./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:07:15,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:07:15,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:07:15,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:07:15,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:07:15,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:07:15,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:07:15,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:07:15,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:07:15,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:07:15,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:07:15,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:07:15,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:07:15,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:07:15,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:07:15,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:07:15,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:07:15,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:07:15,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:07:15,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:07:15,511 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:07:15,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:07:15,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:07:15,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:07:15,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:07:15,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:07:15,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:07:15,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:07:15,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:07:15,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:07:15,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:07:15,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:07:15,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:07:15,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:07:15,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:07:15,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:07:15,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:07:15,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:07:15,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:07:15,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:07:15,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:07:15,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:07:15,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:07:15,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:07:15,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:07:15,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:07:15,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:07:15,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:07:15,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:07:15,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:07:15,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:07:15,554 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:07:15,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:07:15,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:07:15,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:07:15,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:07:15,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:07:15,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:07:15,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:07:15,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:07:15,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:07:15,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:07:15,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:07:15,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:07:15,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:07:15,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2022-07-14 14:07:15,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:07:15,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:07:15,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:07:15,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:07:15,750 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:07:15,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-07-14 14:07:15,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cce4de29/81c04f7f17c5474a8bebdb3698d826b5/FLAGafdbe89d1 [2022-07-14 14:07:16,200 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:07:16,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-07-14 14:07:16,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cce4de29/81c04f7f17c5474a8bebdb3698d826b5/FLAGafdbe89d1 [2022-07-14 14:07:16,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cce4de29/81c04f7f17c5474a8bebdb3698d826b5 [2022-07-14 14:07:16,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:07:16,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:07:16,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:07:16,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:07:16,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:07:16,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:07:16" (1/1) ... [2022-07-14 14:07:16,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4235b72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:16, skipping insertion in model container [2022-07-14 14:07:16,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:07:16" (1/1) ... [2022-07-14 14:07:16,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:07:16,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:07:16,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-07-14 14:07:16,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:07:16,932 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:07:16,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-07-14 14:07:16,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:07:17,009 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:07:17,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17 WrapperNode [2022-07-14 14:07:17,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:07:17,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:07:17,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:07:17,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:07:17,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,053 INFO L137 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-07-14 14:07:17,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:07:17,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:07:17,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:07:17,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:07:17,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:07:17,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:07:17,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:07:17,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:07:17,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (1/1) ... [2022-07-14 14:07:17,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:07:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:17,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 14:07:17,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 14:07:17,151 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-07-14 14:07:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:07:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2022-07-14 14:07:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2022-07-14 14:07:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:07:17,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:07:17,153 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:07:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:07:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2022-07-14 14:07:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2022-07-14 14:07:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure process [2022-07-14 14:07:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2022-07-14 14:07:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:07:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:07:17,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:07:17,155 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:07:17,361 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:07:17,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:07:17,526 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:07:17,532 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:07:17,532 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-14 14:07:17,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:07:17 BoogieIcfgContainer [2022-07-14 14:07:17,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:07:17,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:07:17,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:07:17,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:07:17,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:07:16" (1/3) ... [2022-07-14 14:07:17,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a7492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:07:17, skipping insertion in model container [2022-07-14 14:07:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:07:17" (2/3) ... [2022-07-14 14:07:17,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a7492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:07:17, skipping insertion in model container [2022-07-14 14:07:17,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:07:17" (3/3) ... [2022-07-14 14:07:17,539 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2022-07-14 14:07:17,542 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:07:17,549 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:07:17,549 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-14 14:07:17,549 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:07:17,589 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:07:17,611 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:07:17,619 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 177 transitions, 369 flow [2022-07-14 14:07:17,621 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 177 transitions, 369 flow [2022-07-14 14:07:17,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 177 transitions, 369 flow [2022-07-14 14:07:17,679 INFO L129 PetriNetUnfolder]: 12/174 cut-off events. [2022-07-14 14:07:17,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:07:17,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 174 events. 