./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/hostid.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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/busybox-1.22.0/hostid.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:40:38,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:40:38,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:40:38,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:40:38,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:40:38,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:40:38,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:40:38,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:40:38,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:40:38,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:40:38,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:40:38,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:40:38,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:40:38,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:40:38,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:40:38,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:40:38,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:40:38,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:40:38,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:40:38,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:40:38,981 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:40:38,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:40:38,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:40:38,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:40:38,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:40:38,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:40:38,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:40:38,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:40:38,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:40:38,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:40:38,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:40:38,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:40:38,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:40:38,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:40:38,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:40:38,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:40:38,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:40:38,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:40:38,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:40:38,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:40:38,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:40:39,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:40:39,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-23 13:40:39,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:40:39,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:40:39,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:40:39,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:40:39,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:40:39,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:40:39,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:40:39,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:40:39,034 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:40:39,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:40:39,034 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:40:39,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:40:39,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:40:39,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:40:39,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:40:39,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:40:39,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:40:39,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:40:39,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:40:39,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:40:39,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:40:39,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:40:39,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:40:39,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:40:39,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:40:39,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de0fc62ae58e6d221c3194714bc6cea21909b72dd1b37b4566b87d84683f34c8 [2022-07-23 13:40:39,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:40:39,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:40:39,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:40:39,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:40:39,299 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:40:39,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-07-23 13:40:39,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda1e0a3b/5f49f3caecab429b88b290a031e4c7e7/FLAGd2e80de90 [2022-07-23 13:40:39,967 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:40:39,967 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/hostid.i [2022-07-23 13:40:39,993 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda1e0a3b/5f49f3caecab429b88b290a031e4c7e7/FLAGd2e80de90 [2022-07-23 13:40:40,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bda1e0a3b/5f49f3caecab429b88b290a031e4c7e7 [2022-07-23 13:40:40,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:40:40,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:40:40,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:40:40,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:40:40,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:40:40,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:40:40" (1/1) ... [2022-07-23 13:40:40,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8a190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:40, skipping insertion in model container [2022-07-23 13:40:40,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:40:40" (1/1) ... [2022-07-23 13:40:40,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:40:40,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:40:40,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:40:40,931 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:40:40,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:40:41,136 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:40:41,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41 WrapperNode [2022-07-23 13:40:41,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:40:41,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:40:41,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:40:41,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:40:41,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,227 INFO L137 Inliner]: procedures = 524, calls = 68, calls flagged for inlining = 7, calls inlined = 6, statements flattened = 145 [2022-07-23 13:40:41,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:40:41,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:40:41,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:40:41,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:40:41,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:40:41,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:40:41,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:40:41,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:40:41,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (1/1) ... [2022-07-23 13:40:41,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:40:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:41,324 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) [2022-07-23 13:40:41,326 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 [2022-07-23 13:40:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 13:40:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 13:40:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-07-23 13:40:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:40:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 13:40:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:40:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:40:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 13:40:41,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 13:40:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 13:40:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 13:40:41,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:40:41,662 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:40:41,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:40:41,897 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:40:41,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:40:41,902 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-23 13:40:41,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:41 BoogieIcfgContainer [2022-07-23 13:40:41,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:40:41,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:40:41,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:40:41,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:40:41,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:40:40" (1/3) ... [2022-07-23 13:40:41,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c19450e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:40:41, skipping insertion in model container [2022-07-23 13:40:41,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:41" (2/3) ... [2022-07-23 13:40:41,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c19450e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:40:41, skipping insertion in model container [2022-07-23 13:40:41,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:41" (3/3) ... [2022-07-23 