./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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/psyco/psyco_abp_1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 167b835a28653099821c6834c1cc6b8e30303efac27d569b21e43e89592d7586 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:54:34,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:54:34,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:54:34,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:54:34,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:54:34,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:54:34,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:54:34,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:54:34,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:54:34,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:54:34,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:54:34,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:54:34,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:54:34,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:54:34,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:54:34,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:54:34,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:54:34,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:54:34,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:54:34,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:54:34,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:54:34,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:54:34,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:54:34,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:54:34,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:54:34,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:54:34,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:54:34,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:54:34,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:54:34,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:54:34,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:54:34,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:54:34,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:54:34,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:54:34,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:54:34,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:54:34,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:54:34,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:54:34,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:54:34,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:54:35,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:54:35,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 01:54:35,033 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:54:35,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:54:35,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:54:35,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:54:35,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:54:35,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:54:35,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:54:35,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:54:35,036 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:54:35,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:54:35,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 01:54:35,038 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:54:35,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 01:54:35,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:54:35,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:54:35,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:54:35,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:35,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:54:35,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:54:35,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 01:54:35,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:54:35,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:54:35,041 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:54:35,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 01:54:35,041 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:54:35,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:54:35,041 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:54:35,042 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167b835a28653099821c6834c1cc6b8e30303efac27d569b21e43e89592d7586 [2023-02-15 01:54:35,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:54:35,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:54:35,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:54:35,249 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:54:35,249 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:54:35,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-2.c [2023-02-15 01:54:36,340 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:54:36,557 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:54:36,558 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c [2023-02-15 01:54:36,567 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cfe30d9/9a38ccf36a4e409dbc7f4bf44326b7cc/FLAGa3b7e3d8c [2023-02-15 01:54:36,580 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cfe30d9/9a38ccf36a4e409dbc7f4bf44326b7cc [2023-02-15 01:54:36,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:54:36,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:54:36,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:36,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:54:36,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:54:36,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:36,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d923a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36, skipping insertion in model container [2023-02-15 01:54:36,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:36,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:54:36,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:54:36,840 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c[24706,24719] [2023-02-15 01:54:36,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:36,858 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:54:36,931 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c[24706,24719] [2023-02-15 01:54:36,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:36,951 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:54:36,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36 WrapperNode [2023-02-15 01:54:36,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:36,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:36,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:54:36,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:54:36,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:36,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,025 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 467 [2023-02-15 01:54:37,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:37,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:54:37,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:54:37,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:54:37,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:54:37,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:54:37,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:54:37,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:54:37,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (1/1) ... [2023-02-15 01:54:37,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:37,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:37,142 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) [2023-02-15 01:54:37,182 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 [2023-02-15 01:54:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 01:54:37,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:54:37,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:54:37,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 01:54:37,288 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:54:37,289 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:54:38,045 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:54:38,052 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:54:38,056 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 01:54:38,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:54:38 BoogieIcfgContainer [2023-02-15 01:54:38,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:54:38,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:54:38,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:54:38,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:54:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:54:36" (1/3) ... [2023-02-15 01:54:38,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d6d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:54:38, skipping insertion in model container [2023-02-15 01:54:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:36" (2/3) ... [2023-02-15 01:54:38,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8d6d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:54:38, skipping insertion in model container [2023-02-15 01:54:38,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:54:38" (3/3) ... [2023-02-15 01:54:38,068 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-2.c [2023-02-15 01:54:38,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:54:38,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-02-15 01:54:38,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:54:38,155 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1911ecfd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:54:38,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-02-15 01:54:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 151 states have (on average 1.9602649006622517) internal successors, (296), 193 states have internal predecessors, (296), 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) [2023-02-15 01:54:38,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 01:54:38,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:38,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:38,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:38,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1422697969, now seen corresponding path program 1 times [2023-02-15 01:54:38,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:38,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616231211] [2023-02-15 01:54:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:38,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:38,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:38,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:38,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616231211] [2023-02-15 