12/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 377 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2022-07-14 14:07:17,693 INFO L116 LiptonReduction]: Number of co-enabled transitions 12642 [2022-07-14 14:07:21,424 INFO L131 LiptonReduction]: Checked pairs total: 25154 [2022-07-14 14:07:21,424 INFO L133 LiptonReduction]: Total number of compositions: 159 [2022-07-14 14:07:21,438 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 55 transitions, 125 flow [2022-07-14 14:07:21,735 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10411 states, 10349 states have (on average 4.1786646052758725) internal successors, (43245), 10410 states have internal predecessors, (43245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:21,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:07:21,751 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@569b2221, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@e19b0bd [2022-07-14 14:07:21,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-07-14 14:07:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 10411 states, 10349 states have (on average 4.1786646052758725) internal successors, (43245), 10410 states have internal predecessors, (43245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:21,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:07:21,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:21,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:21,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:21,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:21,787 INFO L85 PathProgramCache]: Analyzing trace with hash -140497009, now seen corresponding path program 1 times [2022-07-14 14:07:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:21,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144968485] [2022-07-14 14:07:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:21,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:22,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:22,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144968485] [2022-07-14 14:07:22,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144968485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:22,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:22,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227529065] [2022-07-14 14:07:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:22,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:22,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:22,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:22,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:22,093 INFO L87 Difference]: Start difference. First operand has 10411 states, 10349 states have (on average 4.1786646052758725) internal successors, (43245), 10410 states have internal predecessors, (43245), 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, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:22,448 INFO L93 Difference]: Finished difference Result 12794 states and 53390 transitions. [2022-07-14 14:07:22,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:22,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 14:07:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:22,664 INFO L225 Difference]: With dead ends: 12794 [2022-07-14 14:07:22,665 INFO L226 Difference]: Without dead ends: 12794 [2022-07-14 14:07:22,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:22,668 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 40 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:22,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 14 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12794 states. [2022-07-14 14:07:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12794 to 12794. [2022-07-14 14:07:23,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12794 states, 12794 states have (on average 4.173049867125215) internal successors, (53390), 12793 states have internal predecessors, (53390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:23,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12794 states to 12794 states and 53390 transitions. [2022-07-14 14:07:23,415 INFO L78 Accepts]: Start accepts. Automaton has 12794 states and 53390 transitions. Word has length 7 [2022-07-14 14:07:23,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:23,416 INFO L495 AbstractCegarLoop]: Abstraction has 12794 states and 53390 transitions. [2022-07-14 14:07:23,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:23,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12794 states and 53390 transitions. [2022-07-14 14:07:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:07:23,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:23,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:23,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:07:23,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash 545841247, now seen corresponding path program 1 times [2022-07-14 14:07:23,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:23,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645224516] [2022-07-14 14:07:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:23,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:23,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645224516] [2022-07-14 14:07:23,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645224516] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:23,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:23,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:07:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870110592] [2022-07-14 14:07:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:23,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:23,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:23,510 INFO L87 Difference]: Start difference. First operand 12794 states and 53390 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:23,971 INFO L93 Difference]: Finished difference Result 19682 states and 81635 transitions. [2022-07-14 14:07:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:23,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 14:07:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:24,214 INFO L225 Difference]: With dead ends: 19682 [2022-07-14 14:07:24,231 INFO L226 Difference]: Without dead ends: 19682 [2022-07-14 14:07:24,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:24,232 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 33 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:24,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 7 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:24,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19682 states. [2022-07-14 14:07:24,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19682 to 17218. [2022-07-14 14:07:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17218 states, 17218 states have (on average 4.238761760947845) internal successors, (72983), 17217 states have internal predecessors, (72983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17218 states to 17218 states and 72983 transitions. [2022-07-14 14:07:24,935 INFO L78 Accepts]: Start accepts. Automaton has 17218 states and 72983 transitions. Word has length 8 [2022-07-14 14:07:24,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 17218 states and 72983 transitions. [2022-07-14 14:07:24,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 17218 states and 72983 transitions. [2022-07-14 14:07:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:07:24,937 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:24,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:24,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:07:24,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash 545841200, now seen corresponding path program 1 times [2022-07-14 14:07:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:24,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375718421] [2022-07-14 14:07:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:24,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375718421] [2022-07-14 14:07:24,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375718421] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:24,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:24,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:07:24,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544213028] [2022-07-14 14:07:24,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:24,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:24,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:24,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:24,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:24,976 INFO L87 Difference]: Start difference. First operand 17218 states and 72983 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:25,393 INFO L93 Difference]: Finished difference Result 21922 states and 90875 transitions. [2022-07-14 14:07:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 14:07:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:25,575 INFO L225 Difference]: With dead ends: 21922 [2022-07-14 14:07:25,575 INFO L226 Difference]: Without dead ends: 21922 [2022-07-14 14:07:25,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:25,576 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:25,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 7 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:25,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21922 states. [2022-07-14 14:07:26,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21922 to 19346. [2022-07-14 14:07:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19346 states, 19346 states have (on average 4.226248320066164) internal successors, (81761), 19345 states have internal predecessors, (81761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:26,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19346 states to 19346 states and 81761 transitions. [2022-07-14 14:07:26,237 INFO L78 Accepts]: Start accepts. Automaton has 19346 states and 81761 transitions. Word has length 8 [2022-07-14 14:07:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:26,237 INFO L495 AbstractCegarLoop]: Abstraction has 19346 states and 81761 transitions. [2022-07-14 14:07:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 19346 states and 81761 transitions. [2022-07-14 14:07:26,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:07:26,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:26,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:26,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:07:26,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:26,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash -612819383, now seen corresponding path program 1 times [2022-07-14 14:07:26,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:26,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336400706] [2022-07-14 14:07:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:26,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:26,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:26,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336400706] [2022-07-14 14:07:26,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336400706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:26,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:26,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:07:26,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718475096] [2022-07-14 14:07:26,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:26,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:07:26,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:07:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:07:26,317 INFO L87 Difference]: Start difference. First operand 19346 states and 81761 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:26,702 INFO L93 Difference]: Finished difference Result 20298 states and 85352 transitions. [2022-07-14 14:07:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:07:26,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-07-14 14:07:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:26,830 INFO L225 Difference]: With dead ends: 20298 [2022-07-14 14:07:26,831 INFO L226 Difference]: Without dead ends: 20298 [2022-07-14 14:07:26,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:26,831 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 70 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:26,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 20 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:26,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20298 states. [2022-07-14 14:07:27,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20298 to 19850. [2022-07-14 14:07:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19850 states, 19850 states have (on average 4.22367758186398) internal successors, (83840), 19849 states have internal predecessors, (83840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19850 states to 19850 states and 83840 transitions. [2022-07-14 14:07:27,453 INFO L78 Accepts]: Start accepts. Automaton has 19850 states and 83840 transitions. Word has length 11 [2022-07-14 14:07:27,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:27,453 INFO L495 AbstractCegarLoop]: Abstraction has 19850 states and 83840 transitions. [2022-07-14 14:07:27,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:27,454 INFO L276 IsEmpty]: Start isEmpty. Operand 19850 states and 83840 transitions. [2022-07-14 14:07:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:07:27,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:27,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:27,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:07:27,455 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:27,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash 409590779, now seen corresponding path program 1 times [2022-07-14 14:07:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:27,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235065181] [2022-07-14 14:07:27,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:27,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:27,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:27,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235065181] [2022-07-14 14:07:27,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235065181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:27,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:27,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:07:27,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344149067] [2022-07-14 14:07:27,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:27,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:07:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:07:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:27,506 INFO L87 Difference]: Start difference. First operand 19850 states and 83840 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:27,822 INFO L93 Difference]: Finished difference Result 27466 states and 115088 transitions. [2022-07-14 14:07:27,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:07:27,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-07-14 14:07:27,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:28,141 INFO L225 Difference]: With dead ends: 27466 [2022-07-14 14:07:28,142 INFO L226 Difference]: Without dead ends: 27466 [2022-07-14 14:07:28,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:07:28,143 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 160 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:28,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 21 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27466 states. [2022-07-14 14:07:28,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27466 to 23882. [2022-07-14 14:07:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23882 states, 23882 states have (on average 4.263294531446277) internal successors, (101816), 23881 states have internal predecessors, (101816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23882 states to 23882 states and 101816 transitions. [2022-07-14 14:07:28,893 INFO L78 Accepts]: Start accepts. Automaton has 23882 states and 101816 transitions. Word has length 11 [2022-07-14 14:07:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:28,894 INFO L495 AbstractCegarLoop]: Abstraction has 23882 states and 101816 transitions. [2022-07-14 14:07:28,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 23882 states and 101816 transitions. [2022-07-14 14:07:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:07:28,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:28,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:28,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 14:07:28,895 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:28,896 INFO L85 PathProgramCache]: Analyzing trace with hash 409590803, now seen corresponding path program 1 times [2022-07-14 14:07:28,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:28,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091696415] [2022-07-14 14:07:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:28,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:28,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:28,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091696415] [2022-07-14 14:07:28,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091696415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:28,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:28,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:07:28,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954959705] [2022-07-14 14:07:28,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:28,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:07:28,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:28,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:07:28,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:28,955 INFO L87 Difference]: Start difference. First operand 23882 states and 101816 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:29,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:29,498 INFO L93 Difference]: Finished difference Result 32954 states and 136550 transitions. [2022-07-14 14:07:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:07:29,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-07-14 14:07:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:29,628 INFO L225 Difference]: With dead ends: 32954 [2022-07-14 14:07:29,628 INFO L226 Difference]: Without dead ends: 32954 [2022-07-14 14:07:29,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:07:29,629 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 134 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:29,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 20 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:07:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32954 states. [2022-07-14 14:07:30,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32954 to 25674. [2022-07-14 14:07:30,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25674 states, 25674 states have (on average 4.253641816623822) internal successors, (109208), 25673 states have internal predecessors, (109208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25674 states to 25674 states and 109208 transitions. [2022-07-14 14:07:30,610 INFO L78 Accepts]: Start accepts. Automaton has 25674 states and 109208 transitions. Word has length 11 [2022-07-14 14:07:30,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:30,610 INFO L495 AbstractCegarLoop]: Abstraction has 25674 states and 109208 transitions. [2022-07-14 14:07:30,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 25674 states and 109208 transitions. [2022-07-14 14:07:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:07:30,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:30,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:07:30,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:07:30,612 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:30,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:30,613 INFO L85 PathProgramCache]: Analyzing trace with hash -943698894, now seen corresponding path program 1 times [2022-07-14 14:07:30,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:30,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658382691] [2022-07-14 14:07:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:30,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:07:30,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:30,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658382691] [2022-07-14 14:07:30,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658382691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:30,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:30,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:30,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023700671] [2022-07-14 14:07:30,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:30,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:30,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:30,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:30,694 INFO L87 Difference]: Start difference. First operand 25674 states and 109208 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:30,897 INFO L93 Difference]: Finished difference Result 23488 states and 99915 transitions. [2022-07-14 14:07:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-07-14 14:07:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:30,984 