13:40:41,911 INFO L111 eAbstractionObserver]: Analyzing ICFG hostid.i [2022-07-23 13:40:41,923 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:40:41,923 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-07-23 13:40:41,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:40:41,980 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@7fa4cc06, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1d46cfc8 [2022-07-23 13:40:41,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-07-23 13:40:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:41,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-23 13:40:41,990 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:41,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-23 13:40:41,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:41,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-23 13:40:42,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:42,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810119927] [2022-07-23 13:40:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:42,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:42,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:42,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810119927] [2022-07-23 13:40:42,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810119927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:42,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:42,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:42,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105524071] [2022-07-23 13:40:42,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:42,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:42,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:42,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:42,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:42,336 INFO L87 Difference]: Start difference. First operand has 47 states, 32 states have (on average 1.6875) internal successors, (54), 44 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-23 13:40:42,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:42,382 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-07-23 13:40:42,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:42,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-23 13:40:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:42,390 INFO L225 Difference]: With dead ends: 92 [2022-07-23 13:40:42,391 INFO L226 Difference]: Without dead ends: 46 [2022-07-23 13:40:42,393 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 [2022-07-23 13:40:42,399 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:42,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 92 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-07-23 13:40:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-07-23 13:40:42,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5) internal successors, (48), 43 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2022-07-23 13:40:42,441 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 4 [2022-07-23 13:40:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:42,441 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2022-07-23 13:40:42,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-07-23 13:40:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2022-07-23 13:40:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:40:42,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:42,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-07-23 13:40:42,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:40:42,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2022-07-23 13:40:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:42,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969216553] [2022-07-23 13:40:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:40:42,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:42,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969216553] [2022-07-23 13:40:42,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969216553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:42,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:42,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:42,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348807604] [2022-07-23 13:40:42,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:42,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:42,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:42,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:42,575 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-23 13:40:42,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:42,589 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2022-07-23 13:40:42,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:42,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-07-23 13:40:42,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:42,591 INFO L225 Difference]: With dead ends: 46 [2022-07-23 13:40:42,591 INFO L226 Difference]: Without dead ends: 45 [2022-07-23 13:40:42,591 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 [2022-07-23 13:40:42,592 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:42,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:42,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-23 13:40:42,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-23 13:40:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 32 states have (on average 1.46875) internal successors, (47), 42 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:42,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-07-23 13:40:42,599 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 7 [2022-07-23 13:40:42,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:42,599 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-07-23 13:40:42,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-23 13:40:42,600 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-07-23 13:40:42,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 13:40:42,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:42,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-07-23 13:40:42,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:40:42,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:42,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:42,601 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2022-07-23 13:40:42,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:42,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658329461] [2022-07-23 13:40:42,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:42,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:42,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:42,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658329461] [2022-07-23 13:40:42,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658329461] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:42,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896708641] [2022-07-23 13:40:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:42,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:42,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:42,672 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) [2022-07-23 13:40:42,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:40:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:42,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:42,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:42,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:42,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:42,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896708641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:42,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:42,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:42,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370974824] [2022-07-23 13:40:42,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:42,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:42,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:42,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:42,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:42,835 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-23 13:40:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:42,870 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-07-23 13:40:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:42,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-07-23 13:40:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:42,871 INFO L225 Difference]: With dead ends: 45 [2022-07-23 13:40:42,872 INFO L226 Difference]: Without dead ends: 44 [2022-07-23 13:40:42,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:42,874 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 35 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:42,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-23 13:40:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2022-07-23 13:40:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 39 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-07-23 13:40:42,884 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 8 [2022-07-23 13:40:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:42,885 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-07-23 13:40:42,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-07-23 13:40:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-07-23 