01:54:38,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616231211] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:38,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:38,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:38,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90827946] [2023-02-15 01:54:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:38,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:38,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:38,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:38,441 INFO L87 Difference]: Start difference. First operand has 194 states, 151 states have (on average 1.9602649006622517) internal successors, (296), 193 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-02-15 01:54:38,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:38,592 INFO L93 Difference]: Finished difference Result 389 states and 596 transitions. [2023-02-15 01:54:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:38,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-02-15 01:54:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:38,606 INFO L225 Difference]: With dead ends: 389 [2023-02-15 01:54:38,607 INFO L226 Difference]: Without dead ends: 166 [2023-02-15 01:54:38,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:38,615 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 4 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:38,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 534 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-02-15 01:54:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2023-02-15 01:54:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 124 states have (on average 1.685483870967742) internal successors, (209), 165 states have internal predecessors, (209), 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) [2023-02-15 01:54:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2023-02-15 01:54:38,668 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 10 [2023-02-15 01:54:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:38,669 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2023-02-15 01:54:38,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-02-15 01:54:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2023-02-15 01:54:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 01:54:38,670 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:38,670 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:38,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 01:54:38,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash 658032322, now seen corresponding path program 1 times [2023-02-15 01:54:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:38,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139750133] [2023-02-15 01:54:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:38,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:38,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139750133] [2023-02-15 01:54:38,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139750133] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:38,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:38,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:54:38,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681783972] [2023-02-15 01:54:38,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:38,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:38,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:38,782 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-02-15 01:54:38,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:38,916 INFO L93 Difference]: Finished difference Result 321 states and 407 transitions. [2023-02-15 01:54:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:38,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2023-02-15 01:54:38,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:38,921 INFO L225 Difference]: With dead ends: 321 [2023-02-15 01:54:38,921 INFO L226 Difference]: Without dead ends: 261 [2023-02-15 01:54:38,926 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 [2023-02-15 01:54:38,927 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 151 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:38,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 326 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-02-15 01:54:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 252. [2023-02-15 01:54:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 210 states have (on average 1.6238095238095238) internal successors, (341), 251 states have internal predecessors, (341), 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) [2023-02-15 01:54:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2023-02-15 01:54:38,942 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 15 [2023-02-15 01:54:38,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:38,942 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2023-02-15 01:54:38,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-02-15 01:54:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2023-02-15 01:54:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 01:54:38,943 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:38,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:38,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 01:54:38,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1008871492, now seen corresponding path program 1 times [2023-02-15 01:54:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:38,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514674128] [2023-02-15 01:54:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:39,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514674128] [2023-02-15 01:54:39,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514674128] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:39,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:39,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:54:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561690913] [2023-02-15 01:54:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:39,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:39,060 INFO L87 Difference]: Start difference. First operand 252 states and 341 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-02-15 01:54:39,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:39,108 INFO L93 Difference]: Finished difference Result 355 states and 487 transitions. [2023-02-15 01:54:39,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:39,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-02-15 01:54:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:39,110 INFO L225 Difference]: With dead ends: 355 [2023-02-15 01:54:39,110 INFO L226 Difference]: Without dead ends: 347 [2023-02-15 01:54:39,111 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 [2023-02-15 01:54:39,112 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 123 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:39,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 381 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:39,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-02-15 01:54:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 342. [2023-02-15 01:54:39,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 300 states have (on average 1.5766666666666667) internal successors, (473), 341 states have internal predecessors, (473), 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) [2023-02-15 01:54:39,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 473 transitions. [2023-02-15 01:54:39,126 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 473 transitions. Word has length 17 [2023-02-15 01:54:39,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:39,127 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 473 transitions. [2023-02-15 01:54:39,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-02-15 01:54:39,127 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 473 transitions. [2023-02-15 01:54:39,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 01:54:39,129 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:39,129 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:39,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 01:54:39,129 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:39,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:39,130 INFO L85 PathProgramCache]: Analyzing trace with hash 166348385, now seen corresponding path program 1 times [2023-02-15 01:54:39,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:39,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223908420] [2023-02-15 01:54:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 01:54:39,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:39,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223908420] [2023-02-15 01:54:39,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223908420] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:39,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:39,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848913273] [2023-02-15 01:54:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:39,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:39,211 INFO L87 Difference]: Start difference. First operand 342 states and 473 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-15 01:54:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:39,237 INFO L93 Difference]: Finished difference Result 696 states and 970 transitions. [2023-02-15 01:54:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-15 01:54:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:39,239 INFO L225 Difference]: With dead ends: 696 [2023-02-15 01:54:39,239 INFO L226 Difference]: Without dead ends: 357 [2023-02-15 01:54:39,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:39,241 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:39,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 354 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-02-15 01:54:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2023-02-15 01:54:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 315 states have (on average 1.5492063492063493) internal successors, (488), 356 states have internal predecessors, (488), 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) [2023-02-15 01:54:39,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 488 transitions. [2023-02-15 01:54:39,251 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 488 transitions. Word has length 25 [2023-02-15 01:54:39,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:39,251 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 488 transitions. [2023-02-15 