INFO L225 Difference]: With dead ends: 23488 [2022-07-14 14:07:30,984 INFO L226 Difference]: Without dead ends: 23488 [2022-07-14 14:07:30,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:30,985 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 41 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:30,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 12 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23488 states. [2022-07-14 14:07:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23488 to 23488. [2022-07-14 14:07:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23488 states, 23488 states have (on average 4.25387431880109) internal successors, (99915), 23487 states have internal predecessors, (99915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23488 states to 23488 states and 99915 transitions. [2022-07-14 14:07:31,764 INFO L78 Accepts]: Start accepts. Automaton has 23488 states and 99915 transitions. Word has length 11 [2022-07-14 14:07:31,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:31,765 INFO L495 AbstractCegarLoop]: Abstraction has 23488 states and 99915 transitions. [2022-07-14 14:07:31,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:31,765 INFO L276 IsEmpty]: Start isEmpty. Operand 23488 states and 99915 transitions. [2022-07-14 14:07:31,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:07:31,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:31,766 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:07:31,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:07:31,766 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -943698876, now seen corresponding path program 1 times [2022-07-14 14:07:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:31,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389194674] [2022-07-14 14:07:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:31,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:31,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389194674] [2022-07-14 14:07:31,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389194674] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:07:31,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041122111] [2022-07-14 14:07:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:31,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:31,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:07:31,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:07:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:31,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:07:31,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:07:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:31,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:07:31,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041122111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:31,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:07:31,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 14:07:31,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40224234] [2022-07-14 14:07:31,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:31,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:07:31,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:31,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:07:31,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:31,952 INFO L87 Difference]: Start difference. First operand 23488 states and 99915 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:32,287 INFO L93 Difference]: Finished difference Result 21302 states and 90622 transitions. [2022-07-14 14:07:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:07:32,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-07-14 14:07:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:32,375 INFO L225 Difference]: With dead ends: 21302 [2022-07-14 14:07:32,375 INFO L226 Difference]: Without dead ends: 21302 [2022-07-14 14:07:32,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:32,376 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 81 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:32,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 25 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:07:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21302 states. [2022-07-14 14:07:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21302 to 16932. [2022-07-14 14:07:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16932 states, 16932 states have (on average 4.2745098039215685) internal successors, (72376), 16931 states have internal predecessors, (72376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16932 states to 16932 states and 72376 transitions. [2022-07-14 14:07:32,943 INFO L78 Accepts]: Start accepts. Automaton has 16932 states and 72376 transitions. Word has length 11 [2022-07-14 14:07:32,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:32,943 INFO L495 AbstractCegarLoop]: Abstraction has 16932 states and 72376 transitions. [2022-07-14 14:07:32,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 16932 states and 72376 transitions. [2022-07-14 14:07:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-14 14:07:32,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:32,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:32,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 14:07:33,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:33,155 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:33,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:33,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1945097618, now seen corresponding path program 1 times [2022-07-14 14:07:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:33,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115976245] [2022-07-14 14:07:33,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:33,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:33,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:33,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115976245] [2022-07-14 14:07:33,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115976245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:33,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:33,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092573990] [2022-07-14 14:07:33,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:33,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:33,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:33,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:33,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:33,203 INFO L87 Difference]: Start difference. First operand 16932 states and 72376 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:33,435 INFO L93 Difference]: Finished difference Result 25992 states and 111506 transitions. [2022-07-14 14:07:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:33,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-07-14 14:07:33,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:33,787 INFO L225 Difference]: With dead ends: 25992 [2022-07-14 14:07:33,788 INFO L226 Difference]: Without dead ends: 25992 [2022-07-14 14:07:33,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:33,788 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:33,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 15 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25992 states. [2022-07-14 14:07:34,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25992 to 25992. [2022-07-14 14:07:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25992 states, 25992 states have (on average 4.290012311480456) internal successors, (111506), 25991 states have internal predecessors, (111506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25992 states to 25992 states and 111506 transitions. [2022-07-14 14:07:34,602 INFO L78 Accepts]: Start accepts. Automaton has 25992 states and 111506 transitions. Word has length 12 [2022-07-14 14:07:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:34,602 INFO L495 AbstractCegarLoop]: Abstraction has 25992 states and 111506 transitions. [2022-07-14 14:07:34,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 25992 states and 111506 transitions. [2022-07-14 14:07:34,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 14:07:34,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:34,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:34,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 14:07:34,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:34,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:34,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1402920401, now seen corresponding path program 1 times [2022-07-14 14:07:34,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:34,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271283175] [2022-07-14 14:07:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:34,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:34,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:34,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271283175] [2022-07-14 14:07:34,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271283175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:34,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:34,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:07:34,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989531728] [2022-07-14 14:07:34,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:34,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:34,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:34,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:34,647 INFO L87 Difference]: Start difference. First operand 25992 states and 111506 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:35,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:35,030 INFO L93 Difference]: Finished difference Result 47444 states and 194637 transitions. [2022-07-14 14:07:35,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:35,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-07-14 14:07:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:35,240 INFO L225 Difference]: With dead ends: 47444 [2022-07-14 14:07:35,240 INFO L226 Difference]: Without dead ends: 47444 [2022-07-14 14:07:35,240 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 [2022-07-14 14:07:35,240 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:35,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 12 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47444 states. [2022-07-14 14:07:36,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47444 to 37357. [2022-07-14 14:07:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37357 states, 37357 states have (on average 4.114382846588324) internal successors, (153701), 37356 states have internal predecessors, (153701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37357 states to 37357 states and 153701 transitions. [2022-07-14 14:07:36,581 INFO L78 Accepts]: Start accepts. Automaton has 37357 states and 153701 transitions. Word has length 14 [2022-07-14 14:07:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:36,581 INFO L495 AbstractCegarLoop]: Abstraction has 37357 states and 153701 transitions. [2022-07-14 14:07:36,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 37357 states and 153701 transitions. [2022-07-14 14:07:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:07:36,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:36,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:36,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:07:36,585 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:36,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:36,586 INFO L85 PathProgramCache]: Analyzing trace with hash 191474924, now seen corresponding path program 1 times [2022-07-14 14:07:36,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:36,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055889338] [2022-07-14 14:07:36,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:36,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:36,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:36,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055889338] [2022-07-14 14:07:36,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055889338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:36,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:36,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:36,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086725834] [2022-07-14 14:07:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:36,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:36,632 INFO L87 Difference]: Start difference. First operand 37357 states and 153701 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) [2022-07-14 14:07:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:37,225 INFO L93 Difference]: Finished difference Result 34993 states and 143713 transitions. [2022-07-14 14:07:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:37,226 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 [2022-07-14 14:07:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:37,365 INFO L225 Difference]: With dead ends: 34993 [2022-07-14 14:07:37,365 INFO L226 Difference]: Without dead ends: 34993 [2022-07-14 14:07:37,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:37,366 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 35 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:37,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 15 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:07:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34993 states. [2022-07-14 14:07:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34993 to 34993. [2022-07-14 14:07:38,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34993 states, 34993 states have (on average 4.106907095704855) internal successors, (143713), 34992 states have internal predecessors, (143713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34993 states to 34993 states and 143713 transitions. [2022-07-14 14:07:38,461 INFO L78 Accepts]: Start accepts. Automaton has 34993 states and 143713 transitions. Word has length 17 [2022-07-14 14:07:38,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:38,461 INFO L495 AbstractCegarLoop]: Abstraction has 34993 states and 143713 transitions. [2022-07-14 14:07:38,461 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) [2022-07-14 14:07:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 34993 states and 143713 transitions. [2022-07-14 14:07:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:07:38,465 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:38,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:38,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 14:07:38,465 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:38,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:38,466 INFO L85 PathProgramCache]: Analyzing trace with hash 191474925, now seen corresponding path program 1 times [2022-07-14 14:07:38,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:38,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881853731] [2022-07-14 14:07:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:07:38,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:38,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881853731] [2022-07-14 14:07:38,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881853731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:38,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:38,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:38,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391350623] [2022-07-14 14:07:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:38,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:38,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:38,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:38,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:38,524 INFO L87 Difference]: Start difference. First operand 34993 states and 143713 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) [2022-07-14 14:07:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:38,803 INFO L93 Difference]: Finished difference Result 32629 states and 133725 transitions. [2022-07-14 14:07:38,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:38,803 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 [2022-07-14 14:07:38,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:38,937 INFO L225 Difference]: With dead ends: 32629 [2022-07-14 14:07:38,937 INFO L226 Difference]: Without dead ends: 32629 [2022-07-14 14:07:38,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:38,938 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 33 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:38,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 15 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:38,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32629 states. [2022-07-14 14:07:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32629 to 22726. [2022-07-14 14:07:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22726 states, 22726 states have (on average 4.063407550822846) internal successors, (92345), 22725 states have internal predecessors, (92345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22726 states to 22726 states and 92345 transitions. [2022-07-14 14:07:39,822 INFO L78 Accepts]: Start accepts. Automaton has 22726 states and 92345 transitions. Word has length 17 [2022-07-14 14:07:39,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:39,823 INFO L495 AbstractCegarLoop]: Abstraction has 22726 states and 92345 transitions. [2022-07-14 14:07:39,823 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) [2022-07-14 14:07:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 22726 states and 92345 transitions. [2022-07-14 14:07:39,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 14:07:39,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:39,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:39,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 14:07:39,829 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1604814927, now seen corresponding path program 1 times [2022-07-14 14:07:39,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:39,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857365028] [2022-07-14 14:07:39,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:39,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:39,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:07:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:39,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857365028] [2022-07-14 14:07:39,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857365028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:39,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:39,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485843836] [2022-07-14 14:07:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:39,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:39,864 INFO L87 Difference]: Start difference. First operand 22726 states and 92345 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:40,073 INFO L93 Difference]: Finished difference Result 24914 states and 99813 transitions. [2022-07-14 14:07:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:40,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 14:07:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:40,164 INFO L225 Difference]: With dead ends: 24914 [2022-07-14 14:07:40,164 INFO L226 Difference]: Without dead ends: 24914 [2022-07-14 14:07:40,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:40,165 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:40,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 7 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24914 states. [2022-07-14 14:07:40,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24914 to 22554. [2022-07-14 14:07:40,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22554 states, 22554 states have (on average 4.028997073689811) internal successors, (90870), 22553 states have internal predecessors, (90870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22554 states to 22554 states and 90870 transitions. [2022-07-14 14:07:41,008 INFO L78 Accepts]: Start accepts. Automaton has 22554 states and 90870 transitions. Word has length 19 [2022-07-14 14:07:41,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:41,008 INFO L495 AbstractCegarLoop]: Abstraction has 22554 states and 90870 transitions. [2022-07-14 14:07:41,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 22554 states and 90870 transitions. [2022-07-14 14:07:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 14:07:41,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:41,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:41,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 14:07:41,014 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:41,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:41,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1604814880, now seen corresponding path program 1 times [2022-07-14 14:07:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:41,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188952152] [2022-07-14 14:07:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:41,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-14 