13:40:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:40:42,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:42,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:42,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:43,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:43,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1124243910, now seen corresponding path program 1 times [2022-07-23 13:40:43,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:43,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447735397] [2022-07-23 13:40:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 13:40:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:43,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:43,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447735397] [2022-07-23 13:40:43,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447735397] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:43,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503389965] [2022-07-23 13:40:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:43,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:43,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:43,234 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) [2022-07-23 13:40:43,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:40:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:43,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:43,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:43,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:43,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503389965] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:43,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:43,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-23 13:40:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364032854] [2022-07-23 13:40:43,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:43,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:40:43,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:43,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:40:43,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:43,443 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:43,482 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2022-07-23 13:40:43,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:43,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-07-23 13:40:43,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:43,483 INFO L225 Difference]: With dead ends: 87 [2022-07-23 13:40:43,483 INFO L226 Difference]: Without dead ends: 51 [2022-07-23 13:40:43,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:43,484 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:43,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 82 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:43,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-23 13:40:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-23 13:40:43,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.358974358974359) internal successors, (53), 48 states have internal predecessors, (53), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-07-23 13:40:43,495 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 13 [2022-07-23 13:40:43,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:43,496 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-07-23 13:40:43,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-07-23 13:40:43,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-23 13:40:43,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:43,498 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:43,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:43,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-23 13:40:43,699 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:43,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1933933556, now seen corresponding path program 2 times [2022-07-23 13:40:43,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:43,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102119646] [2022-07-23 13:40:43,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:43,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:43,852 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:43,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102119646] [2022-07-23 13:40:43,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102119646] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510185479] [2022-07-23 13:40:43,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:43,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:43,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:43,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:43,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:40:43,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:43,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:43,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:43,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:44,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:44,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510185479] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:44,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:44,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-07-23 13:40:44,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962486844] [2022-07-23 13:40:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:44,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:40:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:40:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:40:44,007 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:44,076 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2022-07-23 13:40:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:40:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-07-23 13:40:44,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:44,079 INFO L225 Difference]: With dead ends: 51 [2022-07-23 13:40:44,080 INFO L226 Difference]: Without dead ends: 47 [2022-07-23 13:40:44,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:40:44,081 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 31 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:44,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 94 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:44,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-23 13:40:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-07-23 13:40:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-07-23 13:40:44,091 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 22 [2022-07-23 13:40:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:44,091 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-07-23 13:40:44,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-07-23 13:40:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-23 13:40:44,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:44,092 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:44,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:44,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:44,300 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:44,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:44,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1799100150, now seen corresponding path program 1 times [2022-07-23 13:40:44,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:44,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964005750] [2022-07-23 13:40:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:44,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:44,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:44,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964005750] [2022-07-23 13:40:44,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964005750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:44,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:44,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:40:44,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017678436] [2022-07-23 13:40:44,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:44,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:44,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:44,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:44,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,433 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:44,452 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2022-07-23 13:40:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:44,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-23 13:40:44,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:44,453 INFO L225 Difference]: With dead ends: 72 [2022-07-23 13:40:44,453 INFO L226 Difference]: Without dead ends: 50 [2022-07-23 13:40:44,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,454 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:44,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 71 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-07-23 13:40:44,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-07-23 13:40:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 47 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-07-23 13:40:44,460 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 28 [2022-07-23 13:40:44,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:44,460 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-07-23 13:40:44,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-07-23 13:40:44,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 13:40:44,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:44,461 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:44,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 