01:54:39,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-02-15 01:54:39,252 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 488 transitions. [2023-02-15 01:54:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 01:54:39,253 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:39,253 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:39,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 01:54:39,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:39,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:39,254 INFO L85 PathProgramCache]: Analyzing trace with hash 110617732, now seen corresponding path program 1 times [2023-02-15 01:54:39,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:39,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499059967] [2023-02-15 01:54:39,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,315 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:39,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499059967] [2023-02-15 01:54:39,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499059967] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:39,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022742110] [2023-02-15 01:54:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:39,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:39,320 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) [2023-02-15 01:54:39,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 01:54:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:54:39,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:39,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:39,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022742110] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:39,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:39,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-02-15 01:54:39,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387053523] [2023-02-15 01:54:39,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:39,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:54:39,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:39,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:54:39,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:39,502 INFO L87 Difference]: Start difference. First operand 357 states and 488 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-02-15 01:54:39,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:39,597 INFO L93 Difference]: Finished difference Result 366 states and 494 transitions. [2023-02-15 01:54:39,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:54:39,599 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), 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 28 [2023-02-15 01:54:39,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:39,601 INFO L225 Difference]: With dead ends: 366 [2023-02-15 01:54:39,601 INFO L226 Difference]: Without dead ends: 349 [2023-02-15 01:54:39,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:39,602 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 295 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:39,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 394 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-02-15 01:54:39,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 340. [2023-02-15 01:54:39,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 315 states have (on average 1.4952380952380953) internal successors, (471), 339 states have internal predecessors, (471), 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) [2023-02-15 01:54:39,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 471 transitions. [2023-02-15 01:54:39,614 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 471 transitions. Word has length 28 [2023-02-15 01:54:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:39,614 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 471 transitions. [2023-02-15 01:54:39,615 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), 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) [2023-02-15 01:54:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 471 transitions. [2023-02-15 01:54:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 01:54:39,620 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:39,620 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:39,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:39,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:39,826 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:39,828 INFO L85 PathProgramCache]: Analyzing trace with hash -865818952, now seen corresponding path program 1 times [2023-02-15 01:54:39,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:39,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485878745] [2023-02-15 01:54:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-15 01:54:39,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:39,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485878745] [2023-02-15 01:54:39,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485878745] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:39,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:39,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:39,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368397707] [2023-02-15 01:54:39,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:39,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:39,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:39,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:39,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:39,887 INFO L87 Difference]: Start difference. First operand 340 states and 471 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-15 01:54:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:39,902 INFO L93 Difference]: Finished difference Result 680 states and 942 transitions. [2023-02-15 01:54:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:39,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 29 [2023-02-15 01:54:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:39,904 INFO L225 Difference]: With dead ends: 680 [2023-02-15 01:54:39,904 INFO L226 Difference]: Without dead ends: 340 [2023-02-15 01:54:39,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:39,911 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:39,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-02-15 01:54:39,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2023-02-15 01:54:39,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 315 states have (on average 1.4857142857142858) internal successors, (468), 339 states have internal predecessors, (468), 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) [2023-02-15 01:54:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 468 transitions. [2023-02-15 01:54:39,922 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 468 transitions. Word has length 29 [2023-02-15 01:54:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:39,922 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 468 transitions. [2023-02-15 01:54:39,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-02-15 01:54:39,923 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 468 transitions. [2023-02-15 01:54:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 01:54:39,924 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:39,924 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:39,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 01:54:39,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:39,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash -865817286, now seen corresponding path program 1 times [2023-02-15 01:54:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:39,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465504303] [2023-02-15 01:54:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:40,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465504303] [2023-02-15 01:54:40,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465504303] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:40,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851493439] [2023-02-15 01:54:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:40,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:40,004 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) [2023-02-15 01:54:40,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 01:54:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:54:40,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851493439] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:40,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:40,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-15 01:54:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941859060] [2023-02-15 01:54:40,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:40,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 01:54:40,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:40,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 01:54:40,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 01:54:40,187 INFO L87 Difference]: Start difference. First operand 340 states and 468 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-02-15 01:54:40,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:40,338 INFO L93 Difference]: Finished difference Result 485 states and 667 transitions. [2023-02-15 01:54:40,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 01:54:40,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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 29 [2023-02-15 01:54:40,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:40,341 INFO L225 Difference]: With dead ends: 485 [2023-02-15 01:54:40,342 INFO L226 Difference]: Without dead ends: 416 [2023-02-15 01:54:40,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 01:54:40,343 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 434 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:40,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 581 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:40,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-02-15 01:54:40,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 394. [2023-02-15 01:54:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 384 states have (on average 1.4869791666666667) internal successors, (571), 393 states have internal predecessors, (571), 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) [2023-02-15 01:54:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 571 transitions. [2023-02-15 01:54:40,352 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 571 transitions. Word has length 29 [2023-02-15 01:54:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:40,353 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 571 