01 15:45:18,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:45:18,808 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:45:18,808 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:45:18,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:45:18,809 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:45:18,809 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:45:18,809 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:45:18,810 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:45:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-12-01 15:45:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 15:45:18,843 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:18,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-01 15:45:18,846 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:18,854 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-01 15:45:18,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:18,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117841160] [2020-12-01 15:45:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:19,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117841160] [2020-12-01 15:45:19,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:19,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-01 15:45:19,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968292622] [2020-12-01 15:45:19,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:45:19,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:19,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:45:19,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:45:19,075 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-12-01 15:45:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:19,103 INFO L93 Difference]: Finished difference Result 138 states and 182 transitions. [2020-12-01 15:45:19,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:45:19,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-12-01 15:45:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:19,118 INFO L225 Difference]: With dead ends: 138 [2020-12-01 15:45:19,118 INFO L226 Difference]: Without dead ends: 69 [2020-12-01 15:45:19,122 INFO L677 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 [2020-12-01 15:45:19,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-01 15:45:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-12-01 15:45:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-01 15:45:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-12-01 15:45:19,170 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 4 [2020-12-01 15:45:19,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:19,171 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-12-01 15:45:19,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:45:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-12-01 15:45:19,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:45:19,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:19,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:19,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:45:19,175 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:19,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:19,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1944470950, now seen corresponding path program 1 times [2020-12-01 15:45:19,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:19,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11112555] [2020-12-01 15:45:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:19,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11112555] [2020-12-01 15:45:19,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:19,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:45:19,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401596456] [2020-12-01 15:45:19,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:45:19,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:19,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:45:19,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:19,293 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand 3 states. [2020-12-01 15:45:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:19,606 INFO L93 Difference]: Finished difference Result 145 states and 212 transitions. [2020-12-01 15:45:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:45:19,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-01 15:45:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:19,609 INFO L225 Difference]: With dead ends: 145 [2020-12-01 15:45:19,609 INFO L226 Difference]: Without dead ends: 98 [2020-12-01 15:45:19,610 INFO L677 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 [2020-12-01 15:45:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-01 15:45:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-12-01 15:45:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-01 15:45:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-12-01 15:45:19,626 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-12-01 15:45:19,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:19,652 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-12-01 15:45:19,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:45:19,652 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-12-01 15:45:19,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 15:45:19,654 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:19,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:19,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:45:19,655 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash 565405448, now seen corresponding path program 1 times [2020-12-01 15:45:19,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:19,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618076918] [2020-12-01 15:45:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:19,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:45:19,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618076918] [2020-12-01 15:45:19,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:19,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:45:19,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045313528] [2020-12-01 15:45:19,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:19,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:19,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:19,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:45:19,898 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 4 states. [2020-12-01 15:45:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:20,264 INFO L93 Difference]: Finished difference Result 221 states and 296 transitions. [2020-12-01 15:45:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:20,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-01 15:45:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:20,274 INFO L225 Difference]: With dead ends: 221 [2020-12-01 15:45:20,275 INFO L226 Difference]: Without dead ends: 164 [2020-12-01 15:45:20,277 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:45:20,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-01 15:45:20,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 104. [2020-12-01 15:45:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-01 15:45:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2020-12-01 15:45:20,306 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 20 [2020-12-01 15:45:20,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:20,307 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2020-12-01 15:45:20,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:20,307 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-12-01 15:45:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 15:45:20,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:20,310 INFO L422 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] [2020-12-01 15:45:20,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:45:20,311 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:20,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1055427225, now seen corresponding path program 1 times [2020-12-01 15:45:20,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:20,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983324651] [2020-12-01 15:45:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:45:20,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983324651] [2020-12-01 15:45:20,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:20,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:45:20,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203117394] [2020-12-01 15:45:20,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:20,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:20,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:20,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:45:20,479 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand 4 states. [2020-12-01 15:45:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:20,762 INFO L93 Difference]: Finished difference Result 259 states and 340 transitions. [2020-12-01 15:45:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:20,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-01 15:45:20,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:20,766 INFO L225 Difference]: With dead ends: 259 [2020-12-01 15:45:20,766 INFO L226 Difference]: Without dead ends: 194 [2020-12-01 15:45:20,769 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:45:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-12-01 15:45:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 120. [2020-12-01 15:45:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-12-01 15:45:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2020-12-01 15:45:20,789 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 23 [2020-12-01 15:45:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:20,789 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2020-12-01 15:45:20,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2020-12-01 15:45:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 15:45:20,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:20,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:20,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:45:20,801 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:20,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2113419709, now seen corresponding path program 1 times [2020-12-01 15:45:20,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:20,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472863539] [2020-12-01 15:45:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:45:20,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472863539] [2020-12-01 15:45:20,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:20,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:45:20,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296610162] [2020-12-01 15:45:20,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:45:20,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:20,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:45:20,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:20,970 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand 3 states. [2020-12-01 15:45:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:20,978 INFO L93 Difference]: Finished difference Result 192 states and 248 transitions. [2020-12-01 15:45:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:45:20,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-01 15:45:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:20,980 INFO L225 Difference]: With dead ends: 192 [2020-12-01 15:45:20,980 INFO L226 Difference]: Without dead ends: 91 [2020-12-01 15:45:20,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:20,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-12-01 15:45:20,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-12-01 15:45:20,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-01 15:45:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 116 transitions. [2020-12-01 15:45:20,989 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 116 transitions. Word has length 26 [2020-12-01 15:45:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:20,989 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 116 transitions. [2020-12-01 15:45:20,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:45:20,990 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 116 transitions. [2020-12-01 15:45:20,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 15:45:20,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:20,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:20,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:45:20,992 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:20,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:20,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1291653624, now seen corresponding path program 1 times [2020-12-01 15:45:20,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:20,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408802250] [2020-12-01 15:45:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:21,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408802250] [2020-12-01 15:45:21,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:21,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:45:21,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428414934] [2020-12-01 15:45:21,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:45:21,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:21,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:45:21,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:21,085 INFO L87 Difference]: Start difference. First operand 91 states and 116 transitions. Second operand 3 states. [2020-12-01 15:45:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:21,099 INFO L93 Difference]: Finished difference Result 115 states and 149 transitions. [2020-12-01 15:45:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:45:21,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-01 15:45:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:21,101 INFO L225 Difference]: With dead ends: 115 [2020-12-01 15:45:21,101 INFO L226 Difference]: Without dead ends: 102 [2020-12-01 15:45:21,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-12-01 15:45:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-12-01 15:45:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-01 15:45:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 131 transitions. [2020-12-01 15:45:21,121 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 131 transitions. Word has length 32 [2020-12-01 15:45:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:21,122 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 131 transitions. [2020-12-01 15:45:21,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:45:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 131 transitions. [2020-12-01 15:45:21,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 15:45:21,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:21,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:21,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-01 15:45:21,125 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:21,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:21,125 INFO L82 PathProgramCache]: Analyzing trace with hash 280536374, now seen corresponding path program 1 times [2020-12-01 15:45:21,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:21,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209377374] [2020-12-01 15:45:21,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:21,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209377374] [2020-12-01 15:45:21,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429471208] [2020-12-01 15:45:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:21,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:45:21,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:21,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:45:21,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-12-01 15:45:21,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215184425] [2020-12-01 15:45:21,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:21,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:21,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:21,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:45:21,618 INFO L87 Difference]: Start difference. First operand 102 states and 131 transitions. Second operand 4 states. [2020-12-01 15:45:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:21,890 INFO L93 Difference]: Finished difference Result 218 states and 316 transitions. [2020-12-01 15:45:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:21,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-01 15:45:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:21,899 INFO L225 Difference]: With dead ends: 218 [2020-12-01 15:45:21,899 INFO L226 Difference]: Without dead ends: 164 [2020-12-01 15:45:21,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:45:21,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-01 15:45:21,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 137. [2020-12-01 15:45:21,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-12-01 15:45:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 170 transitions. [2020-12-01 15:45:21,923 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 170 transitions. Word has length 32 [2020-12-01 15:45:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:21,924 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 170 transitions. [2020-12-01 15:45:21,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 170 transitions. [2020-12-01 15:45:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 15:45:21,934 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:21,935 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:22,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-01 15:45:22,151 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:22,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:22,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1198830924, now seen corresponding path program 1 times [2020-12-01 15:45:22,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:22,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429347719] [2020-12-01 15:45:22,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:45:22,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429347719] [2020-12-01 15:45:22,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832006789] [2020-12-01 15:45:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:22,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:45:22,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:22,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:45:22,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:45:22,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2020-12-01 15:45:22,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600388932] [2020-12-01 15:45:22,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:22,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:22,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:22,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:22,643 INFO L87 Difference]: Start difference. First operand 137 states and 170 transitions. Second operand 4 states. [2020-12-01 15:45:22,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:22,933 INFO L93 Difference]: Finished difference Result 315 states and 423 transitions. [2020-12-01 15:45:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:22,934 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-12-01 15:45:22,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:22,938 INFO L225 Difference]: With dead ends: 315 [2020-12-01 15:45:22,939 INFO L226 Difference]: Without dead ends: 205 [2020-12-01 15:45:22,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:22,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-01 15:45:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 169. [2020-12-01 15:45:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-01 15:45:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 206 transitions. [2020-12-01 15:45:22,958 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 206 transitions. Word has length 39 [2020-12-01 15:45:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:22,958 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 206 transitions. [2020-12-01 15:45:22,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:22,959 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 206 transitions. [2020-12-01 15:45:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-01 15:45:22,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:22,962 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:23,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:23,179 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2073059654, now seen corresponding path program 1 times [2020-12-01 15:45:23,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:23,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939399710] [2020-12-01 15:45:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:45:23,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939399710] [2020-12-01 15:45:23,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159159826] [2020-12-01 15:45:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:23,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:45:23,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 15:45:23,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:45:23,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2020-12-01 15:45:23,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791672761] [2020-12-01 15:45:23,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:23,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:23,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:23,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:23,571 INFO L87 Difference]: Start difference. First operand 169 states and 206 transitions. Second operand 4 states. [2020-12-01 15:45:23,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:23,830 INFO L93 Difference]: Finished difference Result 380 states and 494 transitions. [2020-12-01 15:45:23,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:23,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-12-01 15:45:23,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:23,837 INFO L225 Difference]: With dead ends: 380 [2020-12-01 15:45:23,837 INFO L226 Difference]: Without dead ends: 238 [2020-12-01 15:45:23,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-12-01 15:45:23,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-12-01 15:45:23,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-12-01 15:45:23,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 242 transitions. [2020-12-01 15:45:23,848 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 242 transitions. Word has length 46 [2020-12-01 15:45:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:23,850 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 242 transitions. [2020-12-01 15:45:23,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 242 transitions. [2020-12-01 15:45:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-01 15:45:23,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:23,853 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:24,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:24,075 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:24,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:24,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1645599792, now seen corresponding path program 1 times [2020-12-01 15:45:24,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:24,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427948465] [2020-12-01 15:45:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-01 15:45:24,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427948465] [2020-12-01 15:45:24,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:24,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:45:24,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015203374] [2020-12-01 15:45:24,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:45:24,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:24,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:45:24,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:45:24,165 INFO L87 Difference]: Start difference. First operand 201 states and 242 transitions. Second operand 3 states. [2020-12-01 15:45:24,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:24,176 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2020-12-01 15:45:24,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:45:24,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-12-01 15:45:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:24,179 INFO L225 Difference]: With dead ends: 238 [2020-12-01 15:45:24,179 INFO L226 Difference]: Without dead ends: 177 [2020-12-01 15:45:24,180 INFO L677 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 [2020-12-01 15:45:24,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-12-01 15:45:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 156. [2020-12-01 15:45:24,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-01 15:45:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2020-12-01 15:45:24,187 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 53 [2020-12-01 15:45:24,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:24,187 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2020-12-01 15:45:24,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:45:24,188 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2020-12-01 15:45:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-01 15:45:24,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:24,189 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-12-01 15:45:24,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-01 15:45:24,191 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:24,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:24,192 INFO L82 PathProgramCache]: Analyzing trace with hash 255895067, now seen corresponding path program 1 times [2020-12-01 15:45:24,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:24,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137098720] [2020-12-01 15:45:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-01 15:45:24,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137098720] [2020-12-01 15:45:24,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:24,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:45:24,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996677606] [2020-12-01 15:45:24,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:45:24,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:24,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:45:24,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:45:24,281 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand 4 states. [2020-12-01 15:45:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:24,362 INFO L93 Difference]: Finished difference Result 408 states and 498 transitions. [2020-12-01 15:45:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:45:24,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2020-12-01 15:45:24,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:24,365 INFO L225 Difference]: With dead ends: 408 [2020-12-01 15:45:24,365 INFO L226 Difference]: Without dead ends: 279 [2020-12-01 15:45:24,366 INFO L677 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 [2020-12-01 15:45:24,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-12-01 15:45:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 197. [2020-12-01 15:45:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-12-01 15:45:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 247 transitions. [2020-12-01 15:45:24,380 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 247 transitions. Word has length 62 [2020-12-01 15:45:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:24,381 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 247 transitions. [2020-12-01 15:45:24,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:45:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 247 transitions. [2020-12-01 15:45:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-01 15:45:24,382 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:24,383 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2020-12-01 15:45:24,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-01 15:45:24,383 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:24,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:24,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1988088231, now seen corresponding path program 2 times [2020-12-01 15:45:24,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:24,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875740905] [2020-12-01 15:45:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 15:45:24,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875740905] [2020-12-01 15:45:24,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034562378] [2020-12-01 15:45:24,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:24,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:45:24,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:45:24,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:45:24,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-01 15:45:24,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:45:24,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2020-12-01 15:45:24,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94799438] [2020-12-01 15:45:24,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:45:24,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:24,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:45:24,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:45:24,742 INFO L87 Difference]: Start difference. First operand 197 states and 247 transitions. Second operand 7 states. [2020-12-01 15:45:25,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:25,159 INFO L93 Difference]: Finished difference Result 479 states and 618 transitions. [2020-12-01 15:45:25,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-01 15:45:25,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-12-01 15:45:25,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:25,163 INFO L225 Difference]: With dead ends: 479 [2020-12-01 15:45:25,163 INFO L226 Difference]: Without dead ends: 282 [2020-12-01 15:45:25,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:45:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-01 15:45:25,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 194. [2020-12-01 15:45:25,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-12-01 15:45:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2020-12-01 15:45:25,173 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 62 [2020-12-01 15:45:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:25,173 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2020-12-01 15:45:25,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:45:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2020-12-01 15:45:25,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-01 15:45:25,174 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:25,175 INFO L422 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] [2020-12-01 15:45:25,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:25,394 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:25,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:25,394 INFO L82 PathProgramCache]: Analyzing trace with hash 25170625, now seen corresponding path program 1 times [2020-12-01 15:45:25,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:25,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515418587] [2020-12-01 15:45:25,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-12-01 15:45:25,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515418587] [2020-12-01 15:45:25,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:25,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:45:25,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616312986] [2020-12-01 15:45:25,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:45:25,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:25,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:45:25,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:45:25,567 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand 5 states. [2020-12-01 15:45:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:26,003 INFO L93 Difference]: Finished difference Result 731 states and 897 transitions. [2020-12-01 15:45:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:45:26,004 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-01 15:45:26,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:26,008 INFO L225 Difference]: With dead ends: 731 [2020-12-01 15:45:26,008 INFO L226 Difference]: Without dead ends: 564 [2020-12-01 15:45:26,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:45:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-12-01 15:45:26,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 194. [2020-12-01 15:45:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-12-01 15:45:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2020-12-01 15:45:26,023 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 80 [2020-12-01 15:45:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:26,024 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2020-12-01 15:45:26,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:45:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2020-12-01 15:45:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-01 15:45:26,025 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:26,026 INFO L422 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] [2020-12-01 15:45:26,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:45:26,027 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:26,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:26,028 INFO L82 PathProgramCache]: Analyzing trace with hash -705708941, now seen corresponding path program 1 times [2020-12-01 15:45:26,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:26,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337380493] [2020-12-01 15:45:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-01 15:45:26,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337380493] [2020-12-01 15:45:26,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:26,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:45:26,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114198712] [2020-12-01 15:45:26,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:45:26,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:26,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:45:26,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:45:26,182 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand 5 states. [2020-12-01 15:45:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:26,333 INFO L93 Difference]: Finished difference Result 531 states and 643 transitions. [2020-12-01 15:45:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:45:26,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-12-01 15:45:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:26,336 INFO L225 Difference]: With dead ends: 531 [2020-12-01 15:45:26,336 INFO L226 Difference]: Without dead ends: 364 [2020-12-01 15:45:26,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:45:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-12-01 15:45:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 257. [2020-12-01 15:45:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-12-01 15:45:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 308 transitions. [2020-12-01 15:45:26,350 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 308 transitions. Word has length 83 [2020-12-01 15:45:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:26,351 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 308 transitions. [2020-12-01 15:45:26,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:45:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 308 transitions. [2020-12-01 15:45:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-01 15:45:26,352 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:26,352 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2020-12-01 15:45:26,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-01 15:45:26,353 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:26,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1924468269, now seen corresponding path program 1 times [2020-12-01 15:45:26,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:26,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749860298] [2020-12-01 15:45:26,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-12-01 15:45:26,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749860298] [2020-12-01 15:45:26,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:26,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 15:45:26,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117675201] [2020-12-01 15:45:26,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:45:26,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:26,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:45:26,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:45:26,503 INFO L87 Difference]: Start difference. First operand 257 states and 308 transitions. Second operand 6 states. [2020-12-01 15:45:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:27,148 INFO L93 Difference]: Finished difference Result 1254 states and 1501 transitions. [2020-12-01 15:45:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:45:27,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-12-01 15:45:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:27,156 INFO L225 Difference]: With dead ends: 1254 [2020-12-01 15:45:27,156 INFO L226 Difference]: Without dead ends: 1024 [2020-12-01 15:45:27,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:45:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2020-12-01 15:45:27,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 257. [2020-12-01 15:45:27,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-12-01 15:45:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 308 transitions. [2020-12-01 15:45:27,177 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 308 transitions. Word has length 83 [2020-12-01 15:45:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:27,177 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 308 transitions. [2020-12-01 15:45:27,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:45:27,178 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 308 transitions. [2020-12-01 15:45:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-01 15:45:27,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:27,179 INFO L422 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] [2020-12-01 15:45:27,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-01 15:45:27,180 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:27,181 INFO L82 PathProgramCache]: Analyzing trace with hash 335021134, now seen corresponding path program 1 times [2020-12-01 15:45:27,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:27,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429583258] [2020-12-01 15:45:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 54 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-01 15:45:27,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429583258] [2020-12-01 15:45:27,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247087892] [2020-12-01 15:45:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/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 [2020-12-01 15:45:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:27,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:45:27,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-12-01 15:45:27,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:45:27,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-01 15:45:27,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386709099] [2020-12-01 15:45:27,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:45:27,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:27,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:45:27,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:27,807 INFO L87 Difference]: Start difference. First operand 257 states and 308 transitions. Second operand 8 states. [2020-12-01 15:45:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:28,097 INFO L93 Difference]: Finished difference Result 727 states and 874 transitions. [2020-12-01 15:45:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:45:28,098 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-12-01 15:45:28,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:28,101 INFO L225 Difference]: With dead ends: 727 [2020-12-01 15:45:28,102 INFO L226 Difference]: Without dead ends: 497 [2020-12-01 15:45:28,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:45:28,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-01 15:45:28,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 449. [2020-12-01 15:45:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-12-01 15:45:28,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 544 transitions. [2020-12-01 15:45:28,127 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 544 transitions. Word has length 83 [2020-12-01 15:45:28,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:28,128 INFO L481 AbstractCegarLoop]: Abstraction has 449 states and 544 transitions. [2020-12-01 15:45:28,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:45:28,128 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 544 transitions. [2020-12-01 15:45:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-12-01 15:45:28,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:28,130 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2020-12-01 15:45:28,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-01 15:45:28,358 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:28,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1183041321, now seen corresponding path program 1 times [2020-12-01 15:45:28,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:28,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17010661] [2020-12-01 15:45:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:28,533 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2020-12-01 15:45:28,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17010661] [2020-12-01 15:45:28,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:45:28,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-01 15:45:28,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72122609] [2020-12-01 15:45:28,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:45:28,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:28,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:45:28,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:45:28,536 INFO L87 Difference]: Start difference. First operand 449 states and 544 transitions. Second operand 7 states. [2020-12-01 15:45:29,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:29,416 INFO L93 Difference]: Finished difference Result 1252 states and 1496 transitions. [2020-12-01 15:45:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-01 15:45:29,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 85 [2020-12-01 15:45:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:29,424 INFO L225 Difference]: With dead ends: 1252 [2020-12-01 15:45:29,424 INFO L226 Difference]: Without dead ends: 1022 [2020-12-01 15:45:29,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-12-01 15:45:29,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2020-12-01 15:45:29,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 445. [2020-12-01 15:45:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-12-01 15:45:29,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 540 transitions. [2020-12-01 15:45:29,458 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 540 transitions. Word has length 85 [2020-12-01 15:45:29,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:29,459 INFO L481 AbstractCegarLoop]: Abstraction has 445 states and 540 transitions. [2020-12-01 15:45:29,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:45:29,459 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 540 transitions. [2020-12-01 15:45:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-01 15:45:29,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:29,461 INFO L422 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] [2020-12-01 15:45:29,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-01 15:45:29,462 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:29,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:29,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1279960591, now seen corresponding path program 1 times [2020-12-01 15:45:29,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:29,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865730578] [2020-12-01 15:45:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 15:45:29,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865730578] [2020-12-01 15:45:29,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949927197] [2020-12-01 15:45:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:30,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 30 conjunts are in the unsatisfiable core [2020-12-01 15:45:30,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 24 proven. 35 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-01 15:45:30,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:45:30,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-12-01 15:45:30,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373987837] [2020-12-01 15:45:30,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:45:30,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:30,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:45:30,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:45:30,277 INFO L87 Difference]: Start difference. First operand 445 states and 540 transitions. Second operand 12 states. [2020-12-01 15:45:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:35,266 INFO L93 Difference]: Finished difference Result 2496 states and 2978 transitions. [2020-12-01 15:45:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-12-01 15:45:35,267 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2020-12-01 15:45:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:35,280 INFO L225 Difference]: With dead ends: 2496 [2020-12-01 15:45:35,280 INFO L226 Difference]: Without dead ends: 1946 [2020-12-01 15:45:35,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=444, Invalid=2312, Unknown=0, NotChecked=0, Total=2756 [2020-12-01 15:45:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2020-12-01 15:45:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 832. [2020-12-01 15:45:35,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-12-01 15:45:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1092 transitions. [2020-12-01 15:45:35,343 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1092 transitions. Word has length 86 [2020-12-01 15:45:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:35,343 INFO L481 AbstractCegarLoop]: Abstraction has 832 states and 1092 transitions. [2020-12-01 15:45:35,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:45:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1092 transitions. [2020-12-01 15:45:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-01 15:45:35,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:35,350 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:35,566 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-01 15:45:35,566 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:35,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1744430721, now seen corresponding path program 1 times [2020-12-01 15:45:35,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:35,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316626084] [2020-12-01 15:45:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:35,815 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-01 15:45:35,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316626084] [2020-12-01 15:45:35,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698474691] [2020-12-01 15:45:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:36,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-01 15:45:36,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 38 proven. 35 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 15:45:36,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:45:36,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2020-12-01 15:45:36,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775573871] [2020-12-01 15:45:36,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-01 15:45:36,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:36,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-01 15:45:36,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:45:36,257 INFO L87 Difference]: Start difference. First operand 832 states and 1092 transitions. Second operand 13 states. [2020-12-01 15:45:43,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:43,857 INFO L93 Difference]: Finished difference Result 4121 states and 5114 transitions. [2020-12-01 15:45:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-12-01 15:45:43,858 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2020-12-01 15:45:43,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:43,878 INFO L225 Difference]: With dead ends: 4121 [2020-12-01 15:45:43,878 INFO L226 Difference]: Without dead ends: 3128 [2020-12-01 15:45:43,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3588 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1483, Invalid=8417, Unknown=0, NotChecked=0, Total=9900 [2020-12-01 15:45:43,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2020-12-01 15:45:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 987. [2020-12-01 15:45:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2020-12-01 15:45:44,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1292 transitions. [2020-12-01 15:45:44,011 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1292 transitions. Word has length 89 [2020-12-01 15:45:44,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:44,012 INFO L481 AbstractCegarLoop]: Abstraction has 987 states and 1292 transitions. [2020-12-01 15:45:44,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-01 15:45:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1292 transitions. [2020-12-01 15:45:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-01 15:45:44,015 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:44,015 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:45:44,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:44,239 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:44,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:44,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1861564541, now seen corresponding path program 1 times [2020-12-01 15:45:44,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:44,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022034695] [2020-12-01 15:45:44,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 72 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 15:45:44,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022034695] [2020-12-01 15:45:44,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761661517] [2020-12-01 15:45:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e59faf09-348c-4a19-ba85-9d84432689b8/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:45:44,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:45:44,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:45:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-12-01 15:45:44,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:45:44,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-12-01 15:45:44,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802183218] [2020-12-01 15:45:44,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:45:44,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:45:44,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:45:44,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:45:44,658 INFO L87 Difference]: Start difference. First operand 987 states and 1292 transitions. Second operand 7 states. [2020-12-01 15:45:45,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:45:45,097 INFO L93 Difference]: Finished difference Result 1443 states and 1874 transitions. [2020-12-01 15:45:45,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:45:45,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2020-12-01 15:45:45,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:45:45,106 INFO L225 Difference]: With dead ends: 1443 [2020-12-01 15:45:45,106 INFO L226 Difference]: Without dead ends: 1030 [2020-12-01 15:45:45,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:45:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-12-01 15:45:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1015. [2020-12-01 15:45:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-12-01 15:45:45,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1301 transitions. [2020-12-01 15:45:45,169 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1301 transitions. Word has length 97 [2020-12-01 15:45:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:45:45,170 INFO L481 AbstractCegarLoop]: Abstraction has 1015 states and 1301 transitions. [2020-12-01 15:45:45,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:45:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1301 transitions. [2020-12-01 15:45:45,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-01 15:45:45,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:45:45,174 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-12-01 15:45:45,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:45:45,390 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-01 15:45:45,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:45:45,391 INFO L82 PathProgramCache]: Analyzing trace with hash 840122728, now seen corresponding path program 1 times [2020-12-01 15:45:45,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:45:45,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288042480] [2020-12-01 15:45:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:45:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:45:45,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:45:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:45:45,577 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:45:45,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:45:45,620 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:45:45,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-01 15:45:45,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:45:45 BoogieIcfgContainer [2020-12-01 15:45:45,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:45:45,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:45:45,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:45:45,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:45:45,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:45:18" (3/4) ... [2020-12-01 15:45:45,767 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:45:45,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:45:45,770 INFO L168 Benchmark]: Toolchain (without parser) took 28463.04 ms. Allocated memory was 100.7 MB in the beginning and 262.1 MB in the end (delta: 161.5 MB). Free memory was 72.6 MB in the beginning and 162.5 MB in the end (delta: -89.9 MB). Peak memory consumption was 72.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,770 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 100.7 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:45:45,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.37 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 75.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.12 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,773 INFO L168 Benchmark]: Boogie Preprocessor took 34.91 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 72.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,773 INFO L168 Benchmark]: RCFGBuilder took 866.74 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 72.0 MB in the beginning and 97.7 MB in the end (delta: -25.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,776 INFO L168 Benchmark]: TraceAbstraction took 27028.84 ms. Allocated memory was 121.6 MB in the beginning and 262.1 MB in the end (delta: 140.5 MB). Free memory was 97.6 MB in the beginning and 162.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:45:45,777 INFO L168 Benchmark]: Witness Printer took 6.73 ms. Allocated memory is still 262.1 MB. Free memory is still 162.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:45:45,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 100.7 MB. Free memory is still 59.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 450.37 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 75.4 MB in the end (delta: -2.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.12 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 73.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.91 ms. Allocated memory is still 100.7 MB. Free memory was 73.3 MB in the beginning and 72.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 866.74 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 72.0 MB in the beginning and 97.7 MB in the end (delta: -25.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27028.84 ms. Allocated memory was 121.6 MB in the beginning and 262.1 MB in the end (delta: 140.5 MB). Free memory was 97.6 MB in the beginning and 162.5 MB in the end (delta: -64.9 MB). Peak memory consumption was 77.7 MB. Max. memory is 16.1 GB. * Witness Printer took 6.73 ms. Allocated memory is still 262.1 MB. Free memory is still 162.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L116] unsigned int a, b, r; [L118] b = __VERIFIER_nondet_uint() [L120] a = 234770789 [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND FALSE !(a3 == (unsigned char)0) [L60] nb = (unsigned char)4 [L61] COND FALSE !(b3 == (unsigned char)0) [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] EXPR partial_sum + a0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] EXPR partial_sum + b0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND TRUE i == (unsigned char)1 [L77] EXPR partial_sum + a1 [L77] partial_sum = partial_sum + a1 [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND TRUE i == (unsigned char)1 [L83] EXPR partial_sum + b1 [L83] partial_sum = partial_sum + b1 [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND TRUE i == (unsigned char)1 [L92] r1 = (unsigned char)partial_sum [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND FALSE !(i == (unsigned char)1) [L78] COND TRUE i == (unsigned char)2 [L78] EXPR partial_sum + a2 [L78] partial_sum = partial_sum + a2 [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND TRUE i == (unsigned char)2 [L84] EXPR partial_sum + b2 [L84] partial_sum = partial_sum + b2 [L85] COND FALSE !(i == (unsigned char)3) [L87] COND TRUE partial_sum > ((unsigned char)255) [L88] partial_sum = partial_sum & ((unsigned char)255) [L89] carry = (unsigned short)1 [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND TRUE i == (unsigned char)2 [L93] r2 = (unsigned char)partial_sum [L94] COND FALSE !(i == (unsigned char)3) [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND FALSE !(i == (unsigned char)0) [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND TRUE i == (unsigned char)3 [L79] EXPR partial_sum + a3 [L79] partial_sum = partial_sum + a3 [L81] COND TRUE i < nb [L82] COND FALSE !(i == (unsigned char)0) [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND TRUE i == (unsigned char)3 [L85] EXPR partial_sum + b3 [L85] partial_sum = partial_sum + b3 [L87] COND FALSE !(partial_sum > ((unsigned char)255)) [L91] COND FALSE !(i == (unsigned char)0) [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND TRUE i == (unsigned char)3 [L94] r3 = (unsigned char)partial_sum [L96] EXPR i + (unsigned char)1 [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND FALSE !(i < (unsigned char)4) [L108] r1 << 8U [L108] r2 << 16U [L108] r3 << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 116 locations, 38 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.8s, OverallIterations: 21, TraceHistogramMax: 4, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2654 SDtfs, 3586 SDslu, 7478 SDs, 0 SdLazy, 9737 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 810 GetRequests, 557 SyntacticMatches, 22 SemanticMatches, 231 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4389 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1015occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 20 MinimizatonAttempts, 5568 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1733 NumberOfCodeBlocks, 1733 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 1604 ConstructedInterpolants, 0 QuantifiedInterpolants, 470304 SizeOfPredicates, 36 NumberOfNonLiveVariables, 1306 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 28 InterpolantComputations, 15 PerfectInterpolantSequences, 1196/1311 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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...