13:40:44,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:44,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:44,462 INFO L85 PathProgramCache]: Analyzing trace with hash -93965126, now seen corresponding path program 1 times [2022-07-23 13:40:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:44,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022450345] [2022-07-23 13:40:44,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:44,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-23 13:40:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:44,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022450345] [2022-07-23 13:40:44,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022450345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:44,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:44,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:44,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673104897] [2022-07-23 13:40:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:44,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:44,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,625 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:44,651 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-07-23 13:40:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:44,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-23 13:40:44,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:44,653 INFO L225 Difference]: With dead ends: 75 [2022-07-23 13:40:44,655 INFO L226 Difference]: Without dead ends: 73 [2022-07-23 13:40:44,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,656 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:44,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 68 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:44,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-07-23 13:40:44,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2022-07-23 13:40:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 56 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2022-07-23 13:40:44,669 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 31 [2022-07-23 13:40:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:44,669 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2022-07-23 13:40:44,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2022-07-23 13:40:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 13:40:44,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:44,670 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:44,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 13:40:44,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:44,670 INFO L85 PathProgramCache]: Analyzing trace with hash -93965071, now seen corresponding path program 1 times [2022-07-23 13:40:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:44,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850552781] [2022-07-23 13:40:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-23 13:40:44,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:44,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850552781] [2022-07-23 13:40:44,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850552781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:44,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:44,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:44,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119289889] [2022-07-23 13:40:44,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:44,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:44,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:44,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,798 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:44,812 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-07-23 13:40:44,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:44,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-23 13:40:44,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:44,813 INFO L225 Difference]: With dead ends: 59 [2022-07-23 13:40:44,814 INFO L226 Difference]: Without dead ends: 58 [2022-07-23 13:40:44,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:44,814 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:44,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 69 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-23 13:40:44,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-07-23 13:40:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 55 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-07-23 13:40:44,827 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 31 [2022-07-23 13:40:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:44,827 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-07-23 13:40:44,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-07-23 13:40:44,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 13:40:44,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:44,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:44,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 13:40:44,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:44,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1382050174, now seen corresponding path program 1 times [2022-07-23 13:40:44,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:44,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084300872] [2022-07-23 13:40:44,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:44,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:44,971 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:44,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:44,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084300872] [2022-07-23 13:40:44,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084300872] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:44,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996609998] [2022-07-23 13:40:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:44,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:44,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:44,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:45,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:40:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:45,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:45,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 13:40:45,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 13:40:45,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996609998] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:45,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:45,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-07-23 13:40:45,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836087955] [2022-07-23 13:40:45,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:45,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 13:40:45,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 13:40:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:40:45,307 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:40:45,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:45,389 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2022-07-23 13:40:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 13:40:45,390 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2022-07-23 13:40:45,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:45,391 INFO L225 Difference]: With dead ends: 130 [2022-07-23 13:40:45,392 INFO L226 Difference]: Without dead ends: 87 [2022-07-23 13:40:45,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:40:45,394 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:45,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 207 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:45,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-07-23 13:40:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 71. [2022-07-23 13:40:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 68 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:45,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 77 transitions. [2022-07-23 13:40:45,400 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 77 transitions. Word has length 32 [2022-07-23 13:40:45,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:45,400 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 77 transitions. [2022-07-23 13:40:45,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 14 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:40:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 77 transitions. [2022-07-23 13:40:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 13:40:45,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:45,408 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:45,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:45,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:45,620 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash -450645462, now seen corresponding path program 1 times [2022-07-23 13:40:45,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446231484] [2022-07-23 13:40:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:45,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:45,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:45,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446231484] [2022-07-23 13:40:45,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446231484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:45,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:45,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:45,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675647584] [2022-07-23 