14:07:41,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:41,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188952152] [2022-07-14 14:07:41,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188952152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:41,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:41,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:07:41,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232947660] [2022-07-14 14:07:41,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:41,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:07:41,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:41,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:07:41,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:07:41,074 INFO L87 Difference]: Start difference. First operand 22554 states and 90870 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-07-14 14:07:41,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:41,556 INFO L93 Difference]: Finished difference Result 29970 states and 120722 transitions. [2022-07-14 14:07:41,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 14:07:41,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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 19 [2022-07-14 14:07:41,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:41,680 INFO L225 Difference]: With dead ends: 29970 [2022-07-14 14:07:41,680 INFO L226 Difference]: Without dead ends: 29970 [2022-07-14 14:07:41,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:07:41,681 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 172 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:41,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 34 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:07:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29970 states. [2022-07-14 14:07:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29970 to 20810. [2022-07-14 14:07:42,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20810 states, 20810 states have (on average 4.013166746756367) internal successors, (83514), 20809 states have internal predecessors, (83514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20810 states to 20810 states and 83514 transitions. [2022-07-14 14:07:42,462 INFO L78 Accepts]: Start accepts. Automaton has 20810 states and 83514 transitions. Word has length 19 [2022-07-14 14:07:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:42,462 INFO L495 AbstractCegarLoop]: Abstraction has 20810 states and 83514 transitions. [2022-07-14 14:07:42,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2022-07-14 14:07:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 20810 states and 83514 transitions. [2022-07-14 14:07:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-14 14:07:42,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:42,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:42,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 14:07:42,467 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 442247712, now seen corresponding path program 1 times [2022-07-14 14:07:42,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:42,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980379905] [2022-07-14 14:07:42,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:42,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:42,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:42,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:42,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980379905] [2022-07-14 14:07:42,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980379905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:42,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:42,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:07:42,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641410109] [2022-07-14 14:07:42,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:42,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:07:42,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:42,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:07:42,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:42,506 INFO L87 Difference]: Start difference. First operand 20810 states and 83514 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:42,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:42,696 INFO L93 Difference]: Finished difference Result 24961 states and 99620 transitions. [2022-07-14 14:07:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:07:42,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 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 20 [2022-07-14 14:07:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:42,776 INFO L225 Difference]: With dead ends: 24961 [2022-07-14 14:07:42,776 INFO L226 Difference]: Without dead ends: 24961 [2022-07-14 14:07:42,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:07:42,778 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 23 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:42,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 8 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:42,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24961 states. [2022-07-14 14:07:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24961 to 24961. [2022-07-14 14:07:43,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24961 states, 24961 states have (on average 3.991026000560875) internal successors, (99620), 24960 states have internal predecessors, (99620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24961 states to 24961 states and 99620 transitions. [2022-07-14 14:07:43,509 INFO L78 Accepts]: Start accepts. Automaton has 24961 states and 99620 transitions. Word has length 20 [2022-07-14 14:07:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:43,509 INFO L495 AbstractCegarLoop]: Abstraction has 24961 states and 99620 transitions. [2022-07-14 14:07:43,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 24961 states and 99620 transitions. [2022-07-14 14:07:43,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 14:07:43,515 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:43,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:43,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 14:07:43,516 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash 185752189, now seen corresponding path program 1 times [2022-07-14 14:07:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:43,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597828366] [2022-07-14 14:07:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:43,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:43,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:43,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597828366] [2022-07-14 14:07:43,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597828366] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:07:43,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145047857] [2022-07-14 14:07:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:43,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:43,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:43,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:07:43,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:07:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:43,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:07:43,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:07:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:43,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:07:43,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145047857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:43,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:07:43,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-07-14 14:07:43,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969946444] [2022-07-14 14:07:43,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:43,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:07:43,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:43,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:07:43,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:07:43,683 INFO L87 Difference]: Start difference. First operand 24961 states and 99620 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:44,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:44,058 INFO L93 Difference]: Finished difference Result 33680 states and 134942 transitions. [2022-07-14 14:07:44,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:07:44,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 21 [2022-07-14 14:07:44,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:44,179 INFO L225 Difference]: With dead ends: 33680 [2022-07-14 14:07:44,179 INFO L226 Difference]: Without dead ends: 33680 [2022-07-14 14:07:44,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:07:44,180 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 143 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:44,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 22 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:07:44,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33680 states. [2022-07-14 14:07:44,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33680 to 23713. [2022-07-14 14:07:44,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23713 states, 23713 states have (on average 3.9988192130898663) internal successors, (94824), 23712 states have internal predecessors, (94824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23713 states to 23713 states and 94824 transitions. [2022-07-14 14:07:44,965 INFO L78 Accepts]: Start accepts. Automaton has 23713 states and 94824 transitions. Word has length 21 [2022-07-14 14:07:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:44,965 INFO L495 AbstractCegarLoop]: Abstraction has 23713 states and 94824 transitions. [2022-07-14 14:07:44,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 23713 states and 94824 transitions. [2022-07-14 14:07:44,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 14:07:44,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:44,970 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:44,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:07:45,170 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,SelfDestructingSolverStorable15 [2022-07-14 14:07:45,170 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:45,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash 185752134, now seen corresponding path program 1 times [2022-07-14 14:07:45,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:45,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814400202] [2022-07-14 14:07:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:45,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:45,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:45,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814400202] [2022-07-14 14:07:45,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814400202] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:07:45,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740044371] [2022-07-14 14:07:45,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:45,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:45,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:07:45,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:07:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:45,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:07:45,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:07:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:45,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:07:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:45,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740044371] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:07:45,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:07:45,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-07-14 14:07:45,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499747165] [2022-07-14 14:07:45,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:07:45,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 14:07:45,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:45,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 14:07:45,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:07:45,359 INFO L87 Difference]: Start difference. First operand 23713 states and 94824 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:46,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:46,060 INFO L93 Difference]: Finished difference Result 54370 states and 214791 transitions. [2022-07-14 14:07:46,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 14:07:46,060 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 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 21 [2022-07-14 14:07:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:46,589 INFO L225 Difference]: With dead ends: 54370 [2022-07-14 14:07:46,589 INFO L226 Difference]: Without dead ends: 54370 [2022-07-14 14:07:46,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2022-07-14 14:07:46,590 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 404 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:46,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 41 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:07:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54370 states. [2022-07-14 14:07:47,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54370 to 36996. [2022-07-14 14:07:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36996 states, 36996 states have (on average 3.9825927127257) internal successors, (147340), 36995 states have internal predecessors, (147340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36996 states to 36996 states and 147340 transitions. [2022-07-14 14:07:48,030 INFO L78 Accepts]: Start accepts. Automaton has 36996 states and 147340 transitions. Word has length 21 [2022-07-14 14:07:48,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:48,030 INFO L495 AbstractCegarLoop]: Abstraction has 36996 states and 147340 transitions. [2022-07-14 14:07:48,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 9 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:48,030 INFO L276 IsEmpty]: Start isEmpty. Operand 36996 states and 147340 transitions. [2022-07-14 14:07:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 14:07:48,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:48,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:48,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:07:48,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:48,252 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1207472136, now seen corresponding path program 1 times [2022-07-14 14:07:48,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:48,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344612587] [2022-07-14 14:07:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:48,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:48,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:48,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344612587] [2022-07-14 14:07:48,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344612587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:48,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:48,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:07:48,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251558576] [2022-07-14 14:07:48,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:48,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:07:48,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:48,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:07:48,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:07:48,308 INFO L87 Difference]: Start difference. First operand 36996 states and 147340 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:48,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:48,872 INFO L93 Difference]: Finished difference Result 47405 states and 189708 transitions. [2022-07-14 14:07:48,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 14:07:48,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-07-14 14:07:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:49,035 INFO L225 Difference]: With dead ends: 47405 [2022-07-14 14:07:49,035 INFO L226 Difference]: Without dead ends: 47405 [2022-07-14 14:07:49,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:07:49,036 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 209 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:49,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 39 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:07:49,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47405 states. [2022-07-14 14:07:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47405 to 41164. [2022-07-14 14:07:49,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41164 states, 41164 states have (on average 4.015013118258673) internal successors, (165274), 41163 states have internal predecessors, (165274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:50,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41164 states to 41164 states and 165274 transitions. [2022-07-14 14:07:50,133 INFO L78 Accepts]: Start accepts. Automaton has 41164 states and 165274 transitions. Word has length 21 [2022-07-14 14:07:50,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:50,134 INFO L495 AbstractCegarLoop]: Abstraction has 41164 states and 165274 transitions. [2022-07-14 14:07:50,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:50,134 INFO L276 IsEmpty]: Start isEmpty. Operand 41164 states and 165274 transitions. [2022-07-14 14:07:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 14:07:50,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:50,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:50,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 14:07:50,139 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:50,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:50,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1207472160, now seen corresponding path program 1 times [2022-07-14 14:07:50,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:50,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678003211] [2022-07-14 14:07:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:50,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:50,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:50,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678003211] [2022-07-14 14:07:50,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678003211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:50,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:50,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:07:50,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552421830] [2022-07-14 14:07:50,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:50,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 14:07:50,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:50,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 14:07:50,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:07:50,188 INFO L87 Difference]: Start difference. First operand 41164 states and 165274 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:50,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:50,706 INFO L93 Difference]: Finished difference Result 48104 states and 190552 transitions. [2022-07-14 14:07:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 14:07:50,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 21 [2022-07-14 14:07:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:51,229 INFO L225 Difference]: With dead ends: 48104 [2022-07-14 14:07:51,229 INFO L226 Difference]: Without dead ends: 48104 [2022-07-14 14:07:51,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-14 14:07:51,230 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 207 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:51,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 38 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:07:51,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48104 states. [2022-07-14 14:07:51,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48104 to 40332. [2022-07-14 14:07:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40332 states, 40332 states have (on average 3.9761975602499255) internal successors, (160368), 40331 states have internal predecessors, (160368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40332 states to 40332 states and 160368 transitions. [2022-07-14 14:07:52,483 INFO L78 Accepts]: Start accepts. Automaton has 40332 states and 160368 transitions. Word has length 21 [2022-07-14 14:07:52,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:52,483 INFO L495 AbstractCegarLoop]: Abstraction has 40332 states and 160368 transitions. [2022-07-14 14:07:52,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:52,483 INFO L276 IsEmpty]: Start isEmpty. Operand 40332 states and 160368 transitions. [2022-07-14 14:07:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 14:07:52,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:52,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:52,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 14:07:52,491 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:52,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:52,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1777007542, now seen corresponding path program 1 times [2022-07-14 14:07:52,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:52,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174160683] [2022-07-14 14:07:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:52,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:52,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:52,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174160683] [2022-07-14 14:07:52,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174160683] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:07:52,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213769622] [2022-07-14 14:07:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:52,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:52,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:52,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:07:52,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:07:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:52,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 14:07:52,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:07:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:52,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:07:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:52,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213769622] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:07:52,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:07:52,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-07-14 14:07:52,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543167886] [2022-07-14 14:07:52,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:07:52,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 14:07:52,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 14:07:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-14 14:07:52,715 INFO L87 Difference]: Start difference. First operand 40332 states and 160368 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:53,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:53,464 INFO L93 Difference]: Finished difference Result 46690 states and 184358 transitions. [2022-07-14 14:07:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 14:07:53,465 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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 22 [2022-07-14 14:07:53,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:53,665 INFO L225 Difference]: With dead ends: 46690 [2022-07-14 14:07:53,666 INFO L226 Difference]: Without dead ends: 46244 [2022-07-14 14:07:53,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2022-07-14 14:07:53,666 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 299 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:53,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 68 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 14:07:53,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46244 states. [2022-07-14 14:07:54,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46244 to 43370. [2022-07-14 14:07:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43370 states, 43370 states have (on average 3.965183306433018) internal successors, (171970), 43369 states have internal predecessors, (171970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:54,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43370 states to 43370 states and 171970 transitions. [2022-07-14 14:07:54,886 INFO L78 Accepts]: Start accepts. Automaton has 43370 states and 171970 transitions. Word has length 22 [2022-07-14 14:07:54,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:54,886 INFO L495 AbstractCegarLoop]: Abstraction has 43370 states and 171970 transitions. [2022-07-14 14:07:54,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 43370 states and 171970 transitions. [2022-07-14 14:07:54,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 14:07:54,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:54,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:54,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:07:55,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:55,096 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:55,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1759702563, now seen corresponding path program 1 times [2022-07-14 14:07:55,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:55,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136368534] [2022-07-14 14:07:55,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:55,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:07:55,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:55,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136368534] [2022-07-14 14:07:55,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136368534] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:07:55,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:07:55,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:07:55,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041403044] [2022-07-14 14:07:55,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:07:55,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:07:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:07:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:07:55,177 INFO L87 Difference]: Start difference. First operand 43370 states and 171970 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:55,949 INFO L93 Difference]: Finished difference Result 53564 states and 212090 transitions. [2022-07-14 14:07:55,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:07:55,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 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 22 [2022-07-14 14:07:55,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:56,190 INFO L225 Difference]: With dead ends: 53564 [2022-07-14 14:07:56,191 INFO L226 Difference]: Without dead ends: 51619 [2022-07-14 14:07:56,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:07:56,191 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 117 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:56,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 21 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:07:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51619 states. [2022-07-14 14:07:56,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51619 to 39039. [2022-07-14 14:07:56,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39039 states, 39039 states have (on average 3.9576064960680344) internal successors, (154501), 39038 states have internal predecessors, (154501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:57,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39039 states to 39039 states and 154501 transitions. [2022-07-14 14:07:57,468 INFO L78 Accepts]: Start accepts. Automaton has 39039 states and 154501 transitions. Word has length 22 [2022-07-14 14:07:57,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:07:57,468 INFO L495 AbstractCegarLoop]: Abstraction has 39039 states and 154501 transitions. [2022-07-14 14:07:57,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 39039 states and 154501 transitions. [2022-07-14 14:07:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 14:07:57,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:07:57,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:07:57,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-14 14:07:57,480 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:07:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:07:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash -748699643, now seen corresponding path program 1 times [2022-07-14 14:07:57,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:07:57,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052267036] [2022-07-14 14:07:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:07:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:57,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:07:57,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052267036] [2022-07-14 14:07:57,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052267036] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:07:57,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687208850] [2022-07-14 14:07:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:07:57,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:07:57,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:07:57,546 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:07:57,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:07:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:07:57,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:07:57,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:07:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:57,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:07:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:07:57,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687208850] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:07:57,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:07:57,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-14 14:07:57,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506524688] [2022-07-14 14:07:57,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:07:57,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 14:07:57,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:07:57,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:07:57,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:07:57,725 INFO L87 Difference]: Start difference. First operand 39039 states and 154501 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:07:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:07:59,231 INFO L93 Difference]: Finished difference Result 70560 states and 277983 transitions. [2022-07-14 14:07:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-14 14:07:59,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-14 14:07:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:07:59,514 INFO L225 Difference]: With dead ends: 70560 [2022-07-14 14:07:59,514 INFO L226 Difference]: Without dead ends: 70560 [2022-07-14 14:07:59,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=731, Invalid=1819, Unknown=0, NotChecked=0, Total=2550 [2022-07-14 14:07:59,516 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 984 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 984 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 14:07:59,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [984 Valid, 88 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 14:07:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70560 states.