transitions. [2023-02-15 01:54:40,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-02-15 01:54:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 571 transitions. [2023-02-15 01:54:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 01:54:40,356 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:40,356 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:40,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:40,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-02-15 01:54:40,565 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1173253948, now seen corresponding path program 1 times [2023-02-15 01:54:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:40,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853484851] [2023-02-15 01:54:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853484851] [2023-02-15 01:54:40,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853484851] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223365778] [2023-02-15 01:54:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:40,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:40,623 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) [2023-02-15 01:54:40,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 01:54:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:54:40,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:40,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223365778] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:40,775 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:40,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-15 01:54:40,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706584448] [2023-02-15 01:54:40,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:40,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 01:54:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 01:54:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-02-15 01:54:40,778 INFO L87 Difference]: Start difference. First operand 394 states and 571 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2023-02-15 01:54:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:40,881 INFO L93 Difference]: Finished difference Result 691 states and 1009 transitions. [2023-02-15 01:54:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 01:54:40,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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 31 [2023-02-15 01:54:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:40,885 INFO L225 Difference]: With dead ends: 691 [2023-02-15 01:54:40,885 INFO L226 Difference]: Without dead ends: 683 [2023-02-15 01:54:40,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-15 01:54:40,887 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 738 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:40,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 740 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-02-15 01:54:40,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 576. [2023-02-15 01:54:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 570 states have (on average 1.4578947368421054) internal successors, (831), 575 states have internal predecessors, (831), 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) [2023-02-15 01:54:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 831 transitions. [2023-02-15 01:54:40,900 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 831 transitions. Word has length 31 [2023-02-15 01:54:40,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:40,900 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 831 transitions. [2023-02-15 01:54:40,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 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) [2023-02-15 01:54:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 831 transitions. [2023-02-15 01:54:40,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 01:54:40,901 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:40,901 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:40,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:41,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:41,109 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:41,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:41,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2011134348, now seen corresponding path program 1 times [2023-02-15 01:54:41,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:41,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038128909] [2023-02-15 01:54:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:41,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:41,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038128909] [2023-02-15 01:54:41,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038128909] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:41,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19076749] [2023-02-15 01:54:41,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:41,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:41,181 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) [2023-02-15 01:54:41,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 01:54:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:54:41,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:41,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:41,368 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:41,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19076749] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:41,368 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:41,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-02-15 01:54:41,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376888462] [2023-02-15 01:54:41,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:41,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 01:54:41,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:41,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 01:54:41,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 01:54:41,370 INFO L87 Difference]: Start difference. First operand 576 states and 831 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 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) [2023-02-15 01:54:41,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:41,419 INFO L93 Difference]: Finished difference Result 676 states and 973 transitions. [2023-02-15 01:54:41,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:54:41,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 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 32 [2023-02-15 01:54:41,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:41,431 INFO L225 Difference]: With dead ends: 676 [2023-02-15 01:54:41,431 INFO L226 Difference]: Without dead ends: 672 [2023-02-15 01:54:41,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-02-15 01:54:41,432 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 363 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:41,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 259 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:41,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-02-15 01:54:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 291. [2023-02-15 01:54:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 289 states have (on average 1.4359861591695502) internal successors, (415), 290 states have internal predecessors, (415), 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) [2023-02-15 01:54:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 415 transitions. [2023-02-15 01:54:41,441 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 415 transitions. Word has length 32 [2023-02-15 01:54:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 415 transitions. [2023-02-15 01:54:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 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) [2023-02-15 01:54:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 415 transitions. [2023-02-15 01:54:41,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 01:54:41,458 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:41,458 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:41,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:41,659 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 [2023-02-15 01:54:41,659 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1692190382, now seen corresponding path program 1 times [2023-02-15 01:54:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:41,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220812804] [2023-02-15 01:54:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 01:54:41,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:41,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220812804] [2023-02-15 01:54:41,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220812804] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:41,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:41,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988071738] [2023-02-15 01:54:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:41,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:41,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,694 INFO L87 Difference]: Start difference. First operand 291 states and 415 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-02-15 01:54:41,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:41,717 INFO L93 Difference]: Finished difference Result 510 states and 730 transitions. [2023-02-15 01:54:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 48 [2023-02-15 01:54:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:41,720 INFO L225 Difference]: With dead ends: 510 [2023-02-15 01:54:41,720 INFO L226 Difference]: Without dead ends: 222 [2023-02-15 01:54:41,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,721 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 22 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:41,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 238 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-02-15 01:54:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2023-02-15 01:54:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.4181818181818182) internal successors, (312), 221 states have internal predecessors, (312), 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) [2023-02-15 01:54:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 312 transitions. [2023-02-15 01:54:41,729 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 312 transitions. Word has length 48 [2023-02-15 01:54:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:41,729 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 312 transitions. [2023-02-15 01:54:41,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-02-15 