13:40:45,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:45,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:45,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:45,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:45,717 INFO L87 Difference]: Start difference. First operand 71 states and 77 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:45,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:45,729 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-07-23 13:40:45,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:45,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-23 13:40:45,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:45,730 INFO L225 Difference]: With dead ends: 76 [2022-07-23 13:40:45,730 INFO L226 Difference]: Without dead ends: 74 [2022-07-23 13:40:45,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:45,731 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:45,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-23 13:40:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-23 13:40:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.1470588235294117) internal successors, (78), 71 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2022-07-23 13:40:45,736 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 52 [2022-07-23 13:40:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:45,736 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2022-07-23 13:40:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2022-07-23 13:40:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:40:45,737 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:45,738 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:45,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 13:40:45,739 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 888925871, now seen corresponding path program 1 times [2022-07-23 13:40:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:45,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454498796] [2022-07-23 13:40:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:45,833 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:45,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:45,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454498796] [2022-07-23 13:40:45,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454498796] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:45,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189603005] [2022-07-23 13:40:45,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:45,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:45,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:45,835 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:45,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:40:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:46,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:40:46,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-23 13:40:46,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:46,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189603005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:46,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:46,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-07-23 13:40:46,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208833618] [2022-07-23 13:40:46,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:46,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:40:46,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:46,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:40:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:46,072 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:46,136 INFO L93 Difference]: Finished difference Result 89 states and 96 transitions. [2022-07-23 13:40:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:40:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 55 [2022-07-23 13:40:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:46,137 INFO L225 Difference]: With dead ends: 89 [2022-07-23 13:40:46,137 INFO L226 Difference]: Without dead ends: 74 [2022-07-23 13:40:46,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:40:46,138 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:46,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 108 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-23 13:40:46,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-23 13:40:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 71 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2022-07-23 13:40:46,143 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 55 [2022-07-23 13:40:46,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:46,143 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2022-07-23 13:40:46,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,143 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2022-07-23 13:40:46,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:40:46,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:46,144 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:46,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:46,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-23 13:40:46,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:46,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1403960082, now seen corresponding path program 1 times [2022-07-23 13:40:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:46,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316079928] [2022-07-23 13:40:46,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:46,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:46,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:46,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316079928] [2022-07-23 13:40:46,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316079928] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:46,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071799601] [2022-07-23 13:40:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:46,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:46,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:46,528 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:46,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:40:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:46,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:46,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:46,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:46,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071799601] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:46,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:46,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-23 13:40:46,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063822671] [2022-07-23 13:40:46,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:46,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:40:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:46,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:40:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:46,872 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:46,898 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2022-07-23 13:40:46,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:46,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-23 13:40:46,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:46,900 INFO L225 Difference]: With dead ends: 118 [2022-07-23 13:40:46,900 INFO L226 Difference]: Without dead ends: 92 [2022-07-23 13:40:46,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:46,901 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 8 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:46,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 102 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:46,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-07-23 13:40:46,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-07-23 13:40:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 86 states have (on average 1.1046511627906976) internal successors, (95), 89 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2022-07-23 13:40:46,913 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 56 [2022-07-23 13:40:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:46,914 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2022-07-23 13:40:46,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2022-07-23 13:40:46,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-23 13:40:46,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:46,916 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:46,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:47,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:47,136 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:47,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:47,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2117424631, now seen corresponding path program 1 times [2022-07-23 13:40:47,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:47,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606506027] [2022-07-23 13:40:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:47,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-23 13:40:47,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:47,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606506027] [2022-07-23 13:40:47,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606506027] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:47,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883732293] [2022-07-23 13:40:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:47,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:47,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:47,250 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:47,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:40:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:47,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:47,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:47,586 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:47,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:47,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883732293] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:47,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:47,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-07-23 13:40:47,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401983957] [2022-07-23 13:40:47,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:47,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-23 13:40:47,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:47,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-23 13:40:47,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:40:47,696 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:47,775 INFO L93 Difference]: Finished difference Result 166 states and 188 transitions. [2022-07-23 13:40:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-23 13:40:47,780 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2022-07-23 13:40:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:47,781 INFO L225 Difference]: With dead ends: 166 [2022-07-23 13:40:47,781 INFO L226 Difference]: Without dead ends: 131 [2022-07-23 13:40:47,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-07-23 13:40:47,787 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:47,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 177 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:47,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-07-23 13:40:47,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2022-07-23 13:40:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 124 states have (on average 1.0725806451612903) internal successors, (133), 127 states have internal predecessors, (133), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2022-07-23 13:40:47,797 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 71 [2022-07-23 13:40:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:47,797 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2022-07-23 13:40:47,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2022-07-23 13:40:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-23 13:40:47,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:47,799 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:47,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:48,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:48,011 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:48,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash 889560927, now seen corresponding path program 1 times [2022-07-23 13:40:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:48,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831229894] [2022-07-23 13:40:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:48,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:48,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831229894] [2022-07-23 13:40:48,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831229894] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:48,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741848755] [2022-07-23 13:40:48,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:48,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:48,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:48,152 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:48,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:40:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:48,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:48,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:48,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:48,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741848755] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:48,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:48,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:48,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766129370] [2022-07-23 13:40:48,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:48,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:48,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:48,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:48,507 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:48,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:48,522 INFO L93 Difference]: Finished difference Result 130 states and 135 transitions. [2022-07-23 13:40:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:48,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-07-23 13:40:48,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:48,523 INFO L225 Difference]: With dead ends: 130 [2022-07-23 13:40:48,523 INFO L226 Difference]: Without dead ends: 129 [2022-07-23 13:40:48,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:48,524 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:48,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-07-23 13:40:48,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-07-23 13:40:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 124 states have (on average 1.064516129032258) internal successors, (132), 126 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 134 transitions. [2022-07-23 13:40:48,552 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 134 transitions. Word has length 90 [2022-07-23 13:40:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:48,552 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 134 transitions. [2022-07-23 13:40:48,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 134 transitions. [2022-07-23 13:40:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-23 13:40:48,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:48,553 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:48,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:48,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 13:40:48,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:48,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:48,776 INFO L85 PathProgramCache]: Analyzing trace with hash 169562562, now seen corresponding path program 2 times [2022-07-23 13:40:48,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:48,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439813393] [2022-07-23 13:40:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:48,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:48,951 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-07-23 13:40:48,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:48,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439813393] [2022-07-23 13:40:48,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439813393] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:48,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549291455] [2022-07-23 13:40:48,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:48,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:48,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:48,954 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:48,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:40:49,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:49,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:49,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:49,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-07-23 13:40:49,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-07-23 13:40:49,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549291455] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:49,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:49,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-23 13:40:49,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73283415] [2022-07-23 13:40:49,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:49,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:40:49,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:49,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:40:49,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:40:49,448 INFO L87 Difference]: Start difference. First operand 129 states and 134 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:49,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:49,504 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2022-07-23 13:40:49,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:49,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-07-23 13:40:49,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:49,505 INFO L225 Difference]: With dead ends: 129 [2022-07-23 13:40:49,505 INFO L226 Difference]: Without dead ends: 113 [2022-07-23 13:40:49,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 182 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:49,508 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:49,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 91 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-07-23 13:40:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-07-23 13:40:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 109 states have (on average 1.0458715596330275) internal successors, (114), 110 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 116 transitions. [2022-07-23 13:40:49,515 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 116 transitions. Word has length 92 [2022-07-23 13:40:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:49,515 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 116 transitions. [2022-07-23 13:40:49,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 116 transitions. [2022-07-23 13:40:49,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-23 13:40:49,516 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:49,517 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:49,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:49,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-23 13:40:49,732 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1404007810, now seen corresponding path program 2 times [2022-07-23 13:40:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:49,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646432520] [2022-07-23 13:40:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:49,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:49,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646432520] [2022-07-23 13:40:49,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646432520] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:49,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992184457] [2022-07-23 13:40:49,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:49,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:49,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:49,950 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:49,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:40:50,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:50,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:50,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:50,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:50,455 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-23 13:40:50,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:50,555 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-23 13:40:50,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992184457] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:50,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:50,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-07-23 13:40:50,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161588544] [2022-07-23 13:40:50,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:50,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 13:40:50,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:50,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 13:40:50,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:50,557 INFO L87 Difference]: Start difference. First operand 113 states and 116 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:50,630 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2022-07-23 13:40:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 13:40:50,630 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-07-23 13:40:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:50,631 INFO L225 Difference]: With dead ends: 148 [2022-07-23 13:40:50,631 INFO L226 Difference]: Without dead ends: 147 [2022-07-23 13:40:50,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:40:50,632 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:50,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:50,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-23 13:40:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 112. [2022-07-23 13:40:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 109 states have (on average 1.036697247706422) internal successors, (113), 109 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2022-07-23 13:40:50,638 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 110 [2022-07-23 13:40:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:50,638 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2022-07-23 13:40:50,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2022-07-23 13:40:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-23 13:40:50,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:50,639 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:50,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-23 13:40:50,860 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-07-23 13:40:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash 574569236, now seen corresponding path program 1 times [2022-07-23 13:40:50,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610012964] [2022-07-23 13:40:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:51,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:51,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610012964] [2022-07-23 13:40:51,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610012964] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:51,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34557630] [2022-07-23 13:40:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:51,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:51,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:51,116 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:51,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:40:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:51,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:51,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:51,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:51,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34557630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:51,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:51,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:51,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092420744] [2022-07-23 13:40:51,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:51,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:51,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:51,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:51,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:51,714 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:51,740 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2022-07-23 13:40:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:51,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-07-23 13:40:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:51,741 INFO L225 Difference]: With dead ends: 112 [2022-07-23 13:40:51,741 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 13:40:51,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:51,742 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:51,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 13:40:51,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 13:40:51,743 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) [2022-07-23 13:40:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 13:40:51,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2022-07-23 13:40:51,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:51,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 13:40:51,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:51,744 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 13:40:51,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 13:40:51,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-07-23 13:40:51,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-07-23 13:40:51,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-07-23 13:40:51,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-07-23 13:40:51,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-07-23 13:40:51,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-07-23 13:40:51,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-07-23 13:40:51,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:51,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-23 13:40:51,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-23 13:40:52,364 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1889-2(lines 1889 1896) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1889-3(line 1889) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L895 garLoopResultBuilder]: At program point L1885(line 1885) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2022-07-23 13:40:52,365 INFO L895 garLoopResultBuilder]: At program point L1889-4(lines 1889 1896) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse2 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~4#1| 2147483646) (<= 1 |ULTIMATE.start_main_~i~4#1|) .cse1 .cse2) (and (= |ULTIMATE.start_main_~i~4#1| 0) .cse0 .cse1 .cse2))) [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1885-1(line 1885) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1889-5(lines 1889 1896) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1782(lines 1782 1783) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1782-2(lines 1782 1783) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1898-2(lines 1898 1899) no Hoare annotation was computed. [2022-07-23 13:40:52,365 INFO L899 garLoopResultBuilder]: For program point L1898-3(line 1898) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L895 garLoopResultBuilder]: At program point L1898-4(lines 1898 1899) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse2 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~i~5#1| 0) .cse1 .cse2) (and .cse0 (<= |ULTIMATE.start_main_~i~5#1| 2147483646) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~5#1|)))) [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point L1898-5(lines 1898 1899) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point L1894-2(lines 1894 1895) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point L1894-3(line 1894) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L895 garLoopResultBuilder]: At program point L1894-4(lines 1894 1895) the Hoare annotation is: (let ((.cse7 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse4 (< |ULTIMATE.start_main_~i~4#1| 2147483646)) (.cse6 (= |ULTIMATE.start_main_~i~4#1| 0)) (.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse2 (= |ULTIMATE.start_main_~j~0#1| 0)) (.cse3 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse5 (<= 1 |ULTIMATE.start_main_~i~3#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7 .cse0 .cse3 .cse5) (and .cse7 .cse0 .cse1 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse2 .cse3 .cse5))) [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point L1886(line 1886) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-23 13:40:52,366 INFO L895 garLoopResultBuilder]: At program point L1775(lines 1771 1776) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2022-07-23 13:40:52,366 INFO L902 garLoopResultBuilder]: At program point L1903(lines 1875 1904) the Hoare annotation is: true [2022-07-23 13:40:52,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1767(lines 1767 1770) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1879) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1887(line 1887) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1887-1(line 1887) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1887) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1879-2(lines 1879 1880) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1879-3(line 1879) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L895 garLoopResultBuilder]: At program point L1879-4(lines 1879 1880) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~3#1| 0) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point L1879-5(lines 1879 1880) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1889) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L895 garLoopResultBuilder]: At program point L1793(lines 1791 1794) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2022-07-23 13:40:52,367 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1886) no Hoare annotation was computed. [2022-07-23 13:40:52,367 INFO L895 garLoopResultBuilder]: At program point L1789(lines 1780 1790) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_main_~i~3#1|)) [2022-07-23 13:40:52,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1898) no Hoare annotation was computed. [2022-07-23 13:40:52,368 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1894) no Hoare annotation was computed. [2022-07-23 13:40:52,368 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2022-07-23 13:40:52,368 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-07-23 13:40:52,368 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2022-07-23 13:40:52,368 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2022-07-23 13:40:52,371 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:52,372 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:40:52,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:40:52 BoogieIcfgContainer [2022-07-23 13:40:52,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:40:52,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:40:52,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:40:52,388 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:40:52,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:41" (3/4) ... [2022-07-23 13:40:52,391 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-23 13:40:52,397 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-23 13:40:52,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-07-23 13:40:52,401 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-23 13:40:52,402 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-23 13:40:52,402 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-23 13:40:52,402 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-23 13:40:52,435 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 13:40:52,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:40:52,436 INFO L158 Benchmark]: Toolchain (without parser) took 12218.64ms. Allocated memory was 100.7MB in the beginning and 216.0MB in the end (delta: 115.3MB). Free memory was 63.7MB in the beginning and 164.3MB in the end (delta: -100.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,436 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:40:52,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.92ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 63.5MB in the beginning and 81.8MB in the end (delta: -18.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.19ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 78.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,437 INFO L158 Benchmark]: Boogie Preprocessor took 62.16ms. Allocated memory is still 127.9MB. Free memory was 78.2MB in the beginning and 75.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,437 INFO L158 Benchmark]: RCFGBuilder took 612.52ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 90.9MB in the end (delta: -15.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,437 INFO L158 Benchmark]: TraceAbstraction took 10482.44ms. Allocated memory was 127.9MB in the beginning and 216.0MB in the end (delta: 88.1MB). Free memory was 90.9MB in the beginning and 167.5MB in the end (delta: -76.6MB). Peak memory consumption was 127.2MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,437 INFO L158 Benchmark]: Witness Printer took 46.95ms. Allocated memory is still 216.0MB. Free memory was 167.5MB in the beginning and 164.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:40:52,439 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 100.7MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 918.92ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 63.5MB in the beginning and 81.8MB in the end (delta: -18.3MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.19ms. Allocated memory is still 127.9MB. Free memory was 81.8MB in the beginning and 78.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.16ms. Allocated memory is still 127.9MB. Free memory was 78.2MB in the beginning and 75.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 612.52ms. Allocated memory is still 127.9MB. Free memory was 75.5MB in the beginning and 90.9MB in the end (delta: -15.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10482.44ms. Allocated memory was 127.9MB in the beginning and 216.0MB in the end (delta: 88.1MB). Free memory was 90.9MB in the beginning and 167.5MB in the end (delta: -76.6MB). Peak memory consumption was 127.2MB. Max. memory is 16.1GB. * Witness Printer took 46.95ms. Allocated memory is still 216.0MB. Free memory was 167.5MB in the beginning and 164.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1879]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1886]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1887]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1894]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1889]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1898]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 10.4s, OverallIterations: 17, TraceHistogramMax: 20, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 216 mSDsluCounter, 1540 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 944 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 596 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1106 GetRequests, 1024 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=13, InterpolantAutomatonStates: 94, 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, 17 MinimizatonAttempts, 68 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 13 PreInvPairs, 59 NumberOfFragments, 180 HoareAnnotationTreeSize, 13 FomulaSimplifications, 310 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1162 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1473 NumberOfCodeBlocks, 1297 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1813 ConstructedInterpolants, 0 QuantifiedInterpolants, 3129 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4908 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 34 InterpolantComputations, 11 PerfectInterpolantSequences, 5461/6887 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 12 specifications checked. All of them hold - InvariantResult [Line: 1771]: Loop Invariant Derived loop invariant: (1 <= argc && argc <= 10000) && 1 <= i - InvariantResult [Line: 1791]: Loop Invariant Derived loop invariant: (1 <= argc && argc <= 10000) && 1 <= i - InvariantResult [Line: 1879]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 1889]: Loop Invariant Derived loop invariant: (((((1 <= j && 1 <= argc) && i <= 2147483646) && 1 <= i) && argc <= 10000) && 1 <= i) || (((i == 0 && 1 <= argc) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1780]: Loop Invariant Derived loop invariant: (1 <= argc && argc <= 10000) && 1 <= i - InvariantResult [Line: 1894]: Loop Invariant Derived loop invariant: (((((((1 <= argc && 1 <= i) && j == 0) && argc <= 10000) && i < 2147483646) && 1 <= i) || ((((i == 0 && 1 <= j) && 1 <= argc) && argc <= 10000) && 1 <= i)) || (((((1 <= j && 1 <= argc) && 1 <= i) && argc <= 10000) && i < 2147483646) && 1 <= i)) || ((((i == 0 && 1 <= argc) && j == 0) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1875]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1898]: Loop Invariant Derived loop invariant: (((1 <= argc && i == 0) && argc <= 10000) && 1 <= i) || ((((1 <= argc && i <= 2147483646) && argc <= 10000) && 1 <= i) && 1 <= i) RESULT: Ultimate proved your program to be correct! [2022-07-23 13:40:52,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE