./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_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_69-refine-protected-loop-interval_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 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:08:22,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:08:22,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:08:22,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:08:22,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:08:22,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:08:22,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:08:22,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:08:22,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:08:22,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:08:22,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:08:22,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:08:22,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:08:22,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:08:22,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:08:22,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:08:22,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:08:22,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:08:22,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:08:22,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:08:22,348 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:08:22,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:08:22,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:08:22,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:08:22,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:08:22,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:08:22,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:08:22,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:08:22,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:08:22,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:08:22,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:08:22,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:08:22,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:08:22,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:08:22,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:08:22,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:08:22,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:08:22,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:08:22,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:08:22,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:08:22,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:08:22,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:08:22,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:08:22,392 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:08:22,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:08:22,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:08:22,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:08:22,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:08:22,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:08:22,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:08:22,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:08:22,395 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:08:22,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:08:22,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:08:22,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:08:22,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:08:22,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:08:22,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:08:22,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:08:22,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:08:22,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:08:22,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:08:22,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:08:22,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:08:22,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:08:22,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:08:22,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2022-07-14 14:08:22,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:08:22,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:08:22,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:08:22,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:08:22,606 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:08:22,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-07-14 14:08:22,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5771fc3/313344684120427aa4eb4c85c8e9ab73/FLAGf2f91336a [2022-07-14 14:08:23,078 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:08:23,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2022-07-14 14:08:23,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5771fc3/313344684120427aa4eb4c85c8e9ab73/FLAGf2f91336a [2022-07-14 14:08:23,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5771fc3/313344684120427aa4eb4c85c8e9ab73 [2022-07-14 14:08:23,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:08:23,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:08:23,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:08:23,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:08:23,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:08:23,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b94bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23, skipping insertion in model container [2022-07-14 14:08:23,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:08:23,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:08:23,687 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_69-refine-protected-loop-interval_true.i[1107,1120] [2022-07-14 14:08:23,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:08:23,798 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:08:23,811 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_69-refine-protected-loop-interval_true.i[1107,1120] [2022-07-14 14:08:23,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:08:23,898 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:08:23,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23 WrapperNode [2022-07-14 14:08:23,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:08:23,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:08:23,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:08:23,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:08:23,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,961 INFO L137 Inliner]: procedures = 165, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 103 [2022-07-14 14:08:23,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:08:23,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:08:23,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:08:23,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:08:23,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:23,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:08:23,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:08:23,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:08:23,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:08:23,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (1/1) ... [2022-07-14 14:08:24,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:08:24,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:24,026 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 14:08:24,029 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 14:08:24,055 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-07-14 14:08:24,056 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-07-14 14:08:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:08:24,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:08:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:08:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:08:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:08:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:08:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:08:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:08:24,059 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 14:08:24,189 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:08:24,190 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:08:24,480 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:08:24,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:08:24,505 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 14:08:24,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:24 BoogieIcfgContainer [2022-07-14 14:08:24,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:08:24,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:08:24,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:08:24,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:08:24,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:08:23" (1/3) ... [2022-07-14 14:08:24,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce5751d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:24, skipping insertion in model container [2022-07-14 14:08:24,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:23" (2/3) ... [2022-07-14 14:08:24,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce5751d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:24, skipping insertion in model container [2022-07-14 14:08:24,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:24" (3/3) ... [2022-07-14 14:08:24,521 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2022-07-14 14:08:24,529 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:08:24,537 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:08:24,538 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-14 14:08:24,538 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:08:24,614 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-14 14:08:24,652 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:08:24,667 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 127 transitions, 259 flow [2022-07-14 14:08:24,676 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 127 transitions, 259 flow [2022-07-14 14:08:24,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 127 transitions, 259 flow [2022-07-14 14:08:24,773 INFO L129 PetriNetUnfolder]: 10/126 cut-off events. [2022-07-14 14:08:24,781 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-14 14:08:24,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 126 events. 10/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 225 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-07-14 14:08:24,804 INFO L116 LiptonReduction]: Number of co-enabled transitions 3900 [2022-07-14 14:08:27,364 INFO L131 LiptonReduction]: Checked pairs total: 7094 [2022-07-14 14:08:27,364 INFO L133 LiptonReduction]: Total number of compositions: 120 [2022-07-14 14:08:27,370 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 32 transitions, 69 flow [2022-07-14 14:08:27,390 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 170 states, 156 states have (on average 2.4166666666666665) internal successors, (377), 169 states have internal predecessors, (377), 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 14:08:27,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:08:27,413 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@5415e041, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ac04fec [2022-07-14 14:08:27,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-14 14:08:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 156 states have (on average 2.4166666666666665) internal successors, (377), 169 states have internal predecessors, (377), 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 14:08:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:08:27,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:27,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:08:27,424 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:27,430 INFO L85 PathProgramCache]: Analyzing trace with hash 476275418, now seen corresponding path program 1 times [2022-07-14 14:08:27,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:27,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204617335] [2022-07-14 14:08:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:27,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:27,612 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 14:08:27,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:27,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204617335] [2022-07-14 14:08:27,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204617335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:27,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:27,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:08:27,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475492632] [2022-07-14 14:08:27,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:27,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:27,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:27,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:27,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:27,633 INFO L87 Difference]: Start difference. First operand has 170 states, 156 states have (on average 2.4166666666666665) internal successors, (377), 169 states have internal predecessors, (377), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:08:27,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:27,712 INFO L93 Difference]: Finished difference Result 184 states and 398 transitions. [2022-07-14 14:08:27,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:27,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-07-14 14:08:27,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:27,724 INFO L225 Difference]: With dead ends: 184 [2022-07-14 14:08:27,725 INFO L226 Difference]: Without dead ends: 179 [2022-07-14 14:08:27,725 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 14:08:27,730 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:27,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:27,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-07-14 14:08:27,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 174. [2022-07-14 14:08:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 164 states have (on average 2.323170731707317) internal successors, (381), 173 states have internal predecessors, (381), 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 14:08:27,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 381 transitions. [2022-07-14 14:08:27,785 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 381 transitions. Word has length 5 [2022-07-14 14:08:27,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:27,785 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 381 transitions. [2022-07-14 14:08:27,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 14:08:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 381 transitions. [2022-07-14 14:08:27,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:08:27,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:27,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:27,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:08:27,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1324281398, now seen corresponding path program 1 times [2022-07-14 14:08:27,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:27,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774221300] [2022-07-14 14:08:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:27,861 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 14:08:27,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:27,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774221300] [2022-07-14 14:08:27,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774221300] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:27,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:27,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:08:27,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160445721] [2022-07-14 14:08:27,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:27,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:27,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:27,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:27,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:27,864 INFO L87 Difference]: Start difference. First operand 174 states and 381 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 14:08:27,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:27,910 INFO L93 Difference]: Finished difference Result 210 states and 457 transitions. [2022-07-14 14:08:27,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:27,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-07-14 14:08:27,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:27,912 INFO L225 Difference]: With dead ends: 210 [2022-07-14 14:08:27,912 INFO L226 Difference]: Without dead ends: 210 [2022-07-14 14:08:27,913 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 14:08:27,913 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:27,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:27,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-07-14 14:08:27,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-07-14 14:08:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 200 states have (on average 2.285) internal successors, (457), 209 states have internal predecessors, (457), 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 14:08:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 457 transitions. [2022-07-14 14:08:27,934 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 457 transitions. Word has length 9 [2022-07-14 14:08:27,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:27,935 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 457 transitions. [2022-07-14 14:08:27,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 14:08:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 457 transitions. [2022-07-14 14:08:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 14:08:27,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:27,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:27,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:08:27,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:27,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1897102168, now seen corresponding path program 1 times [2022-07-14 14:08:27,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:27,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906003741] [2022-07-14 14:08:27,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:27,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:27,989 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 14:08:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906003741] [2022-07-14 14:08:27,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906003741] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:27,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:27,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:08:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717667068] [2022-07-14 14:08:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:27,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:27,991 INFO L87 Difference]: Start difference. First operand 210 states and 457 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:28,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:28,024 INFO L93 Difference]: Finished difference Result 111 states and 210 transitions. [2022-07-14 14:08:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:28,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-14 14:08:28,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:28,026 INFO L225 Difference]: With dead ends: 111 [2022-07-14 14:08:28,027 INFO L226 Difference]: Without dead ends: 101 [2022-07-14 14:08:28,028 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 14:08:28,029 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:28,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-07-14 14:08:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2022-07-14 14:08:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 92 states have (on average 2.010869565217391) internal successors, (185), 99 states have internal predecessors, (185), 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 14:08:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 185 transitions. [2022-07-14 14:08:28,039 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 185 transitions. Word has length 10 [2022-07-14 14:08:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:28,040 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 185 transitions. [2022-07-14 14:08:28,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 185 transitions. [2022-07-14 14:08:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:08:28,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:28,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:28,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:08:28,040 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:28,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:28,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1323970257, now seen corresponding path program 1 times [2022-07-14 14:08:28,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:28,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569727900] [2022-07-14 14:08:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,103 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 14:08:28,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:28,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569727900] [2022-07-14 14:08:28,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569727900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:28,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:28,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:08:28,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264448833] [2022-07-14 14:08:28,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:28,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:08:28,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:08:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:08:28,105 INFO L87 Difference]: Start difference. First operand 100 states and 185 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 14:08:28,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:28,174 INFO L93 Difference]: Finished difference Result 147 states and 287 transitions. [2022-07-14 14:08:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:08:28,175 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 14:08:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:28,176 INFO L225 Difference]: With dead ends: 147 [2022-07-14 14:08:28,176 INFO L226 Difference]: Without dead ends: 147 [2022-07-14 14:08:28,176 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 14:08:28,177 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 28 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:28,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 7 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-07-14 14:08:28,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 118. [2022-07-14 14:08:28,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 2.0272727272727273) internal successors, (223), 117 states have internal predecessors, (223), 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 14:08:28,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 223 transitions. [2022-07-14 14:08:28,183 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 223 transitions. Word has length 11 [2022-07-14 14:08:28,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:28,183 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 223 transitions. [2022-07-14 14:08:28,183 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 14:08:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 223 transitions. [2022-07-14 14:08:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-14 14:08:28,184 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:28,184 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:28,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:08:28,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:28,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:28,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1901985041, now seen corresponding path program 1 times [2022-07-14 14:08:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:28,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097566252] [2022-07-14 14:08:28,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:28,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:28,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097566252] [2022-07-14 14:08:28,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097566252] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:28,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054332492] [2022-07-14 14:08:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:28,311 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 14:08:28,312 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 14:08:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:08:28,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:28,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:08:28,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054332492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:28,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:08:28,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2022-07-14 14:08:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676138140] [2022-07-14 14:08:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:28,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:08:28,439 INFO L87 Difference]: Start difference. First operand 118 states and 223 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 14:08:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:28,483 INFO L93 Difference]: Finished difference Result 133 states and 256 transitions. [2022-07-14 14:08:28,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:28,483 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 14:08:28,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:28,484 INFO L225 Difference]: With dead ends: 133 [2022-07-14 14:08:28,484 INFO L226 Difference]: Without dead ends: 133 [2022-07-14 14:08:28,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:08:28,485 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 21 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:28,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:28,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-07-14 14:08:28,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 121. [2022-07-14 14:08:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 113 states have (on average 2.0353982300884956) internal successors, (230), 120 states have internal predecessors, (230), 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 14:08:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 230 transitions. [2022-07-14 14:08:28,489 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 230 transitions. Word has length 12 [2022-07-14 14:08:28,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:28,490 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 230 transitions. [2022-07-14 14:08:28,490 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 14:08:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 230 transitions. [2022-07-14 14:08:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 14:08:28,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:28,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:28,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:28,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:28,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:28,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1711940363, now seen corresponding path program 1 times [2022-07-14 14:08:28,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:28,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702033202] [2022-07-14 14:08:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,731 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 14:08:28,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:28,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702033202] [2022-07-14 14:08:28,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702033202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:28,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:28,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:08:28,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817024148] [2022-07-14 14:08:28,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:28,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:28,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:28,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:28,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:28,732 INFO L87 Difference]: Start difference. First operand 121 states and 230 transitions. Second operand has 3 states, 2 states have (on average 7.0) 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 14:08:28,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:28,774 INFO L93 Difference]: Finished difference Result 124 states and 234 transitions. [2022-07-14 14:08:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:28,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) 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 14:08:28,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:28,776 INFO L225 Difference]: With dead ends: 124 [2022-07-14 14:08:28,776 INFO L226 Difference]: Without dead ends: 124 [2022-07-14 14:08:28,776 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 14:08:28,776 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:28,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-07-14 14:08:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 112. [2022-07-14 14:08:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.9439252336448598) internal successors, (208), 111 states have internal predecessors, (208), 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 14:08:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 208 transitions. [2022-07-14 14:08:28,780 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 208 transitions. Word has length 14 [2022-07-14 14:08:28,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:28,780 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 208 transitions. [2022-07-14 14:08:28,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) 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 14:08:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 208 transitions. [2022-07-14 14:08:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 14:08:28,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:28,780 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:08:28,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:08:28,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:28,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:28,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1460968125, now seen corresponding path program 1 times [2022-07-14 14:08:28,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:28,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882099564] [2022-07-14 14:08:28,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:28,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:28,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882099564] [2022-07-14 14:08:28,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882099564] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:28,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316000367] [2022-07-14 14:08:28,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:28,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:28,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:28,832 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 14:08:28,834 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 14:08:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:28,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:08:28,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:28,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:08:28,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316000367] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:28,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:08:28,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 14:08:28,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212664205] [2022-07-14 14:08:28,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:28,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:08:28,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:28,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:08:28,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:08:28,922 INFO L87 Difference]: Start difference. First operand 112 states and 208 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:28,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:28,957 INFO L93 Difference]: Finished difference Result 98 states and 177 transitions. [2022-07-14 14:08:28,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:08:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 14:08:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:28,958 INFO L225 Difference]: With dead ends: 98 [2022-07-14 14:08:28,958 INFO L226 Difference]: Without dead ends: 98 [2022-07-14 14:08:28,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 14:08:28,959 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 26 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:28,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:28,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-14 14:08:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-07-14 14:08:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 94 states have (on average 1.8829787234042554) internal successors, (177), 97 states have internal predecessors, (177), 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 14:08:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 177 transitions. [2022-07-14 14:08:28,967 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 177 transitions. Word has length 15 [2022-07-14 14:08:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:28,968 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 177 transitions. [2022-07-14 14:08:28,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 177 transitions. [2022-07-14 14:08:28,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 14:08:28,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:28,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:08:29,016 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 14:08:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-14 14:08:29,190 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1460968099, now seen corresponding path program 1 times [2022-07-14 14:08:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:29,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256489741] [2022-07-14 14:08:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:29,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:29,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256489741] [2022-07-14 14:08:29,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256489741] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:29,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532804378] [2022-07-14 14:08:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:29,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:29,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:29,234 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 14:08:29,260 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 14:08:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:29,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 14:08:29,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532804378] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:29,380 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:29,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 14:08:29,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13676951] [2022-07-14 14:08:29,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:29,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:08:29,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:08:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:08:29,381 INFO L87 Difference]: Start difference. First operand 98 states and 177 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 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 14:08:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:29,463 INFO L93 Difference]: Finished difference Result 235 states and 416 transitions. [2022-07-14 14:08:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:08:29,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 14:08:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:29,464 INFO L225 Difference]: With dead ends: 235 [2022-07-14 14:08:29,465 INFO L226 Difference]: Without dead ends: 229 [2022-07-14 14:08:29,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:08:29,465 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 57 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:29,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 36 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-07-14 14:08:29,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 181. [2022-07-14 14:08:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 177 states have (on average 2.0) internal successors, (354), 180 states have internal predecessors, (354), 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 14:08:29,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 354 transitions. [2022-07-14 14:08:29,469 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 354 transitions. Word has length 15 [2022-07-14 14:08:29,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:29,470 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 354 transitions. [2022-07-14 14:08:29,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 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 14:08:29,470 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 354 transitions. [2022-07-14 14:08:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 14:08:29,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:29,470 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:29,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-14 14:08:29,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:29,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:29,684 INFO L85 PathProgramCache]: Analyzing trace with hash -464071272, now seen corresponding path program 1 times [2022-07-14 14:08:29,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:29,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360902592] [2022-07-14 14:08:29,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:29,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:29,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360902592] [2022-07-14 14:08:29,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360902592] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:29,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742373266] [2022-07-14 14:08:29,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:29,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:29,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:29,748 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 14:08:29,784 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 14:08:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:29,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:08:29,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:29,881 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:29,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:29,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742373266] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:29,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:29,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-07-14 14:08:29,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703334907] [2022-07-14 14:08:29,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:29,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 14:08:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 14:08:29,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:08:29,898 INFO L87 Difference]: Start difference. First operand 181 states and 354 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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 14:08:30,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:30,045 INFO L93 Difference]: Finished difference Result 281 states and 531 transitions. [2022-07-14 14:08:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 14:08:30,045 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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 14:08:30,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:30,047 INFO L225 Difference]: With dead ends: 281 [2022-07-14 14:08:30,047 INFO L226 Difference]: Without dead ends: 281 [2022-07-14 14:08:30,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2022-07-14 14:08:30,049 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 73 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:30,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 12 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:30,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-07-14 14:08:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 210. [2022-07-14 14:08:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.9854368932038835) internal successors, (409), 209 states have internal predecessors, (409), 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 14:08:30,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 409 transitions. [2022-07-14 14:08:30,056 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 409 transitions. Word has length 17 [2022-07-14 14:08:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:30,056 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 409 transitions. [2022-07-14 14:08:30,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 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 14:08:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 409 transitions. [2022-07-14 14:08:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 14:08:30,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,057 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:30,076 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 14:08:30,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:30,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1067825670, now seen corresponding path program 1 times [2022-07-14 14:08:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109300100] [2022-07-14 14:08:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,331 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 14:08:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:30,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109300100] [2022-07-14 14:08:30,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109300100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:30,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:30,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 14:08:30,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830620338] [2022-07-14 14:08:30,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:30,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:08:30,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:30,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:08:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:08:30,333 INFO L87 Difference]: Start difference. First operand 210 states and 409 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:30,444 INFO L93 Difference]: Finished difference Result 218 states and 407 transitions. [2022-07-14 14:08:30,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 14:08:30,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-14 14:08:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:30,445 INFO L225 Difference]: With dead ends: 218 [2022-07-14 14:08:30,445 INFO L226 Difference]: Without dead ends: 206 [2022-07-14 14:08:30,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:08:30,446 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:30,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 11 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:30,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-14 14:08:30,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 204. [2022-07-14 14:08:30,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.91) internal successors, (382), 203 states have internal predecessors, (382), 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 14:08:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 382 transitions. [2022-07-14 14:08:30,452 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 382 transitions. Word has length 18 [2022-07-14 14:08:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:30,452 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 382 transitions. [2022-07-14 14:08:30,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 382 transitions. [2022-07-14 14:08:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-14 14:08:30,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:30,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:08:30,454 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1741653840, now seen corresponding path program 1 times [2022-07-14 14:08:30,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692579522] [2022-07-14 14:08:30,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:30,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:30,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692579522] [2022-07-14 14:08:30,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692579522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:30,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:30,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 14:08:30,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870032575] [2022-07-14 14:08:30,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:30,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:08:30,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:30,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:08:30,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:08:30,491 INFO L87 Difference]: Start difference. First operand 204 states and 382 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 14:08:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:30,565 INFO L93 Difference]: Finished difference Result 236 states and 443 transitions. [2022-07-14 14:08:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:08:30,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 14:08:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:30,569 INFO L225 Difference]: With dead ends: 236 [2022-07-14 14:08:30,569 INFO L226 Difference]: Without dead ends: 236 [2022-07-14 14:08:30,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 14:08:30,570 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 24 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:30,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 8 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-14 14:08:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 194. [2022-07-14 14:08:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 191 states have (on average 1.87434554973822) internal successors, (358), 193 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:08:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 358 transitions. [2022-07-14 14:08:30,575 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 358 transitions. Word has length 20 [2022-07-14 14:08:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:30,575 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 358 transitions. [2022-07-14 14:08:30,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 14:08:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 358 transitions. [2022-07-14 14:08:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 14:08:30,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,576 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2022-07-14 14:08:30,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 14:08:30,576 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:30,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,577 INFO L85 PathProgramCache]: Analyzing trace with hash 587247657, now seen corresponding path program 1 times [2022-07-14 14:08:30,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594495386] [2022-07-14 14:08:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 14:08:30,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:30,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594495386] [2022-07-14 14:08:30,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594495386] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:08:30,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:08:30,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:08:30,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132724177] [2022-07-14 14:08:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:08:30,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:08:30,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:08:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:08:30,607 INFO L87 Difference]: Start difference. First operand 194 states and 358 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 14:08:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:30,628 INFO L93 Difference]: Finished difference Result 192 states and 352 transitions. [2022-07-14 14:08:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:08:30,628 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 24 [2022-07-14 14:08:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:30,629 INFO L225 Difference]: With dead ends: 192 [2022-07-14 14:08:30,629 INFO L226 Difference]: Without dead ends: 192 [2022-07-14 14:08:30,630 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 14:08:30,630 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:30,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:08:30,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-07-14 14:08:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2022-07-14 14:08:30,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 189 states have (on average 1.8571428571428572) internal successors, (351), 190 states have internal predecessors, (351), 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 14:08:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 351 transitions. [2022-07-14 14:08:30,635 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 351 transitions. Word has length 24 [2022-07-14 14:08:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:30,648 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 351 transitions. [2022-07-14 14:08:30,649 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 14:08:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 351 transitions. [2022-07-14 14:08:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 14:08:30,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:30,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:30,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 14:08:30,650 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:30,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:30,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1143196321, now seen corresponding path program 1 times [2022-07-14 14:08:30,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:30,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808725551] [2022-07-14 14:08:30,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:30,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808725551] [2022-07-14 14:08:30,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808725551] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:30,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573507927] [2022-07-14 14:08:30,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:30,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:30,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:30,702 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 14:08:30,703 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 14:08:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:30,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:08:30,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:30,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:30,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573507927] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:30,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:30,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2022-07-14 14:08:30,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291644948] [2022-07-14 14:08:30,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:30,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 14:08:30,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:30,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 14:08:30,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-07-14 14:08:30,875 INFO L87 Difference]: Start difference. First operand 191 states and 351 transitions. Second operand has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 14:08:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:31,073 INFO L93 Difference]: Finished difference Result 303 states and 546 transitions. [2022-07-14 14:08:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 14:08:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 24 [2022-07-14 14:08:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:31,075 INFO L225 Difference]: With dead ends: 303 [2022-07-14 14:08:31,075 INFO L226 Difference]: Without dead ends: 279 [2022-07-14 14:08:31,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2022-07-14 14:08:31,076 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 81 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:31,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 12 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2022-07-14 14:08:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 198. [2022-07-14 14:08:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 198 states have (on average 1.6717171717171717) internal successors, (331), 197 states have internal predecessors, (331), 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 14:08:31,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 331 transitions. [2022-07-14 14:08:31,080 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 331 transitions. Word has length 24 [2022-07-14 14:08:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:31,081 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 331 transitions. [2022-07-14 14:08:31,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.571428571428571) internal successors, (64), 15 states have internal predecessors, (64), 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 14:08:31,081 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 331 transitions. [2022-07-14 14:08:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 14:08:31,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:31,081 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-07-14 14:08:31,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:31,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 14:08:31,298 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash 793070658, now seen corresponding path program 1 times [2022-07-14 14:08:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:31,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137148485] [2022-07-14 14:08:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:31,336 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:31,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:31,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137148485] [2022-07-14 14:08:31,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137148485] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:31,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89042362] [2022-07-14 14:08:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:31,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:31,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:31,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:31,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:08:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:31,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:08:31,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:08:31,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 14:08:31,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89042362] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:31,574 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:31,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 21 [2022-07-14 14:08:31,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242030722] [2022-07-14 14:08:31,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:31,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-14 14:08:31,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:31,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-14 14:08:31,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-07-14 14:08:31,576 INFO L87 Difference]: Start difference. First operand 198 states and 331 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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 14:08:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:32,011 INFO L93 Difference]: Finished difference Result 343 states and 556 transitions. [2022-07-14 14:08:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-07-14 14:08:32,012 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-14 14:08:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:32,013 INFO L225 Difference]: With dead ends: 343 [2022-07-14 14:08:32,013 INFO L226 Difference]: Without dead ends: 341 [2022-07-14 14:08:32,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2022-07-14 14:08:32,014 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 444 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:32,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 41 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-07-14 14:08:32,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 281. [2022-07-14 14:08:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 281 states have (on average 1.6263345195729537) internal successors, (457), 280 states have internal predecessors, (457), 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 14:08:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 457 transitions. [2022-07-14 14:08:32,020 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 457 transitions. Word has length 29 [2022-07-14 14:08:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:32,020 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 457 transitions. [2022-07-14 14:08:32,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 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 14:08:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 457 transitions. [2022-07-14 14:08:32,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-14 14:08:32,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:32,021 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 1, 1, 1, 1] [2022-07-14 14:08:32,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:32,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:32,237 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:32,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1231740865, now seen corresponding path program 2 times [2022-07-14 14:08:32,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:32,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018257715] [2022-07-14 14:08:32,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:32,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:32,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018257715] [2022-07-14 14:08:32,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018257715] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:32,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174315038] [2022-07-14 14:08:32,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:08:32,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:32,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:32,356 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:32,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:08:32,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:08:32,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:08:32,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 14:08:32,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:32,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:32,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174315038] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:32,556 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:32,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-07-14 14:08:32,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979816896] [2022-07-14 14:08:32,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:32,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-14 14:08:32,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:32,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-14 14:08:32,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-07-14 14:08:32,557 INFO L87 Difference]: Start difference. First operand 281 states and 457 transitions. Second operand has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 15 states have internal predecessors, (83), 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 14:08:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:32,700 INFO L93 Difference]: Finished difference Result 633 states and 1017 transitions. [2022-07-14 14:08:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 14:08:32,701 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 15 states have internal predecessors, (83), 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 39 [2022-07-14 14:08:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:32,703 INFO L225 Difference]: With dead ends: 633 [2022-07-14 14:08:32,703 INFO L226 Difference]: Without dead ends: 619 [2022-07-14 14:08:32,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2022-07-14 14:08:32,704 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 246 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:32,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 73 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:08:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-14 14:08:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 600. [2022-07-14 14:08:32,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 600 states have (on average 1.585) internal successors, (951), 599 states have internal predecessors, (951), 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 14:08:32,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 951 transitions. [2022-07-14 14:08:32,722 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 951 transitions. Word has length 39 [2022-07-14 14:08:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:32,722 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 951 transitions. [2022-07-14 14:08:32,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.928571428571429) internal successors, (83), 15 states have internal predecessors, (83), 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 14:08:32,722 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 951 transitions. [2022-07-14 14:08:32,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 14:08:32,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:32,723 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2022-07-14 14:08:32,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:32,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:32,937 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:32,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:32,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1564941710, now seen corresponding path program 2 times [2022-07-14 14:08:32,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:32,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139824191] [2022-07-14 14:08:32,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:32,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:33,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:33,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139824191] [2022-07-14 14:08:33,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139824191] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:33,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204084166] [2022-07-14 14:08:33,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:08:33,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:33,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:33,076 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:33,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:08:33,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:08:33,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:08:33,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 14:08:33,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:33,396 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 17 proven. 240 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:08:33,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 17 proven. 240 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-14 14:08:33,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204084166] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:33,689 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:33,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 16] total 45 [2022-07-14 14:08:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555159745] [2022-07-14 14:08:33,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:33,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-07-14 14:08:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:33,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-07-14 14:08:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=1604, Unknown=0, NotChecked=0, Total=1980 [2022-07-14 14:08:33,693 INFO L87 Difference]: Start difference. First operand 600 states and 951 transitions. Second operand has 45 states, 45 states have (on average 3.7555555555555555) internal successors, (169), 45 states have internal predecessors, (169), 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 14:08:35,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:35,238 INFO L93 Difference]: Finished difference Result 839 states and 1308 transitions. [2022-07-14 14:08:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-07-14 14:08:35,239 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.7555555555555555) internal successors, (169), 45 states have internal predecessors, (169), 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 69 [2022-07-14 14:08:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:35,242 INFO L225 Difference]: With dead ends: 839 [2022-07-14 14:08:35,242 INFO L226 Difference]: Without dead ends: 837 [2022-07-14 14:08:35,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3454 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=3151, Invalid=9281, Unknown=0, NotChecked=0, Total=12432 [2022-07-14 14:08:35,246 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1212 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:35,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 101 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 14:08:35,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2022-07-14 14:08:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 697. [2022-07-14 14:08:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 697 states have (on average 1.5624103299856529) internal successors, (1089), 696 states have internal predecessors, (1089), 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 14:08:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1089 transitions. [2022-07-14 14:08:35,264 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1089 transitions. Word has length 69 [2022-07-14 14:08:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:35,264 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 1089 transitions. [2022-07-14 14:08:35,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.7555555555555555) internal successors, (169), 45 states have internal predecessors, (169), 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 14:08:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1089 transitions. [2022-07-14 14:08:35,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 14:08:35,266 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:35,266 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 11, 11, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:35,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-14 14:08:35,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 14:08:35,491 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:35,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1157781875, now seen corresponding path program 1 times [2022-07-14 14:08:35,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:35,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647953458] [2022-07-14 14:08:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:35,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:35,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:35,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647953458] [2022-07-14 14:08:35,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647953458] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:35,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120362063] [2022-07-14 14:08:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:35,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:35,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:35,659 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:35,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 14:08:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:35,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 14:08:35,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 113 proven. 22 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-07-14 14:08:35,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 113 proven. 22 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-07-14 14:08:36,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120362063] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:36,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:36,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 32 [2022-07-14 14:08:36,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297608256] [2022-07-14 14:08:36,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:36,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-14 14:08:36,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-14 14:08:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2022-07-14 14:08:36,082 INFO L87 Difference]: Start difference. First operand 697 states and 1089 transitions. Second operand has 32 states, 32 states have (on average 4.3125) internal successors, (138), 32 states have internal predecessors, (138), 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 14:08:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:40,438 INFO L93 Difference]: Finished difference Result 1666 states and 2556 transitions. [2022-07-14 14:08:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2022-07-14 14:08:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 4.3125) internal successors, (138), 32 states have internal predecessors, (138), 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 73 [2022-07-14 14:08:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:40,442 INFO L225 Difference]: With dead ends: 1666 [2022-07-14 14:08:40,443 INFO L226 Difference]: Without dead ends: 1664 [2022-07-14 14:08:40,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33243 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=13627, Invalid=60085, Unknown=0, NotChecked=0, Total=73712 [2022-07-14 14:08:40,455 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1086 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:40,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 65 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 14:08:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-07-14 14:08:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 867. [2022-07-14 14:08:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 867 states have (on average 1.5236447520184544) internal successors, (1321), 866 states have internal predecessors, (1321), 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 14:08:40,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1321 transitions. [2022-07-14 14:08:40,498 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1321 transitions. Word has length 73 [2022-07-14 14:08:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:40,498 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1321 transitions. [2022-07-14 14:08:40,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 4.3125) internal successors, (138), 32 states have internal predecessors, (138), 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 14:08:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1321 transitions. [2022-07-14 14:08:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-14 14:08:40,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:40,499 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 10, 10, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:40,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:40,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-14 14:08:40,715 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1033299567, now seen corresponding path program 2 times [2022-07-14 14:08:40,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:40,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298810770] [2022-07-14 14:08:40,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:40,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:40,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298810770] [2022-07-14 14:08:40,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298810770] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:40,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264713163] [2022-07-14 14:08:40,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:08:40,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:40,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:40,931 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:40,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 14:08:41,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:08:41,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:08:41,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 14:08:41,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 23 proven. 181 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-14 14:08:41,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 23 proven. 181 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-14 14:08:41,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264713163] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:41,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:41,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 37 [2022-07-14 14:08:41,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813425755] [2022-07-14 14:08:41,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:41,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-07-14 14:08:41,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-07-14 14:08:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1082, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 14:08:41,413 INFO L87 Difference]: Start difference. First operand 867 states and 1321 transitions. Second operand has 37 states, 37 states have (on average 4.351351351351352) internal successors, (161), 37 states have internal predecessors, (161), 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 14:08:46,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:08:46,937 INFO L93 Difference]: Finished difference Result 2367 states and 3595 transitions. [2022-07-14 14:08:46,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 333 states. [2022-07-14 14:08:46,938 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.351351351351352) internal successors, (161), 37 states have internal predecessors, (161), 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 81 [2022-07-14 14:08:46,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:08:46,943 INFO L225 Difference]: With dead ends: 2367 [2022-07-14 14:08:46,943 INFO L226 Difference]: Without dead ends: 2365 [2022-07-14 14:08:46,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 348 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56961 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=22016, Invalid=100134, Unknown=0, NotChecked=0, Total=122150 [2022-07-14 14:08:46,952 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1512 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 14:08:46,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 85 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 14:08:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2022-07-14 14:08:46,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 1236. [2022-07-14 14:08:46,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 1236 states have (on average 1.5137540453074434) internal successors, (1871), 1235 states have internal predecessors, (1871), 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 14:08:46,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1871 transitions. [2022-07-14 14:08:46,973 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1871 transitions. Word has length 81 [2022-07-14 14:08:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:08:46,973 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1871 transitions. [2022-07-14 14:08:46,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.351351351351352) internal successors, (161), 37 states have internal predecessors, (161), 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 14:08:46,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1871 transitions. [2022-07-14 14:08:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-14 14:08:46,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:08:46,974 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 9, 9, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:08:46,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:08:47,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 14:08:47,192 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:08:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:08:47,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1122055855, now seen corresponding path program 3 times [2022-07-14 14:08:47,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:08:47,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025454448] [2022-07-14 14:08:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:08:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:08:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:08:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 0 proven. 459 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:08:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:08:47,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025454448] [2022-07-14 14:08:47,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025454448] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:08:47,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683873629] [2022-07-14 14:08:47,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 14:08:47,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:08:47,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:08:47,336 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:08:47,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 14:08:47,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-07-14 14:08:47,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:08:47,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-14 14:08:47,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:08:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 23 proven. 294 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-14 14:08:47,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:08:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 23 proven. 294 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-14 14:08:48,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683873629] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:08:48,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:08:48,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 46 [2022-07-14 14:08:48,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421842619] [2022-07-14 14:08:48,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:08:48,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-07-14 14:08:48,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:08:48,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-07-14 14:08:48,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=1703, Unknown=0, NotChecked=0, Total=2070 [2022-07-14 14:08:48,036 INFO L87 Difference]: Start difference. First operand 1236 states and 1871 transitions. Second operand has 46 states, 46 states have (on average 4.195652173913044) internal successors, (193), 46 states have internal predecessors, (193), 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 14:09:00,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:09:00,134 INFO L93 Difference]: Finished difference Result 3871 states and 5883 transitions. [2022-07-14 14:09:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 497 states. [2022-07-14 14:09:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.195652173913044) internal successors, (193), 46 states have internal predecessors, (193), 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 89 [2022-07-14 14:09:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:09:00,145 INFO L225 Difference]: With dead ends: 3871 [2022-07-14 14:09:00,145 INFO L226 Difference]: Without dead ends: 3869 [2022-07-14 14:09:00,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 517 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130767 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=47762, Invalid=221080, Unknown=0, NotChecked=0, Total=268842 [2022-07-14 14:09:00,159 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2532 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 2278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:09:00,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 105 Invalid, 2278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 14:09:00,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3869 states. [2022-07-14 14:09:00,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3869 to 1501. [2022-07-14 14:09:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1501 states have (on average 1.4830113257828115) internal successors, (2226), 1500 states have internal predecessors, (2226), 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 14:09:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2226 transitions. [2022-07-14 14:09:00,189 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2226 transitions. Word has length 89 [2022-07-14 14:09:00,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:09:00,189 INFO L495 AbstractCegarLoop]: Abstraction has 1501 states and 2226 transitions. [2022-07-14 14:09:00,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.195652173913044) internal successors, (193), 46 states have internal predecessors, (193), 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 14:09:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2226 transitions. [2022-07-14 14:09:00,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-14 14:09:00,195 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:09:00,195 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:09:00,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 14:09:00,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:09:00,411 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:09:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:09:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1775710413, now seen corresponding path program 4 times [2022-07-14 14:09:00,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:09:00,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323272714] [2022-07-14 14:09:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:09:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:09:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:09:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:09:00,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:09:00,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323272714] [2022-07-14 14:09:00,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323272714] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:09:00,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520491018] [2022-07-14 14:09:00,594 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 14:09:00,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:09:00,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:09:00,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:09:00,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 14:09:00,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 14:09:00,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:09:00,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-14 14:09:00,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:09:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:09:00,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:09:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:09:01,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520491018] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:09:01,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:09:01,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 36 [2022-07-14 14:09:01,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375983658] [2022-07-14 14:09:01,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:09:01,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-07-14 14:09:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:09:01,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-07-14 14:09:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 14:09:01,273 INFO L87 Difference]: Start difference. First operand 1501 states and 2226 transitions. Second operand has 37 states, 36 states have (on average 5.527777777777778) internal successors, (199), 37 states have internal predecessors, (199), 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 14:09:01,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:09:01,739 INFO L93 Difference]: Finished difference Result 3409 states and 5088 transitions. [2022-07-14 14:09:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-14 14:09:01,740 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 5.527777777777778) internal successors, (199), 37 states have internal predecessors, (199), 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 97 [2022-07-14 14:09:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:09:01,748 INFO L225 Difference]: With dead ends: 3409 [2022-07-14 14:09:01,748 INFO L226 Difference]: Without dead ends: 3373 [2022-07-14 14:09:01,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 14:09:01,748 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1178 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:09:01,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 181 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:09:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2022-07-14 14:09:01,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3319. [2022-07-14 14:09:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3319 states, 3319 states have (on average 1.4733353419704731) internal successors, (4890), 3318 states have internal predecessors, (4890), 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 14:09:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4890 transitions. [2022-07-14 14:09:01,787 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4890 transitions. Word has length 97 [2022-07-14 14:09:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:09:01,787 INFO L495 AbstractCegarLoop]: Abstraction has 3319 states and 4890 transitions. [2022-07-14 14:09:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 5.527777777777778) internal successors, (199), 37 states have internal predecessors, (199), 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 14:09:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4890 transitions. [2022-07-14 14:09:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-07-14 14:09:01,790 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:09:01,790 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 26, 26, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:09:01,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 14:09:02,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:09:02,003 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:09:02,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:09:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -788838581, now seen corresponding path program 5 times [2022-07-14 14:09:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:09:02,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097631073] [2022-07-14 14:09:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:09:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:09:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:09:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 0 proven. 2218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:09:02,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:09:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097631073] [2022-07-14 14:09:02,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097631073] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:09:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566392851] [2022-07-14 14:09:02,629 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-14 14:09:02,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:09:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:09:02,634 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:09:02,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 14:09:02,951 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-07-14 14:09:02,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:09:02,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-14 14:09:02,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:09:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 1028 proven. 384 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-07-14 14:09:03,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:09:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 1028 proven. 384 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2022-07-14 14:09:03,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566392851] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:09:03,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:09:03,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 19, 19] total 73 [2022-07-14 14:09:03,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115370020] [2022-07-14 14:09:03,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:09:03,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-07-14 14:09:03,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:09:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-07-14 14:09:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1012, Invalid=4244, Unknown=0, NotChecked=0, Total=5256 [2022-07-14 14:09:03,794 INFO L87 Difference]: Start difference. First operand 3319 states and 4890 transitions. Second operand has 73 states, 73 states have (on average 4.109589041095891) internal successors, (300), 73 states have internal predecessors, (300), 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 14:09:57,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:09:57,721 INFO L93 Difference]: Finished difference Result 11922 states and 17666 transitions. [2022-07-14 14:09:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1474 states. [2022-07-14 14:09:57,722 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 4.109589041095891) internal successors, (300), 73 states have internal predecessors, (300), 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 169 [2022-07-14 14:09:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:09:57,754 INFO L225 Difference]: With dead ends: 11922 [2022-07-14 14:09:57,754 INFO L226 Difference]: Without dead ends: 11920 [2022-07-14 14:09:57,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1800 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 1499 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230819 ImplicationChecksByTransitivity, 45.1s TimeCoverageRelationStatistics Valid=379124, Invalid=1872376, Unknown=0, NotChecked=0, Total=2251500 [2022-07-14 14:09:57,889 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8921 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 4856 mSolverCounterSat, 1727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8921 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 6583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1727 IncrementalHoareTripleChecker+Valid, 4856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:09:57,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8921 Valid, 199 Invalid, 6583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1727 Valid, 4856 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-14 14:09:57,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11920 states. [2022-07-14 14:09:58,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11920 to 3899. [2022-07-14 14:09:58,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3899 states, 3899 states have (on average 1.4560143626570916) internal successors, (5677), 3898 states have internal predecessors, (5677), 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 14:09:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3899 states to 3899 states and 5677 transitions. [2022-07-14 14:09:58,087 INFO L78 Accepts]: Start accepts. Automaton has 3899 states and 5677 transitions. Word has length 169 [2022-07-14 14:09:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:09:58,088 INFO L495 AbstractCegarLoop]: Abstraction has 3899 states and 5677 transitions. [2022-07-14 14:09:58,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 4.109589041095891) internal successors, (300), 73 states have internal predecessors, (300), 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 14:09:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3899 states and 5677 transitions. [2022-07-14 14:09:58,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-07-14 14:09:58,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:09:58,092 INFO L195 NwaCegarLoop]: trace histogram [36, 35, 29, 29, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:09:58,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 14:09:58,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-14 14:09:58,308 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:09:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:09:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash 357419638, now seen corresponding path program 6 times [2022-07-14 14:09:58,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:09:58,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557970460] [2022-07-14 14:09:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:09:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:09:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:09:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 0 proven. 2366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:09:58,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:09:58,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557970460] [2022-07-14 14:09:58,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557970460] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:09:58,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459749234] [2022-07-14 14:09:58,909 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-14 14:09:58,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:09:58,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:09:58,910 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:09:58,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-14 14:09:59,217 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-07-14 14:09:59,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:09:59,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-14 14:09:59,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:09:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 63 proven. 695 refuted. 0 times theorem prover too weak. 1608 trivial. 0 not checked. [2022-07-14 14:09:59,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:10:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2366 backedges. 63 proven. 695 refuted. 0 times theorem prover too weak. 1608 trivial. 0 not checked. [2022-07-14 14:10:00,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459749234] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:10:00,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:10:00,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 14, 14] total 64 [2022-07-14 14:10:00,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917839514] [2022-07-14 14:10:00,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:10:00,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-14 14:10:00,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:00,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-14 14:10:00,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=872, Invalid=3160, Unknown=0, NotChecked=0, Total=4032 [2022-07-14 14:10:00,051 INFO L87 Difference]: Start difference. First operand 3899 states and 5677 transitions. Second operand has 64 states, 64 states have (on average 4.40625) internal successors, (282), 64 states have internal predecessors, (282), 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 14:10:50,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:50,734 INFO L93 Difference]: Finished difference Result 21529 states and 31078 transitions. [2022-07-14 14:10:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1420 states. [2022-07-14 14:10:50,734 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 4.40625) internal successors, (282), 64 states have internal predecessors, (282), 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 176 [2022-07-14 14:10:50,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:50,770 INFO L225 Difference]: With dead ends: 21529 [2022-07-14 14:10:50,770 INFO L226 Difference]: Without dead ends: 21325 [2022-07-14 14:10:50,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1762 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1437 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1170455 ImplicationChecksByTransitivity, 41.3s TimeCoverageRelationStatistics Valid=362448, Invalid=1706834, Unknown=0, NotChecked=0, Total=2069282 [2022-07-14 14:10:50,906 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5150 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 5543 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 6559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 5543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:50,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 199 Invalid, 6559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1016 Valid, 5543 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-14 14:10:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21325 states. [2022-07-14 14:10:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21325 to 10593. [2022-07-14 14:10:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10593 states, 10593 states have (on average 1.4241480222788634) internal successors, (15086), 10592 states have internal predecessors, (15086), 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 14:10:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10593 states to 10593 states and 15086 transitions. [2022-07-14 14:10:51,129 INFO L78 Accepts]: Start accepts. Automaton has 10593 states and 15086 transitions. Word has length 176 [2022-07-14 14:10:51,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:51,130 INFO L495 AbstractCegarLoop]: Abstraction has 10593 states and 15086 transitions. [2022-07-14 14:10:51,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 4.40625) internal successors, (282), 64 states have internal predecessors, (282), 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 14:10:51,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10593 states and 15086 transitions. [2022-07-14 14:10:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-14 14:10:51,139 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:51,139 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 25, 25, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:51,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-14 14:10:51,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:10:51,356 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:10:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:51,357 INFO L85 PathProgramCache]: Analyzing trace with hash 697681844, now seen corresponding path program 7 times [2022-07-14 14:10:51,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:51,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196734150] [2022-07-14 14:10:51,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:51,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2496 backedges. 0 proven. 2496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:10:51,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:51,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196734150] [2022-07-14 14:10:51,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196734150] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:10:51,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569555770] [2022-07-14 14:10:51,954 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-14 14:10:51,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:10:51,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:10:51,968 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:10:51,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-14 14:10:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:52,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 28 conjunts are in the unsatisfiable core [2022-07-14 14:10:52,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:10:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2496 backedges. 924 proven. 414 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-07-14 14:10:52,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:10:53,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2496 backedges. 924 proven. 414 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-07-14 14:10:53,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569555770] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:10:53,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:10:53,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 25, 25] total 87 [2022-07-14 14:10:53,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871134915] [2022-07-14 14:10:53,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:10:53,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-07-14 14:10:53,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:53,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-07-14 14:10:53,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1345, Invalid=6137, Unknown=0, NotChecked=0, Total=7482 [2022-07-14 14:10:53,757 INFO L87 Difference]: Start difference. First operand 10593 states and 15086 transitions. Second operand has 87 states, 87 states have (on average 3.9770114942528734) internal successors, (346), 87 states have internal predecessors, (346), 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 14:12:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:12:29,471 INFO L93 Difference]: Finished difference Result 35442 states and 51539 transitions. [2022-07-14 14:12:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2015 states. [2022-07-14 14:12:29,471 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.9770114942528734) internal successors, (346), 87 states have internal predecessors, (346), 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 183 [2022-07-14 14:12:29,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:12:29,524 INFO L225 Difference]: With dead ends: 35442 [2022-07-14 14:12:29,524 INFO L226 Difference]: Without dead ends: 35437 [2022-07-14 14:12:29,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2365 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 2048 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2318152 ImplicationChecksByTransitivity, 80.6s TimeCoverageRelationStatistics Valid=700887, Invalid=3499563, Unknown=0, NotChecked=0, Total=4200450 [2022-07-14 14:12:29,786 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 8769 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 6027 mSolverCounterSat, 1964 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8769 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 7991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1964 IncrementalHoareTripleChecker+Valid, 6027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-14 14:12:29,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8769 Valid, 216 Invalid, 7991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1964 Valid, 6027 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-14 14:12:29,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35437 states. [2022-07-14 14:12:30,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35437 to 12848. [2022-07-14 14:12:30,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12848 states, 12848 states have (on average 1.4277708592777085) internal successors, (18344), 12847 states have internal predecessors, (18344), 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 14:12:30,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12848 states to 12848 states and 18344 transitions. [2022-07-14 14:12:30,265 INFO L78 Accepts]: Start accepts. Automaton has 12848 states and 18344 transitions. Word has length 183 [2022-07-14 14:12:30,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:12:30,266 INFO L495 AbstractCegarLoop]: Abstraction has 12848 states and 18344 transitions. [2022-07-14 14:12:30,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.9770114942528734) internal successors, (346), 87 states have internal predecessors, (346), 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 14:12:30,266 INFO L276 IsEmpty]: Start isEmpty. Operand 12848 states and 18344 transitions. [2022-07-14 14:12:30,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-14 14:12:30,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:12:30,303 INFO L195 NwaCegarLoop]: trace histogram [38, 37, 28, 28, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:12:30,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-14 14:12:30,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:30,524 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-14 14:12:30,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:12:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -199741373, now seen corresponding path program 8 times [2022-07-14 14:12:30,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:12:30,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511304001] [2022-07-14 14:12:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:12:30,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:12:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:12:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 0 proven. 2629 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:12:31,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:12:31,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511304001] [2022-07-14 14:12:31,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511304001] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:12:31,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016214685] [2022-07-14 14:12:31,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:12:31,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:12:31,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:12:31,157 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:12:31,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-14 14:12:31,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 14:12:31,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:12:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-14 14:12:31,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:12:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 64 proven. 1068 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2022-07-14 14:12:31,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:12:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 64 proven. 1068 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2022-07-14 14:12:32,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016214685] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:12:32,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:12:32,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 20, 20] total 78 [2022-07-14 14:12:32,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008728738] [2022-07-14 14:12:32,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:12:32,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-07-14 14:12:32,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:12:32,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-07-14 14:12:32,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1135, Invalid=4871, Unknown=0, NotChecked=0, Total=6006 [2022-07-14 14:12:32,363 INFO L87 Difference]: Start difference. First operand 12848 states and 18344 transitions. Second operand has 78 states, 78 states have (on average 4.256410256410256) internal successors, (332), 78 states have internal predecessors, (332), 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)