01:54:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 312 transitions. [2023-02-15 01:54:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 01:54:41,730 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:41,731 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:41,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 01:54:41,731 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:41,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 421641933, now seen corresponding path program 1 times [2023-02-15 01:54:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:41,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651164919] [2023-02-15 01:54:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,791 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-15 01:54:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:41,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651164919] [2023-02-15 01:54:41,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651164919] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:41,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:41,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:41,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874134993] [2023-02-15 01:54:41,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:41,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:41,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:41,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:41,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,794 INFO L87 Difference]: Start difference. First operand 222 states and 312 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-02-15 01:54:41,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:41,829 INFO L93 Difference]: Finished difference Result 457 states and 649 transitions. [2023-02-15 01:54:41,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:41,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 56 [2023-02-15 01:54:41,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:41,831 INFO L225 Difference]: With dead ends: 457 [2023-02-15 01:54:41,831 INFO L226 Difference]: Without dead ends: 238 [2023-02-15 01:54:41,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,832 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 30 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:41,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 234 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:41,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-02-15 01:54:41,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-02-15 01:54:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 236 states have (on average 1.3983050847457628) internal successors, (330), 237 states have internal predecessors, (330), 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) [2023-02-15 01:54:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 330 transitions. [2023-02-15 01:54:41,840 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 330 transitions. Word has length 56 [2023-02-15 01:54:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:41,840 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 330 transitions. [2023-02-15 01:54:41,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2023-02-15 01:54:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 330 transitions. [2023-02-15 01:54:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-15 01:54:41,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:41,841 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:41,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-15 01:54:41,842 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:41,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:41,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2134897336, now seen corresponding path program 1 times [2023-02-15 01:54:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:41,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143701406] [2023-02-15 01:54:41,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:54:41,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:41,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143701406] [2023-02-15 01:54:41,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143701406] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:41,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:41,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:41,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483670138] [2023-02-15 01:54:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:41,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:41,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:41,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:41,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,921 INFO L87 Difference]: Start difference. First operand 238 states and 330 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-02-15 01:54:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:41,945 INFO L93 Difference]: Finished difference Result 449 states and 621 transitions. [2023-02-15 01:54:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 64 [2023-02-15 01:54:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:41,947 INFO L225 Difference]: With dead ends: 449 [2023-02-15 01:54:41,947 INFO L226 Difference]: Without dead ends: 214 [2023-02-15 01:54:41,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:41,948 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 55 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:41,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 171 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:41,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-15 01:54:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-02-15 01:54:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 1.349056603773585) internal successors, (286), 213 states have internal predecessors, (286), 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) [2023-02-15 01:54:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 286 transitions. [2023-02-15 01:54:41,955 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 286 transitions. Word has length 64 [2023-02-15 01:54:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:41,955 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 286 transitions. [2023-02-15 01:54:41,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-02-15 01:54:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 286 transitions. [2023-02-15 01:54:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-02-15 01:54:41,956 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:41,957 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:41,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 01:54:41,957 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:41,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1347359805, now seen corresponding path program 1 times [2023-02-15 01:54:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:41,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998027133] [2023-02-15 01:54:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-02-15 01:54:42,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:42,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998027133] [2023-02-15 01:54:42,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998027133] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:42,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:42,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:42,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006548111] [2023-02-15 01:54:42,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:42,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:42,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:42,023 INFO L87 Difference]: Start difference. First operand 214 states and 286 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-02-15 01:54:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:42,034 INFO L93 Difference]: Finished difference Result 332 states and 443 transitions. [2023-02-15 01:54:42,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:42,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 74 [2023-02-15 01:54:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:42,036 INFO L225 Difference]: With dead ends: 332 [2023-02-15 01:54:42,036 INFO L226 Difference]: Without dead ends: 214 [2023-02-15 01:54:42,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:42,037 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:42,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-15 01:54:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-02-15 01:54:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 1.3396226415094339) internal successors, (284), 213 states have internal predecessors, (284), 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) [2023-02-15 01:54:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 284 transitions. [2023-02-15 01:54:42,045 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 284 transitions. Word has length 74 [2023-02-15 01:54:42,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:42,045 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 284 transitions. [2023-02-15 01:54:42,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-02-15 01:54:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 284 transitions. [2023-02-15 01:54:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-15 01:54:42,046 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:42,047 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:42,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 01:54:42,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1555202175, now seen corresponding path program 1 times [2023-02-15 01:54:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256298240] [2023-02-15 01:54:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:42,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 01:54:42,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:42,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256298240] [2023-02-15 01:54:42,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256298240] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:42,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590864884] [2023-02-15 01:54:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:42,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:42,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:42,173 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) [2023-02-15 01:54:42,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 01:54:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 01:54:42,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 01:54:42,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-15 01:54:42,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590864884] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:42,482 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:42,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-02-15 01:54:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789920611] [2023-02-15 01:54:42,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:42,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 01:54:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 01:54:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-02-15 01:54:42,484 INFO L87 Difference]: Start difference. First operand 214 states and 284 transitions. Second operand has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 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) [2023-02-15 01:54:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:42,598 INFO L93 Difference]: Finished difference Result 592 states and 792 transitions. [2023-02-15 01:54:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 01:54:42,598 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 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 76 [2023-02-15 01:54:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:42,600 INFO L225 Difference]: With dead ends: 592 [2023-02-15 01:54:42,600 INFO L226 Difference]: Without dead ends: 590 [2023-02-15 01:54:42,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-02-15 01:54:42,601 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 664 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:42,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 698 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:42,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-02-15 01:54:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2023-02-15 01:54:42,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 588 states have (on average 1.3333333333333333) internal successors, (784), 589 states have internal predecessors, (784), 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) [2023-02-15 01:54:42,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 784 transitions. [2023-02-15 01:54:42,618 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 784 transitions. Word has length 76 [2023-02-15 01:54:42,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:42,619 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 784 transitions. [2023-02-15 01:54:42,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.75) internal successors, (142), 9 states have internal predecessors, (142), 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) [2023-02-15 01:54:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 784 transitions. [2023-02-15 01:54:42,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-02-15 01:54:42,625 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:42,625 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 9, 9, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:42,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:42,831 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,SelfDestructingSolverStorable13 [2023-02-15 01:54:42,832 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:42,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:42,832 INFO L85 PathProgramCache]: Analyzing trace with hash 126125921, now seen corresponding path program 2 times [2023-02-15 01:54:42,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:42,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597900435] [2023-02-15 01:54:42,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:42,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 26 proven. 432 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 01:54:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:43,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597900435] [2023-02-15 01:54:43,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597900435] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:43,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086767917] [2023-02-15 01:54:43,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:54:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:43,418 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) [2023-02-15 01:54:43,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 01:54:43,636 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:54:43,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:43,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 01:54:43,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:43,873 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 26 proven. 432 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 01:54:43,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 26 proven. 432 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 01:54:44,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086767917] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:44,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:44,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2023-02-15 01:54:44,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057851515] [2023-02-15 01:54:44,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:44,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 01:54:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 01:54:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2023-02-15 01:54:44,193 INFO L87 Difference]: Start difference. First operand 590 states and 784 transitions. Second operand has 17 states, 16 states have (on average 22.375) internal successors, (358), 17 states have internal predecessors, (358), 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) [2023-02-15 01:54:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:44,486 INFO L93 Difference]: Finished difference Result 1344 states and 1800 transitions. [2023-02-15 01:54:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 01:54:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 22.375) internal successors, (358), 17 states have internal predecessors, (358), 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 196 [2023-02-15 01:54:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:44,491 INFO L225 Difference]: With dead ends: 1344 [2023-02-15 01:54:44,491 INFO L226 Difference]: Without dead ends: 1342 [2023-02-15 01:54:44,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2023-02-15 01:54:44,492 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 1742 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:44,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 1484 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 01:54:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-02-15 01:54:44,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2023-02-15 01:54:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1340 states have (on average 1.3313432835820895) internal successors, (1784), 1341 states have internal predecessors, (1784), 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) [2023-02-15 01:54:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1784 transitions. [2023-02-15 01:54:44,527 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1784 transitions. Word has length 196 [2023-02-15 01:54:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:44,527 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1784 transitions. [2023-02-15 01:54:44,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 22.375) internal successors, (358), 17 states have internal predecessors, (358), 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) [2023-02-15 01:54:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1784 transitions. [2023-02-15 01:54:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2023-02-15 01:54:44,534 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:44,534 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 21, 21, 14, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:44,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:44,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 01:54:44,742 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:44,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash -57394395, now seen corresponding path program 3 times [2023-02-15 01:54:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:44,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426397077] [2023-02-15 01:54:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:44,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2662 backedges. 58 proven. 2548 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-02-15 01:54:46,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:46,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426397077] [2023-02-15 01:54:46,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426397077] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:46,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161415495] [2023-02-15 01:54:46,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 01:54:46,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:46,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:46,939 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) [2023-02-15 01:54:46,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 01:54:47,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-15 01:54:47,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:47,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 01:54:47,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 2662 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2023-02-15 01:54:47,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:47,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161415495] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:47,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:47,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 19 [2023-02-15 01:54:47,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803848179] [2023-02-15 01:54:47,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:47,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:47,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=220, Unknown=0, NotChecked=0, Total=380 [2023-02-15 01:54:47,206 INFO L87 Difference]: Start difference. First operand 1342 states and 1784 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2023-02-15 01:54:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:47,298 INFO L93 Difference]: Finished difference Result 1370 states and 1812 transitions. [2023-02-15 01:54:47,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:47,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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 436 [2023-02-15 01:54:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:47,303 INFO L225 Difference]: With dead ends: 1370 [2023-02-15 01:54:47,304 INFO L226 Difference]: Without dead ends: 1369 [2023-02-15 01:54:47,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=165, Invalid=255, Unknown=0, NotChecked=0, Total=420 [2023-02-15 01:54:47,305 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 132 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:47,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 274 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:47,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2023-02-15 01:54:47,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1292. [2023-02-15 01:54:47,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 1.3315259488768396) internal successors, (1719), 1291 states have internal predecessors, (1719), 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) [2023-02-15 01:54:47,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1719 transitions. [2023-02-15 01:54:47,340 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1719 transitions. Word has length 436 [2023-02-15 01:54:47,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:47,341 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1719 transitions. [2023-02-15 01:54:47,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 5 states have internal predecessors, (85), 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) [2023-02-15 01:54:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1719 transitions. [2023-02-15 01:54:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-02-15 01:54:47,348 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:47,348 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 22, 22, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:47,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:47,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:47,554 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:47,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:47,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1665563425, now seen corresponding path program 1 times [2023-02-15 01:54:47,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:47,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033963332] [2023-02-15 01:54:47,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:47,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2858 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 2130 trivial. 0 not checked. [2023-02-15 01:54:47,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:47,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033963332] [2023-02-15 01:54:47,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033963332] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:47,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:47,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:47,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891594282] [2023-02-15 01:54:47,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:47,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:47,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:47,862 INFO L87 Difference]: Start difference. First operand 1292 states and 1719 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2023-02-15 01:54:47,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:47,892 INFO L93 Difference]: Finished difference Result 1958 states and 2603 transitions. [2023-02-15 01:54:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:47,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 450 [2023-02-15 01:54:47,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:47,895 INFO L225 Difference]: With dead ends: 1958 [2023-02-15 01:54:47,896 INFO L226 Difference]: Without dead ends: 717 [2023-02-15 01:54:47,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:47,898 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 20 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:47,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 197 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-02-15 01:54:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-02-15 01:54:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 716 states have (on average 1.3156424581005586) internal successors, (942), 716 states have internal predecessors, (942), 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) [2023-02-15 01:54:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 942 transitions. [2023-02-15 01:54:47,918 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 942 transitions. Word has length 450 [2023-02-15 01:54:47,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:47,919 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 942 transitions. [2023-02-15 01:54:47,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2023-02-15 01:54:47,919 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 942 transitions. [2023-02-15 01:54:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-02-15 01:54:47,925 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:47,926 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 23, 23, 15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:47,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-15 01:54:47,926 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:47,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1346464157, now seen corresponding path program 2 times [2023-02-15 01:54:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:47,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764431141] [2023-02-15 01:54:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:49,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 62 proven. 2953 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-02-15 01:54:49,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764431141] [2023-02-15 01:54:49,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764431141] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242509328] [2023-02-15 01:54:49,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:54:49,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:49,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:49,893 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) [2023-02-15 01:54:49,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 01:54:50,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:54:50,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:50,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 2253 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 01:54:50,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 62 proven. 2953 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-02-15 01:54:50,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3076 backedges. 62 proven. 2953 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-02-15 01:54:51,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242509328] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:51,656 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:51,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-02-15 01:54:51,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832825161] [2023-02-15 01:54:51,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:51,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-15 01:54:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:51,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-15 01:54:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-02-15 01:54:51,660 INFO L87 Difference]: Start difference. First operand 717 states and 942 transitions. Second operand has 35 states, 34 states have (on average 24.764705882352942) internal successors, (842), 35 states have internal predecessors, (842), 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) [2023-02-15 01:54:52,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:52,175 INFO L93 Difference]: Finished difference Result 1546 states and 2040 transitions. [2023-02-15 01:54:52,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-15 01:54:52,176 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 24.764705882352942) internal successors, (842), 35 states have internal predecessors, (842), 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 466 [2023-02-15 01:54:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:52,182 INFO L225 Difference]: With dead ends: 1546 [2023-02-15 01:54:52,182 INFO L226 Difference]: Without dead ends: 1545 [2023-02-15 01:54:52,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 928 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-02-15 01:54:52,184 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 2519 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:52,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 2606 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 01:54:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2023-02-15 01:54:52,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1545. [2023-02-15 01:54:52,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.3154145077720207) internal successors, (2031), 1544 states have internal predecessors, (2031), 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) [2023-02-15 01:54:52,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2031 transitions. [2023-02-15 01:54:52,223 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2031 transitions. Word has length 466 [2023-02-15 01:54:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:52,224 INFO L495 AbstractCegarLoop]: Abstraction has 1545 states and 2031 transitions. [2023-02-15 01:54:52,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 24.764705882352942) internal successors, (842), 35 states have internal predecessors, (842), 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) [2023-02-15 01:54:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2031 transitions. [2023-02-15 01:54:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2023-02-15 01:54:52,249 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:52,249 INFO L195 NwaCegarLoop]: trace histogram [68, 67, 50, 50, 33, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:52,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:52,457 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,SelfDestructingSolverStorable17 [2023-02-15 01:54:52,459 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:54:52,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:52,459 INFO L85 PathProgramCache]: Analyzing trace with hash -229520804, now seen corresponding path program 3 times [2023-02-15 01:54:52,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:52,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251067313] [2023-02-15 01:54:52,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:52,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 14929 backedges. 134 proven. 14662 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-02-15 01:54:59,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:59,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251067313] [2023-02-15 01:54:59,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251067313] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883109386] [2023-02-15 01:54:59,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 01:54:59,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:59,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:59,077 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) [2023-02-15 01:54:59,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 01:55:00,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2023-02-15 01:55:00,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:00,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 4782 conjuncts, 68 conjunts are in the unsatisfiable core [2023-02-15 01:55:00,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 14929 backedges. 134 proven. 14662 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-02-15 01:55:01,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:03,729 INFO L134 CoverageAnalysis]: Checked inductivity of 14929 backedges. 134 proven. 14662 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-02-15 01:55:03,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883109386] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:03,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:03,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 70 [2023-02-15 01:55:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607316978] [2023-02-15 01:55:03,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:03,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-15 01:55:03,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-15 01:55:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2023-02-15 01:55:03,740 INFO L87 Difference]: Start difference. First operand 1545 states and 2031 transitions. Second operand has 71 states, 70 states have (on average 25.914285714285715) internal successors, (1814), 71 states have internal predecessors, (1814), 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) [2023-02-15 01:55:06,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:06,205 INFO L93 Difference]: Finished difference Result 3202 states and 4227 transitions. [2023-02-15 01:55:06,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-02-15 01:55:06,206 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 25.914285714285715) internal successors, (1814), 71 states have internal predecessors, (1814), 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 1006 [2023-02-15 01:55:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:06,218 INFO L225 Difference]: With dead ends: 3202 [2023-02-15 01:55:06,218 INFO L226 Difference]: Without dead ends: 3201 [2023-02-15 01:55:06,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2078 GetRequests, 2008 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2023-02-15 01:55:06,220 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 5642 mSDsluCounter, 5375 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5642 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:06,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5642 Valid, 5481 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 01:55:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2023-02-15 01:55:06,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3201. [2023-02-15 01:55:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3200 states have (on average 1.3153125) internal successors, (4209), 3200 states have internal predecessors, (4209), 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) [2023-02-15 01:55:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 4209 transitions. [2023-02-15 01:55:06,293 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 4209 transitions. Word has length 1006 [2023-02-15 01:55:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:06,294 INFO L495 AbstractCegarLoop]: Abstraction has 3201 states and 4209 transitions. [2023-02-15 01:55:06,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 25.914285714285715) internal successors, (1814), 71 states have internal predecessors, (1814), 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) [2023-02-15 01:55:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 4209 transitions. [2023-02-15 01:55:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2087 [2023-02-15 01:55:06,355 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:06,356 INFO L195 NwaCegarLoop]: trace histogram [140, 139, 104, 104, 69, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:06,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:06,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:06,561 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:55:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:06,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1582042162, now seen corresponding path program 4 times [2023-02-15 01:55:06,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:06,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406111215] [2023-02-15 01:55:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 65365 backedges. 278 proven. 64810 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-02-15 01:55:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406111215] [2023-02-15 01:55:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406111215] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737513426] [2023-02-15 01:55:37,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 01:55:37,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:37,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:37,153 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) [2023-02-15 01:55:37,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 01:55:38,619 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 01:55:38,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:38,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 9840 conjuncts, 140 conjunts are in the unsatisfiable core [2023-02-15 01:55:38,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:40,768 INFO L134 CoverageAnalysis]: Checked inductivity of 65365 backedges. 278 proven. 64810 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-02-15 01:55:40,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:47,633 INFO L134 CoverageAnalysis]: Checked inductivity of 65365 backedges. 278 proven. 64810 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2023-02-15 01:55:47,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737513426] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:47,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:47,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 142 [2023-02-15 01:55:47,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18967445] [2023-02-15 01:55:47,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:47,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2023-02-15 01:55:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:47,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2023-02-15 01:55:47,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2023-02-15 01:55:47,652 INFO L87 Difference]: Start difference. First operand 3201 states and 4209 transitions. Second operand has 143 states, 142 states have (on average 26.464788732394368) internal successors, (3758), 143 states have internal predecessors, (3758), 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) [2023-02-15 01:56:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:56:07,196 INFO L93 Difference]: Finished difference Result 6514 states and 8601 transitions. [2023-02-15 01:56:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2023-02-15 01:56:07,198 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 142 states have (on average 26.464788732394368) internal successors, (3758), 143 states have internal predecessors, (3758), 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 2086 [2023-02-15 01:56:07,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:56:07,219 INFO L225 Difference]: With dead ends: 6514 [2023-02-15 01:56:07,220 INFO L226 Difference]: Without dead ends: 6513 [2023-02-15 01:56:07,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4310 GetRequests, 4168 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2023-02-15 01:56:07,225 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 17774 mSDsluCounter, 10369 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17774 SdHoareTripleChecker+Valid, 10475 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-15 01:56:07,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17774 Valid, 10475 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-15 01:56:07,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6513 states. [2023-02-15 01:56:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6513 to 6513. [2023-02-15 01:56:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6513 states, 6512 states have (on average 1.3152641277641277) internal successors, (8565), 6512 states have internal predecessors, (8565), 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) [2023-02-15 01:56:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6513 states to 6513 states and 8565 transitions. [2023-02-15 01:56:07,382 INFO L78 Accepts]: Start accepts. Automaton has 6513 states and 8565 transitions. Word has length 2086 [2023-02-15 01:56:07,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:56:07,384 INFO L495 AbstractCegarLoop]: Abstraction has 6513 states and 8565 transitions. [2023-02-15 01:56:07,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 26.464788732394368) internal successors, (3758), 143 states have internal predecessors, (3758), 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) [2023-02-15 01:56:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 6513 states and 8565 transitions. [2023-02-15 01:56:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4247 [2023-02-15 01:56:07,488 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:56:07,489 INFO L195 NwaCegarLoop]: trace histogram [284, 283, 212, 212, 141, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:56:07,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 01:56:07,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:56:07,690 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-02-15 01:56:07,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:56:07,691 INFO L85 PathProgramCache]: Analyzing trace with hash 499535026, now seen corresponding path program 5 times [2023-02-15 01:56:07,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:56:07,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256624474] [2023-02-15 01:56:07,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:56:07,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:56:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat