./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --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/goblint-regression/09-regions_17-arrayloop_nr.i -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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:04:28,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:04:28,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:04:28,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:04:28,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:04:28,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:04:28,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:04:28,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:04:28,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:04:28,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:04:28,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:04:28,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:04:28,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:04:28,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:04:28,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:04:28,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:04:28,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:04:28,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:04:28,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:04:28,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:04:28,829 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:04:28,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:04:28,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:04:28,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:04:28,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:04:28,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:04:28,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:04:28,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:04:28,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:04:28,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:04:28,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:04:28,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:04:28,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:04:28,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:04:28,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:04:28,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:04:28,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:04:28,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:04:28,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:04:28,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:04:28,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:04:28,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:04:28,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:04:28,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:04:28,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:04:28,876 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:04:28,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:04:28,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:04:28,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:04:28,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:04:28,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:04:28,878 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:04:28,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:04:28,879 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:04:28,880 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:04:28,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:04:28,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:04:28,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:04:28,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:04:28,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:04:28,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:04:28,881 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:04:28,882 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:04:28,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:04:28,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:04:28,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:04:28,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:04:28,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:04:28,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:04:28,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:04:28,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:04:28,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:04:28,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:04:28,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:04:28,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:04:28,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:04:28,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2022-07-14 14:04:29,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:04:29,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:04:29,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:04:29,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:04:29,155 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:04:29,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-07-14 14:04:29,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f759c/21d518cc21434b538b06ed498b336667/FLAG4d7d9de3a [2022-07-14 14:04:29,770 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:04:29,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2022-07-14 14:04:29,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f759c/21d518cc21434b538b06ed498b336667/FLAG4d7d9de3a [2022-07-14 14:04:30,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f759c/21d518cc21434b538b06ed498b336667 [2022-07-14 14:04:30,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:04:30,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:04:30,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:04:30,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:04:30,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:04:30,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417652be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30, skipping insertion in model container [2022-07-14 14:04:30,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:04:30,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:04:30,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:04:30,669 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:04:30,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:04:30,796 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:04:30,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30 WrapperNode [2022-07-14 14:04:30,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:04:30,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:04:30,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:04:30,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:04:30,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,870 INFO L137 Inliner]: procedures = 369, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 133 [2022-07-14 14:04:30,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:04:30,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:04:30,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:04:30,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:04:30,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:04:30,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:04:30,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:04:30,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:04:30,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (1/1) ... [2022-07-14 14:04:30,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:04:30,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:04:30,936 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 14:04:30,949 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 14:04:30,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:04:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:04:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:04:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:04:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:04:30,978 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:04:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:04:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:04:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:04:30,979 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:04:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:04:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:04:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:04:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:04:30,983 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:04:31,186 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:04:31,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:04:31,512 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:04:31,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:04:31,523 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 14:04:31,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:31 BoogieIcfgContainer [2022-07-14 14:04:31,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:04:31,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:04:31,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:04:31,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:04:31,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:04:30" (1/3) ... [2022-07-14 14:04:31,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1993c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:04:31, skipping insertion in model container [2022-07-14 14:04:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:04:30" (2/3) ... [2022-07-14 14:04:31,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1993c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:04:31, skipping insertion in model container [2022-07-14 14:04:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:31" (3/3) ... [2022-07-14 14:04:31,534 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2022-07-14 14:04:31,539 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:04:31,547 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:04:31,547 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:04:31,548 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:04:31,615 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:04:31,648 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:04:31,658 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:31,660 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:31,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 160 transitions, 325 flow [2022-07-14 14:04:31,720 INFO L129 PetriNetUnfolder]: 6/159 cut-off events. [2022-07-14 14:04:31,721 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:04:31,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 6/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 250 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 106. Up to 2 conditions per place. [2022-07-14 14:04:31,732 INFO L116 LiptonReduction]: Number of co-enabled transitions 5586 [2022-07-14 14:05:18,563 INFO L131 LiptonReduction]: Checked pairs total: 7911 [2022-07-14 14:05:18,563 INFO L133 LiptonReduction]: Total number of compositions: 148 [2022-07-14 14:05:18,570 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 37 transitions, 79 flow [2022-07-14 14:05:18,596 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 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 14:05:18,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:05:18,619 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@3a93149f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6885932f [2022-07-14 14:05:18,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:05:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 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 14:05:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:05:18,626 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:18,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:05:18,627 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash 18434, now seen corresponding path program 1 times [2022-07-14 14:05:18,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:18,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223663164] [2022-07-14 14:05:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:18,811 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 14:05:18,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:18,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223663164] [2022-07-14 14:05:18,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223663164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:18,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:18,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:18,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825943791] [2022-07-14 14:05:18,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:18,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 14:05:18,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 14:05:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:05:18,845 INFO L87 Difference]: Start difference. First operand has 229 states, 213 states have (on average 2.131455399061033) internal successors, (454), 228 states have internal predecessors, (454), 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) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:05:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:18,942 INFO L93 Difference]: Finished difference Result 213 states and 423 transitions. [2022-07-14 14:05:18,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 14:05:18,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-07-14 14:05:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:18,957 INFO L225 Difference]: With dead ends: 213 [2022-07-14 14:05:18,957 INFO L226 Difference]: Without dead ends: 213 [2022-07-14 14:05:18,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 14:05:18,965 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:18,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-14 14:05:19,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-07-14 14:05:19,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 201 states have (on average 2.1044776119402986) internal successors, (423), 212 states have internal predecessors, (423), 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 14:05:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 423 transitions. [2022-07-14 14:05:19,035 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 423 transitions. Word has length 2 [2022-07-14 14:05:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:19,035 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 423 transitions. [2022-07-14 14:05:19,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:05:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 423 transitions. [2022-07-14 14:05:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-14 14:05:19,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:19,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-14 14:05:19,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:05:19,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:19,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:19,038 INFO L85 PathProgramCache]: Analyzing trace with hash 18436, now seen corresponding path program 1 times [2022-07-14 14:05:19,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:19,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116732486] [2022-07-14 14:05:19,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:19,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:19,136 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 14:05:19,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:19,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116732486] [2022-07-14 14:05:19,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116732486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:19,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:19,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:05:19,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000298031] [2022-07-14 14:05:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:19,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:19,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:19,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:19,144 INFO L87 Difference]: Start difference. First operand 213 states and 423 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:05:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:19,286 INFO L93 Difference]: Finished difference Result 368 states and 732 transitions. [2022-07-14 14:05:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:19,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2022-07-14 14:05:19,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:19,289 INFO L225 Difference]: With dead ends: 368 [2022-07-14 14:05:19,289 INFO L226 Difference]: Without dead ends: 368 [2022-07-14 14:05:19,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:05:19,290 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:19,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:19,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-07-14 14:05:19,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2022-07-14 14:05:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 356 states have (on average 2.056179775280899) internal successors, (732), 367 states have internal predecessors, (732), 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 14:05:19,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 732 transitions. [2022-07-14 14:05:19,316 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 732 transitions. Word has length 2 [2022-07-14 14:05:19,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:19,316 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 732 transitions. [2022-07-14 14:05:19,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:05:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 732 transitions. [2022-07-14 14:05:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:05:19,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:19,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:05:19,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:05:19,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:19,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 572096, now seen corresponding path program 1 times [2022-07-14 14:05:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:19,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506372704] [2022-07-14 14:05:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:19,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:19,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506372704] [2022-07-14 14:05:19,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506372704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:19,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:19,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:19,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687204885] [2022-07-14 14:05:19,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:19,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:19,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:19,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:19,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:19,442 INFO L87 Difference]: Start difference. First operand 368 states and 732 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:05:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:19,498 INFO L93 Difference]: Finished difference Result 353 states and 703 transitions. [2022-07-14 14:05:19,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:19,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:05:19,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:19,501 INFO L225 Difference]: With dead ends: 353 [2022-07-14 14:05:19,501 INFO L226 Difference]: Without dead ends: 353 [2022-07-14 14:05:19,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:19,506 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 28 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:19,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:05:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-14 14:05:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 325. [2022-07-14 14:05:19,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 318 states have (on average 2.0345911949685536) internal successors, (647), 324 states have internal predecessors, (647), 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 14:05:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 647 transitions. [2022-07-14 14:05:19,530 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 647 transitions. Word has length 3 [2022-07-14 14:05:19,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:19,530 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 647 transitions. [2022-07-14 14:05:19,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 14:05:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 647 transitions. [2022-07-14 14:05:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:05:19,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:19,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:05:19,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:05:19,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:19,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:19,534 INFO L85 PathProgramCache]: Analyzing trace with hash -138359831, now seen corresponding path program 1 times [2022-07-14 14:05:19,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:19,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700338307] [2022-07-14 14:05:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:19,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:19,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700338307] [2022-07-14 14:05:19,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700338307] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:05:19,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491189072] [2022-07-14 14:05:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:19,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:19,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:05:19,614 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 14:05:19,615 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 14:05:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:19,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:05:19,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:05:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:05:19,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:05:19,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491189072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:19,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:05:19,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-07-14 14:05:19,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261843373] [2022-07-14 14:05:19,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:19,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:19,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:19,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:19,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:19,733 INFO L87 Difference]: Start difference. First operand 325 states and 647 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:05:19,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:19,821 INFO L93 Difference]: Finished difference Result 279 states and 555 transitions. [2022-07-14 14:05:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:19,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-07-14 14:05:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:19,823 INFO L225 Difference]: With dead ends: 279 [2022-07-14 14:05:19,824 INFO L226 Difference]: Without dead ends: 279 [2022-07-14 14:05:19,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:05:19,825 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:19,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:19,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-14 14:05:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2022-07-14 14:05:19,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 276 states have (on average 2.010869565217391) internal successors, (555), 278 states have internal predecessors, (555), 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 14:05:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 555 transitions. [2022-07-14 14:05:19,836 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 555 transitions. Word has length 6 [2022-07-14 14:05:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:19,836 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 555 transitions. [2022-07-14 14:05:19,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:05:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 555 transitions. [2022-07-14 14:05:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 14:05:19,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:19,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:19,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 14:05:20,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:20,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash -703190218, now seen corresponding path program 1 times [2022-07-14 14:05:20,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:20,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941884607] [2022-07-14 14:05:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:20,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:20,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941884607] [2022-07-14 14:05:20,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941884607] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:05:20,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259219732] [2022-07-14 14:05:20,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:20,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:20,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:05:20,089 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 14:05:20,112 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 14:05:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:20,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:05:20,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:05:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:20,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:05:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:05:20,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259219732] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:05:20,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:05:20,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 14:05:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568898763] [2022-07-14 14:05:20,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:05:20,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:05:20,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:20,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:05:20,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:05:20,284 INFO L87 Difference]: Start difference. First operand 279 states and 555 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 14:05:20,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:20,519 INFO L93 Difference]: Finished difference Result 570 states and 1134 transitions. [2022-07-14 14:05:20,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:05:20,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) Word has length 13 [2022-07-14 14:05:20,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:20,523 INFO L225 Difference]: With dead ends: 570 [2022-07-14 14:05:20,523 INFO L226 Difference]: Without dead ends: 524 [2022-07-14 14:05:20,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:05:20,524 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 132 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:20,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 12 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:05:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-14 14:05:20,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-07-14 14:05:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 523 states have (on average 1.9923518164435947) internal successors, (1042), 523 states have internal predecessors, (1042), 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 14:05:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1042 transitions. [2022-07-14 14:05:20,555 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1042 transitions. Word has length 13 [2022-07-14 14:05:20,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:20,555 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 1042 transitions. [2022-07-14 14:05:20,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 14:05:20,556 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1042 transitions. [2022-07-14 14:05:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 14:05:20,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:20,556 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:20,583 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 14:05:20,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:05:20,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1743716986, now seen corresponding path program 2 times [2022-07-14 14:05:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:20,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592274870] [2022-07-14 14:05:20,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:20,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 14:05:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592274870] [2022-07-14 14:05:20,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592274870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:20,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:20,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:20,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204110286] [2022-07-14 14:05:20,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:20,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:20,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:20,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:20,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:20,865 INFO L87 Difference]: Start difference. First operand 524 states and 1042 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 14:05:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:20,943 INFO L93 Difference]: Finished difference Result 947 states and 1888 transitions. [2022-07-14 14:05:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:20,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 16 [2022-07-14 14:05:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:20,948 INFO L225 Difference]: With dead ends: 947 [2022-07-14 14:05:20,948 INFO L226 Difference]: Without dead ends: 947 [2022-07-14 14:05:20,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:20,949 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:20,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-07-14 14:05:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 900. [2022-07-14 14:05:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.9955506117908788) internal successors, (1794), 899 states have internal predecessors, (1794), 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 14:05:20,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1794 transitions. [2022-07-14 14:05:20,969 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1794 transitions. Word has length 16 [2022-07-14 14:05:20,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:20,970 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1794 transitions. [2022-07-14 14:05:20,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 14:05:20,970 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1794 transitions. [2022-07-14 14:05:20,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 14:05:20,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:05:20,979 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:05:20,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:05:20,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:05:20,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:05:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash 824299822, now seen corresponding path program 1 times [2022-07-14 14:05:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:05:20,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103977681] [2022-07-14 14:05:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:05:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:05:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:05:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-14 14:05:21,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:05:21,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103977681] [2022-07-14 14:05:21,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103977681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:05:21,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:05:21,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:05:21,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631147256] [2022-07-14 14:05:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:05:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:05:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:05:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:05:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:21,074 INFO L87 Difference]: Start difference. First operand 900 states and 1794 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 14:05:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:05:21,143 INFO L93 Difference]: Finished difference Result 853 states and 1700 transitions. [2022-07-14 14:05:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:05:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) Word has length 25 [2022-07-14 14:05:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:05:21,144 INFO L225 Difference]: With dead ends: 853 [2022-07-14 14:05:21,144 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:05:21,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:05:21,146 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:05:21,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:05:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:05:21,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:05:21,147 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 14:05:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:05:21,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-07-14 14:05:21,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:05:21,148 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:05:21,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 14:05:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:05:21,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:05:21,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-07-14 14:05:21,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:05:21,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:05:21,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:05:21,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-07-14 14:05:21,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:05:21,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:05:21,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:05:21,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-14 14:05:21,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:05:21,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:05:21,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:05:21,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:05:21,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:05:21,155 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-07-14 14:05:21,161 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:05:21,162 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:05:21,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:05:21 BasicIcfg [2022-07-14 14:05:21,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:05:21,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:05:21,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:05:21,168 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:05:21,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:04:31" (3/4) ... [2022-07-14 14:05:21,170 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:05:21,183 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:05:21,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-07-14 14:05:21,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-14 14:05:21,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:05:21,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 14:05:21,226 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:05:21,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:05:21,227 INFO L158 Benchmark]: Toolchain (without parser) took 51021.87ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.9MB in the beginning and 99.1MB in the end (delta: -21.2MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,227 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:05:21,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 590.90ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.9MB in the beginning and 107.6MB in the end (delta: -29.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.39ms. Allocated memory is still 134.2MB. Free memory was 107.5MB in the beginning and 107.3MB in the end (delta: 247.5kB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,228 INFO L158 Benchmark]: Boogie Preprocessor took 32.46ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,228 INFO L158 Benchmark]: RCFGBuilder took 620.62ms. Allocated memory is still 134.2MB. Free memory was 105.2MB in the beginning and 87.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,229 INFO L158 Benchmark]: TraceAbstraction took 49640.84ms. Allocated memory is still 134.2MB. Free memory was 86.3MB in the beginning and 35.2MB in the end (delta: 51.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,229 INFO L158 Benchmark]: Witness Printer took 58.90ms. Allocated memory is still 134.2MB. Free memory was 35.2MB in the beginning and 99.1MB in the end (delta: -63.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:05:21,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 590.90ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 77.9MB in the beginning and 107.6MB in the end (delta: -29.7MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.39ms. Allocated memory is still 134.2MB. Free memory was 107.5MB in the beginning and 107.3MB in the end (delta: 247.5kB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.46ms. Allocated memory is still 134.2MB. Free memory was 107.3MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 620.62ms. Allocated memory is still 134.2MB. Free memory was 105.2MB in the beginning and 87.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 49640.84ms. Allocated memory is still 134.2MB. Free memory was 86.3MB in the beginning and 35.2MB in the end (delta: 51.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Witness Printer took 58.90ms. Allocated memory is still 134.2MB. Free memory was 35.2MB in the beginning and 99.1MB in the end (delta: -63.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.9s, 158 PlacesBefore, 38 PlacesAfterwards, 160 TransitionsBefore, 37 TransitionsAfterwards, 5586 CoEnabledTransitionPairs, 6 FixpointIterations, 54 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 148 TotalNumberOfCompositions, 7911 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4352, positive: 4125, positive conditional: 0, positive unconditional: 4125, negative: 227, negative conditional: 0, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3504, positive: 3426, positive conditional: 0, positive unconditional: 3426, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3504, positive: 3392, positive conditional: 0, positive unconditional: 3392, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 112, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 18, unknown conditional: 0, unknown unconditional: 18] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40211, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 443, negative conditional: 0, negative unconditional: 443, unknown: 39673, unknown conditional: 0, unknown unconditional: 39673] ], Cache Queries: [ total: 4352, positive: 699, positive conditional: 0, positive unconditional: 699, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 3504, unknown conditional: 0, unknown unconditional: 3504] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 79, Positive conditional cache size: 0, Positive unconditional cache size: 79, Negative cache size: 41, Negative conditional cache size: 0, Negative unconditional cache size: 41 - 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: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1253]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1258]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1244]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1242]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 204 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 49.5s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 47.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 236 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 236 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 173 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 460 IncrementalHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 19 mSDtfsCounter, 460 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=900occurred in iteration=6, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 143 SizeOfPredicates, 0 NumberOfNonLiveVariables, 428 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 30/34 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:05:21,334 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