./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/gcd02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/gcd02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5840bf8cb045a250261e3957017079dce43a53700f7c91e31c16b36d5b980e00 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:52:57,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:52:57,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:52:57,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:52:57,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:52:57,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:52:57,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:52:57,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:52:57,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:52:57,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:52:57,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:52:57,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:52:57,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:52:57,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:52:57,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:52:57,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:52:57,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:52:57,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:52:57,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:52:57,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:52:57,793 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:52:57,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:52:57,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:52:57,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:52:57,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:52:57,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:52:57,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:52:57,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:52:57,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:52:57,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:52:57,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:52:57,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:52:57,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:52:57,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:52:57,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:52:57,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:52:57,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:52:57,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:52:57,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:52:57,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:52:57,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:52:57,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:52:57,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:52:57,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:52:57,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:52:57,837 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:52:57,837 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:52:57,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:52:57,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:52:57,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:52:57,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:52:57,839 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:52:57,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:52:57,840 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:52:57,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:52:57,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:52:57,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:52:57,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:52:57,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:52:57,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:52:57,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:52:57,841 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:52:57,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:52:57,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:52:57,843 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:52:57,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:52:57,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:52:57,843 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:52:57,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:52:57,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:52:57,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:52:57,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:52:57,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:52:57,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:52:57,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:52:57,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:52:57,845 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5840bf8cb045a250261e3957017079dce43a53700f7c91e31c16b36d5b980e00 [2022-07-14 13:52:58,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:52:58,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:52:58,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:52:58,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:52:58,085 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:52:58,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd02.c [2022-07-14 13:52:58,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d118884/9131fa2744ea4d4ea001855dc29640ec/FLAG30e568451 [2022-07-14 13:52:58,512 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:52:58,514 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c [2022-07-14 13:52:58,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d118884/9131fa2744ea4d4ea001855dc29640ec/FLAG30e568451 [2022-07-14 13:52:58,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71d118884/9131fa2744ea4d4ea001855dc29640ec [2022-07-14 13:52:58,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:52:58,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:52:58,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:52:58,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:52:58,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:52:58,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c690af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58, skipping insertion in model container [2022-07-14 13:52:58,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:52:58,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:52:58,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c[623,636] [2022-07-14 13:52:58,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c[1283,1296] [2022-07-14 13:52:58,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:52:58,793 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:52:58,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c[623,636] [2022-07-14 13:52:58,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd02.c[1283,1296] [2022-07-14 13:52:58,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:52:58,837 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:52:58,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58 WrapperNode [2022-07-14 13:52:58,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:52:58,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:52:58,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:52:58,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:52:58,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,876 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-07-14 13:52:58,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:52:58,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:52:58,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:52:58,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:52:58,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:52:58,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:52:58,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:52:58,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:52:58,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (1/1) ... [2022-07-14 13:52:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:52:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:52:58,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 13:52:58,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 13:52:58,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:52:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-07-14 13:52:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-07-14 13:52:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:52:58,974 INFO L130 BoogieDeclarations]: Found specification of procedure divides [2022-07-14 13:52:58,974 INFO L138 BoogieDeclarations]: Found implementation of procedure divides [2022-07-14 13:52:58,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:52:58,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:52:59,019 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:52:59,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:52:59,178 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:52:59,192 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:52:59,195 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 13:52:59,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:52:59 BoogieIcfgContainer [2022-07-14 13:52:59,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:52:59,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:52:59,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:52:59,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:52:59,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:52:58" (1/3) ... [2022-07-14 13:52:59,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed9a716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:52:59, skipping insertion in model container [2022-07-14 13:52:59,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:52:58" (2/3) ... [2022-07-14 13:52:59,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed9a716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:52:59, skipping insertion in model container [2022-07-14 13:52:59,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:52:59" (3/3) ... [2022-07-14 13:52:59,211 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd02.c [2022-07-14 13:52:59,225 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:52:59,225 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 13:52:59,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:52:59,272 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@373006c7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@943d5a0 [2022-07-14 13:52:59,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-14 13:52:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.5) internal successors, (45), 36 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-14 13:52:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 13:52:59,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:52:59,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:52:59,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:52:59,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:52:59,300 INFO L85 PathProgramCache]: Analyzing trace with hash -23952042, now seen corresponding path program 1 times [2022-07-14 13:52:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:52:59,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574696831] [2022-07-14 13:52:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:52:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:52:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:52:59,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:59,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:52:59,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574696831] [2022-07-14 13:52:59,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574696831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:52:59,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:52:59,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:52:59,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044950022] [2022-07-14 13:52:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:52:59,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:52:59,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:52:59,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:52:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:52:59,565 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.5) internal successors, (45), 36 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:59,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:52:59,696 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2022-07-14 13:52:59,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:52:59,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 13:52:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:52:59,705 INFO L225 Difference]: With dead ends: 83 [2022-07-14 13:52:59,705 INFO L226 Difference]: Without dead ends: 32 [2022-07-14 13:52:59,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:52:59,711 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 50 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:52:59,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 135 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:52:59,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-14 13:52:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-14 13:52:59,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 26 states have internal predecessors, (28), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 13:52:59,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2022-07-14 13:52:59,742 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 11 [2022-07-14 13:52:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:52:59,742 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2022-07-14 13:52:59,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2022-07-14 13:52:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 13:52:59,744 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:52:59,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:52:59,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:52:59,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:52:59,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:52:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash -23952266, now seen corresponding path program 1 times [2022-07-14 13:52:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:52:59,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639855876] [2022-07-14 13:52:59,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:52:59,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:52:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:52:59,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:52:59,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:52:59,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639855876] [2022-07-14 13:52:59,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639855876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:52:59,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:52:59,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:52:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79575336] [2022-07-14 13:52:59,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:52:59,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:52:59,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:52:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:52:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:52:59,805 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:59,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:52:59,876 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-07-14 13:52:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:52:59,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 13:52:59,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:52:59,878 INFO L225 Difference]: With dead ends: 32 [2022-07-14 13:52:59,878 INFO L226 Difference]: Without dead ends: 30 [2022-07-14 13:52:59,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:52:59,880 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 35 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:52:59,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 67 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:52:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-14 13:52:59,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-14 13:52:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-14 13:52:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-07-14 13:52:59,889 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2022-07-14 13:52:59,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:52:59,889 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-07-14 13:52:59,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:52:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-07-14 13:52:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:52:59,891 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:52:59,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:52:59,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:52:59,891 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:52:59,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:52:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash 346469594, now seen corresponding path program 1 times [2022-07-14 13:52:59,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:52:59,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994455326] [2022-07-14 13:52:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:52:59,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:52:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:52:59,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:52:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:00,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994455326] [2022-07-14 13:53:00,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994455326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:00,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:53:00,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 13:53:00,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801390688] [2022-07-14 13:53:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:00,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 13:53:00,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:00,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 13:53:00,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:53:00,021 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:00,183 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-07-14 13:53:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 13:53:00,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-14 13:53:00,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:00,189 INFO L225 Difference]: With dead ends: 42 [2022-07-14 13:53:00,189 INFO L226 Difference]: Without dead ends: 41 [2022-07-14 13:53:00,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:53:00,194 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:00,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 68 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:00,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-07-14 13:53:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2022-07-14 13:53:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 30 states have internal predecessors, (32), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:53:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2022-07-14 13:53:00,205 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2022-07-14 13:53:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:00,205 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2022-07-14 13:53:00,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2022-07-14 13:53:00,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 13:53:00,207 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:00,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:00,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:53:00,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:00,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:00,208 INFO L85 PathProgramCache]: Analyzing trace with hash -2144344432, now seen corresponding path program 1 times [2022-07-14 13:53:00,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:00,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177498489] [2022-07-14 13:53:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:00,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:00,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:00,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177498489] [2022-07-14 13:53:00,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177498489] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:00,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:53:00,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:53:00,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775826790] [2022-07-14 13:53:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:00,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:53:00,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:53:00,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:53:00,250 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:00,263 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-07-14 13:53:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:53:00,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-14 13:53:00,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:00,265 INFO L225 Difference]: With dead ends: 38 [2022-07-14 13:53:00,265 INFO L226 Difference]: Without dead ends: 37 [2022-07-14 13:53:00,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:53:00,267 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:00,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:53:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-14 13:53:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-14 13:53:00,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:53:00,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-07-14 13:53:00,274 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 18 [2022-07-14 13:53:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:00,275 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-07-14 13:53:00,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-07-14 13:53:00,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 13:53:00,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:00,276 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:00,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:53:00,277 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:00,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1147675421, now seen corresponding path program 1 times [2022-07-14 13:53:00,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:00,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934734919] [2022-07-14 13:53:00,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:00,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:00,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:00,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934734919] [2022-07-14 13:53:00,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934734919] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:53:00,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190568369] [2022-07-14 13:53:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:00,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:00,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:53:00,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:53:00,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:53:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:00,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 13:53:00,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:53:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:53:00,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:53:00,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190568369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:00,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:53:00,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2022-07-14 13:53:00,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825370933] [2022-07-14 13:53:00,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:00,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:53:00,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:00,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:53:00,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-07-14 13:53:00,722 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:00,889 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-07-14 13:53:00,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 13:53:00,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-14 13:53:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:00,891 INFO L225 Difference]: With dead ends: 46 [2022-07-14 13:53:00,891 INFO L226 Difference]: Without dead ends: 31 [2022-07-14 13:53:00,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2022-07-14 13:53:00,893 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 25 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:00,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 83 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:00,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-14 13:53:00,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-14 13:53:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-14 13:53:00,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-07-14 13:53:00,899 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 23 [2022-07-14 13:53:00,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:00,900 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-07-14 13:53:00,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 8 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:53:00,900 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-07-14 13:53:00,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 13:53:00,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:00,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:00,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:53:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:01,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 207304407, now seen corresponding path program 1 times [2022-07-14 13:53:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:01,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207989567] [2022-07-14 13:53:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 13:53:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:53:01,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:01,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207989567] [2022-07-14 13:53:01,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207989567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:01,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:53:01,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 13:53:01,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356460558] [2022-07-14 13:53:01,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:01,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 13:53:01,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:01,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 13:53:01,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:53:01,268 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:01,401 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-07-14 13:53:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 13:53:01,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-07-14 13:53:01,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:01,404 INFO L225 Difference]: With dead ends: 43 [2022-07-14 13:53:01,404 INFO L226 Difference]: Without dead ends: 42 [2022-07-14 13:53:01,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:53:01,408 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:01,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 70 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-14 13:53:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-07-14 13:53:01,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.1) internal successors, (33), 31 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (8), 5 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-14 13:53:01,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2022-07-14 13:53:01,425 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 27 [2022-07-14 13:53:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:01,426 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2022-07-14 13:53:01,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2022-07-14 13:53:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-14 13:53:01,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:01,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:01,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 13:53:01,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:01,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1567415017, now seen corresponding path program 1 times [2022-07-14 13:53:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:01,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147587661] [2022-07-14 13:53:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 13:53:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 13:53:01,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:01,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147587661] [2022-07-14 13:53:01,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147587661] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:53:01,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513538323] [2022-07-14 13:53:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:01,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:53:01,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:53:01,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:53:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:01,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 13:53:01,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:53:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 13:53:01,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:53:01,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513538323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:01,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:53:01,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2022-07-14 13:53:01,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226515842] [2022-07-14 13:53:01,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:01,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 13:53:01,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:01,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 13:53:01,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:53:01,817 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 10 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:01,948 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-07-14 13:53:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 13:53:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-07-14 13:53:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:01,951 INFO L225 Difference]: With dead ends: 52 [2022-07-14 13:53:01,951 INFO L226 Difference]: Without dead ends: 43 [2022-07-14 13:53:01,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2022-07-14 13:53:01,953 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:01,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 64 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-14 13:53:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-07-14 13:53:01,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (10), 6 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-14 13:53:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-07-14 13:53:01,971 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 27 [2022-07-14 13:53:01,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:01,972 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-07-14 13:53:01,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-07-14 13:53:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-14 13:53:01,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:01,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:01,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:53:02,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-14 13:53:02,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:02,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1739599136, now seen corresponding path program 1 times [2022-07-14 13:53:02,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:02,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983170286] [2022-07-14 13:53:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 13:53:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:02,323 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:53:02,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:02,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983170286] [2022-07-14 13:53:02,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983170286] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:53:02,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411939998] [2022-07-14 13:53:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:02,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:02,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:53:02,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:53:02,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:53:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:02,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 13:53:02,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:53:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 13:53:02,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:53:02,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411939998] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:02,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:53:02,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2022-07-14 13:53:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331226559] [2022-07-14 13:53:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:02,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:53:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:02,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:53:02,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2022-07-14 13:53:02,578 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 12 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:02,774 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-07-14 13:53:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 13:53:02,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-07-14 13:53:02,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:02,776 INFO L225 Difference]: With dead ends: 52 [2022-07-14 13:53:02,776 INFO L226 Difference]: Without dead ends: 37 [2022-07-14 13:53:02,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-07-14 13:53:02,777 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:02,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 88 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:02,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-14 13:53:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-14 13:53:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-14 13:53:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2022-07-14 13:53:02,782 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 33 [2022-07-14 13:53:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:02,782 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2022-07-14 13:53:02,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.5) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 13:53:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2022-07-14 13:53:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 13:53:02,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:53:02,783 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 13:53:02,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:53:03,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:03,006 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-14 13:53:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:53:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash -378656390, now seen corresponding path program 1 times [2022-07-14 13:53:03,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:53:03,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675137754] [2022-07-14 13:53:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:53:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 13:53:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 13:53:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 13:53:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 13:53:03,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:53:03,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675137754] [2022-07-14 13:53:03,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675137754] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:53:03,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644781424] [2022-07-14 13:53:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:53:03,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:53:03,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:53:03,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:53:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:53:03,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 13:53:03,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:53:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 13:53:03,421 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:53:03,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644781424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:53:03,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:53:03,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2022-07-14 13:53:03,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017636497] [2022-07-14 13:53:03,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:53:03,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:53:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:53:03,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:53:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2022-07-14 13:53:03,425 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:53:03,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:53:03,557 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-07-14 13:53:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 13:53:03,557 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2022-07-14 13:53:03,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:53:03,560 INFO L225 Difference]: With dead ends: 37 [2022-07-14 13:53:03,560 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 13:53:03,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2022-07-14 13:53:03,566 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:53:03,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 55 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:53:03,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 13:53:03,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 13:53:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:53:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 13:53:03,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-14 13:53:03,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:53:03,569 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 13:53:03,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 7 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:53:03,571 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 13:53:03,571 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 13:53:03,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-07-14 13:53:03,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-07-14 13:53:03,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-07-14 13:53:03,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-07-14 13:53:03,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-07-14 13:53:03,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-07-14 13:53:03,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:53:03,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:53:03,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-14 13:53:03,943 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-07-14 13:53:03,943 INFO L899 garLoopResultBuilder]: For program point dividesFINAL(lines 32 40) no Hoare annotation was computed. [2022-07-14 13:53:03,943 INFO L899 garLoopResultBuilder]: For program point dividesErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point dividesEXIT(lines 32 40) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point dividesErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L895 garLoopResultBuilder]: At program point L39-2(line 39) the Hoare annotation is: (let ((.cse0 (not (< 0 |divides_#in~n|)))) (and (or (not (< |divides_#in~m| 2147483647)) (< divides_~m 2147483647) .cse0) (or (not (<= |divides_#in~m| 2147483647)) .cse0 (and (<= divides_~m 2147483647) (< 0 divides_~n) (<= divides_~n divides_~m))))) [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2022-07-14 13:53:03,944 INFO L902 garLoopResultBuilder]: At program point dividesENTRY(lines 32 40) the Hoare annotation is: true [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point gcdEXIT(lines 17 29) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point gcdFINAL(lines 17 29) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-07-14 13:53:03,945 INFO L895 garLoopResultBuilder]: At program point L28-2(line 28) the Hoare annotation is: (or (not (<= |gcd_#in~y2| 2147483647)) (not (<= |gcd_#in~y1| 2147483647)) (and (not (<= gcd_~y1 0)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (= gcd_~y1 |gcd_#in~y1|) (<= gcd_~y2 2147483647))) [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L895 garLoopResultBuilder]: At program point L26-2(line 26) the Hoare annotation is: (or (not (<= |gcd_#in~y2| 2147483647)) (not (<= |gcd_#in~y1| 2147483647)) (and (not (<= gcd_~y1 0)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (= gcd_~y1 |gcd_#in~y1|) (<= gcd_~y2 2147483647))) [2022-07-14 13:53:03,946 INFO L902 garLoopResultBuilder]: At program point gcdENTRY(lines 17 29) the Hoare annotation is: true [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 21) no Hoare annotation was computed. [2022-07-14 13:53:03,946 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 17 29) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 50) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 46) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L902 garLoopResultBuilder]: At program point L42(lines 42 59) the Hoare annotation is: true [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-14 13:53:03,947 INFO L895 garLoopResultBuilder]: At program point L53(line 53) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (< 0 |ULTIMATE.start_main_~z~0#1|) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2022-07-14 13:53:03,947 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2022-07-14 13:53:03,948 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 58) no Hoare annotation was computed. [2022-07-14 13:53:03,948 INFO L899 garLoopResultBuilder]: For program point L53-2(lines 53 57) no Hoare annotation was computed. [2022-07-14 13:53:03,950 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:53:03,952 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 13:53:03,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 01:53:03 BoogieIcfgContainer [2022-07-14 13:53:03,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 13:53:03,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 13:53:03,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 13:53:03,960 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 13:53:03,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:52:59" (3/4) ... [2022-07-14 13:53:03,962 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 13:53:03,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure divides [2022-07-14 13:53:03,968 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2022-07-14 13:53:03,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-14 13:53:03,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-14 13:53:03,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 13:53:03,972 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 13:53:04,004 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 13:53:04,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 13:53:04,005 INFO L158 Benchmark]: Toolchain (without parser) took 5459.61ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 51.4MB in the beginning and 54.1MB in the end (delta: -2.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,006 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:53:04,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.80ms. Allocated memory is still 88.1MB. Free memory was 51.2MB in the beginning and 64.7MB in the end (delta: -13.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.72ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,006 INFO L158 Benchmark]: Boogie Preprocessor took 17.20ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 62.4MB in the end (delta: 836.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:53:04,007 INFO L158 Benchmark]: RCFGBuilder took 302.85ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 51.5MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,007 INFO L158 Benchmark]: TraceAbstraction took 4760.46ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.9MB in the beginning and 57.2MB in the end (delta: -6.4MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,008 INFO L158 Benchmark]: Witness Printer took 45.25ms. Allocated memory is still 130.0MB. Free memory was 57.2MB in the beginning and 54.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 13:53:04,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.80ms. Allocated memory is still 88.1MB. Free memory was 51.2MB in the beginning and 64.7MB in the end (delta: -13.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.72ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 63.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.20ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 62.4MB in the end (delta: 836.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.85ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 51.5MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4760.46ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 50.9MB in the beginning and 57.2MB in the end (delta: -6.4MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 45.25ms. Allocated memory is still 130.0MB. Free memory was 57.2MB in the beginning and 54.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 44 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 209 mSDsluCounter, 686 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 518 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1282 IncrementalHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 168 mSDtfsCounter, 1282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 42 PreInvPairs, 52 NumberOfFragments, 102 HoareAnnotationTreeSize, 42 FomulaSimplifications, 77 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 90 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 1195 SizeOfPredicates, 16 NumberOfNonLiveVariables, 412 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 57/73 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-14 13:53:04,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE