./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.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/28-race_reach_41-trylock_racefree.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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:10:30,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:10:30,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:10:30,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:10:30,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:10:30,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:10:30,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:10:30,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:10:30,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:10:30,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:10:30,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:10:30,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:10:30,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:10:30,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:10:30,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:10:30,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:10:30,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:10:30,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:10:30,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:10:30,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:10:30,100 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:10:30,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:10:30,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:10:30,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:10:30,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:10:30,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:10:30,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:10:30,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:10:30,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:10:30,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:10:30,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:10:30,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:10:30,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:10:30,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:10:30,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:10:30,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:10:30,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:10:30,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:10:30,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:10:30,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:10:30,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:10:30,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:10:30,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:10:30,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:10:30,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:10:30,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:10:30,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:10:30,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:10:30,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:10:30,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:10:30,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:10:30,139 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:10:30,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:10:30,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:10:30,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:10:30,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:10:30,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:10:30,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:10:30,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:10:30,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:10:30,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:10:30,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:10:30,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:10:30,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:10:30,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:10:30,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2022-07-14 14:10:30,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:10:30,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:10:30,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:10:30,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:10:30,331 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:10:30,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-07-14 14:10:30,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f86598eb/f57fe346bdc342f093cfbdaef7b1a98d/FLAG46f73eacc [2022-07-14 14:10:30,804 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:10:30,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2022-07-14 14:10:30,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f86598eb/f57fe346bdc342f093cfbdaef7b1a98d/FLAG46f73eacc [2022-07-14 14:10:30,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f86598eb/f57fe346bdc342f093cfbdaef7b1a98d [2022-07-14 14:10:30,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:10:30,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:10:30,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:10:30,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:10:30,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:10:30,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:30" (1/1) ... [2022-07-14 14:10:30,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285c1b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:30, skipping insertion in model container [2022-07-14 14:10:30,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:30" (1/1) ... [2022-07-14 14:10:30,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:10:30,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:10:31,180 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/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-07-14 14:10:31,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:10:31,203 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:10:31,237 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/28-race_reach_41-trylock_racefree.i[30176,30189] [2022-07-14 14:10:31,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:10:31,269 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:10:31,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31 WrapperNode [2022-07-14 14:10:31,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:10:31,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:10:31,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:10:31,273 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:10:31,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,313 INFO L137 Inliner]: procedures = 171, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-07-14 14:10:31,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:10:31,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:10:31,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:10:31,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:10:31,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:10:31,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:10:31,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:10:31,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:10:31,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (1/1) ... [2022-07-14 14:10:31,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:10:31,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:10:31,386 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 14:10:31,413 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 14:10:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:10:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:10:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:10:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-07-14 14:10:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:10:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:10:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:10:31,433 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 14:10:31,538 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:10:31,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:10:31,710 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:10:31,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:10:31,717 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-07-14 14:10:31,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:31 BoogieIcfgContainer [2022-07-14 14:10:31,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:10:31,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:10:31,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:10:31,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:10:31,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:10:30" (1/3) ... [2022-07-14 14:10:31,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d421bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:31, skipping insertion in model container [2022-07-14 14:10:31,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:31" (2/3) ... [2022-07-14 14:10:31,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d421bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:31, skipping insertion in model container [2022-07-14 14:10:31,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:31" (3/3) ... [2022-07-14 14:10:31,727 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2022-07-14 14:10:31,732 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:10:31,741 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:10:31,741 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-07-14 14:10:31,741 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:10:31,795 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-14 14:10:31,843 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:10:31,860 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 124 transitions, 256 flow [2022-07-14 14:10:31,867 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 124 transitions, 256 flow [2022-07-14 14:10:31,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 124 transitions, 256 flow [2022-07-14 14:10:31,942 INFO L129 PetriNetUnfolder]: 21/163 cut-off events. [2022-07-14 14:10:31,942 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-14 14:10:31,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 163 events. 21/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 410 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 84. Up to 6 conditions per place. [2022-07-14 14:10:31,952 INFO L116 LiptonReduction]: Number of co-enabled transitions 3528 [2022-07-14 14:10:34,300 INFO L131 LiptonReduction]: Checked pairs total: 5168 [2022-07-14 14:10:34,301 INFO L133 LiptonReduction]: Total number of compositions: 119 [2022-07-14 14:10:34,310 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 41 transitions, 90 flow [2022-07-14 14:10:34,335 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 0 states have call successors, (0), 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 14:10:34,354 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:10:34,361 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@47b0973d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fd6a786 [2022-07-14 14:10:34,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-07-14 14:10:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 0 states have call successors, (0), 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 14:10:34,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:10:34,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:34,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:10:34,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:10:34,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash 15176655, now seen corresponding path program 1 times [2022-07-14 14:10:34,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:34,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800314838] [2022-07-14 14:10:34,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:34,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:34,544 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 14:10:34,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800314838] [2022-07-14 14:10:34,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800314838] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:34,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:34,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:34,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495769963] [2022-07-14 14:10:34,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:34,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:34,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:34,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:34,565 INFO L87 Difference]: Start difference. First operand has 209 states, 182 states have (on average 2.7857142857142856) internal successors, (507), 208 states have internal predecessors, (507), 0 states have call successors, (0), 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 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:34,626 INFO L93 Difference]: Finished difference Result 176 states and 332 transitions. [2022-07-14 14:10:34,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:34,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-07-14 14:10:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:34,634 INFO L225 Difference]: With dead ends: 176 [2022-07-14 14:10:34,634 INFO L226 Difference]: Without dead ends: 170 [2022-07-14 14:10:34,635 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 14:10:34,637 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:34,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:10:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-07-14 14:10:34,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-07-14 14:10:34,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 155 states have (on average 2.07741935483871) internal successors, (322), 169 states have internal predecessors, (322), 0 states have call successors, (0), 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 14:10:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 322 transitions. [2022-07-14 14:10:34,669 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 322 transitions. Word has length 4 [2022-07-14 14:10:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:34,669 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 322 transitions. [2022-07-14 14:10:34,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 322 transitions. [2022-07-14 14:10:34,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:10:34,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:34,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:10:34,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:10:34,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:10:34,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1699848634, now seen corresponding path program 1 times [2022-07-14 14:10:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:34,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109843476] [2022-07-14 14:10:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:34,725 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 14:10:34,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:34,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109843476] [2022-07-14 14:10:34,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109843476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:34,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:34,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:34,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515085356] [2022-07-14 14:10:34,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:34,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:34,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:34,728 INFO L87 Difference]: Start difference. First operand 170 states and 322 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:34,774 INFO L93 Difference]: Finished difference Result 192 states and 351 transitions. [2022-07-14 14:10:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:10:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:34,776 INFO L225 Difference]: With dead ends: 192 [2022-07-14 14:10:34,776 INFO L226 Difference]: Without dead ends: 192 [2022-07-14 14:10:34,776 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 14:10:34,777 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:34,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:10:34,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-07-14 14:10:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 168. [2022-07-14 14:10:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 156 states have (on average 2.051282051282051) internal successors, (320), 167 states have internal predecessors, (320), 0 states have call successors, (0), 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 14:10:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 320 transitions. [2022-07-14 14:10:34,801 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 320 transitions. Word has length 6 [2022-07-14 14:10:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:34,801 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 320 transitions. [2022-07-14 14:10:34,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 320 transitions. [2022-07-14 14:10:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:10:34,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:34,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-14 14:10:34,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:10:34,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:10:34,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:34,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1699848619, now seen corresponding path program 1 times [2022-07-14 14:10:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:34,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407928281] [2022-07-14 14:10:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:34,857 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 14:10:34,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:34,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407928281] [2022-07-14 14:10:34,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407928281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:34,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:34,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:34,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376419831] [2022-07-14 14:10:34,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:34,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:34,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:34,861 INFO L87 Difference]: Start difference. First operand 168 states and 320 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:34,905 INFO L93 Difference]: Finished difference Result 180 states and 322 transitions. [2022-07-14 14:10:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:34,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-14 14:10:34,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:34,908 INFO L225 Difference]: With dead ends: 180 [2022-07-14 14:10:34,908 INFO L226 Difference]: Without dead ends: 178 [2022-07-14 14:10:34,909 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 14:10:34,911 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:34,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:10:34,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-07-14 14:10:34,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2022-07-14 14:10:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 145 states have (on average 1.986206896551724) internal successors, (288), 153 states have internal predecessors, (288), 0 states have call successors, (0), 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 14:10:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 288 transitions. [2022-07-14 14:10:34,929 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 288 transitions. Word has length 6 [2022-07-14 14:10:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:34,930 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 288 transitions. [2022-07-14 14:10:34,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 288 transitions. [2022-07-14 14:10:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-14 14:10:34,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:34,931 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-14 14:10:34,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:10:34,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-07-14 14:10:34,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:34,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1699886075, now seen corresponding path program 1 times [2022-07-14 14:10:34,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:34,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013444057] [2022-07-14 14:10:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:34,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:10:34,955 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:10:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:10:34,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:10:34,981 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:10:34,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2022-07-14 14:10:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-07-14 14:10:34,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-07-14 14:10:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-07-14 14:10:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2022-07-14 14:10:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-07-14 14:10:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-07-14 14:10:34,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-07-14 14:10:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-07-14 14:10:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-07-14 14:10:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-07-14 14:10:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-07-14 14:10:34,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-07-14 14:10:34,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 14:10:34,987 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-14 14:10:35,004 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:10:35,004 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-14 14:10:35,015 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-14 14:10:35,017 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:10:35,017 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 162 transitions, 342 flow [2022-07-14 14:10:35,017 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 162 transitions, 342 flow [2022-07-14 14:10:35,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 162 transitions, 342 flow [2022-07-14 14:10:35,044 INFO L129 PetriNetUnfolder]: 37/277 cut-off events. [2022-07-14 14:10:35,044 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-07-14 14:10:35,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 277 events. 37/277 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 835 event pairs, 0 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 165. Up to 9 conditions per place. [2022-07-14 14:10:35,052 INFO L116 LiptonReduction]: Number of co-enabled transitions 11016 [2022-07-14 14:10:37,419 INFO L131 LiptonReduction]: Checked pairs total: 23131 [2022-07-14 14:10:37,420 INFO L133 LiptonReduction]: Total number of compositions: 141 [2022-07-14 14:10:37,421 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 68 transitions, 154 flow [2022-07-14 14:10:37,521 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 0 states have call successors, (0), 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 14:10:37,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:10:37,525 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@47b0973d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fd6a786 [2022-07-14 14:10:37,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-07-14 14:10:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 0 states have call successors, (0), 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 14:10:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:10:37,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:37,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:10:37,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:37,538 INFO L85 PathProgramCache]: Analyzing trace with hash 795388301, now seen corresponding path program 1 times [2022-07-14 14:10:37,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:37,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841309509] [2022-07-14 14:10:37,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:37,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:37,571 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 14:10:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:37,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841309509] [2022-07-14 14:10:37,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841309509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:37,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:37,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406080175] [2022-07-14 14:10:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:37,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:37,585 INFO L87 Difference]: Start difference. First operand has 4254 states, 4087 states have (on average 3.777832150721801) internal successors, (15440), 4253 states have internal predecessors, (15440), 0 states have call successors, (0), 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 14:10:37,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:37,690 INFO L93 Difference]: Finished difference Result 4217 states and 11795 transitions. [2022-07-14 14:10:37,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:37,691 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 14:10:37,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:37,710 INFO L225 Difference]: With dead ends: 4217 [2022-07-14 14:10:37,710 INFO L226 Difference]: Without dead ends: 4191 [2022-07-14 14:10:37,736 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 14:10:37,737 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:37,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:37,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2022-07-14 14:10:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4191. [2022-07-14 14:10:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 4038 states have (on average 2.904655770183259) internal successors, (11729), 4190 states have internal predecessors, (11729), 0 states have call successors, (0), 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 14:10:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 11729 transitions. [2022-07-14 14:10:37,829 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 11729 transitions. Word has length 5 [2022-07-14 14:10:37,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:37,829 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 11729 transitions. [2022-07-14 14:10:37,830 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 14:10:37,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 11729 transitions. [2022-07-14 14:10:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:10:37,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:37,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:37,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 14:10:37,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:37,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:37,832 INFO L85 PathProgramCache]: Analyzing trace with hash -131475993, now seen corresponding path program 1 times [2022-07-14 14:10:37,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:37,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642303740] [2022-07-14 14:10:37,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:37,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:37,872 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 14:10:37,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:37,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642303740] [2022-07-14 14:10:37,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642303740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:37,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:37,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718327731] [2022-07-14 14:10:37,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:37,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:37,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:37,875 INFO L87 Difference]: Start difference. First operand 4191 states and 11729 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:37,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:37,975 INFO L93 Difference]: Finished difference Result 5487 states and 14471 transitions. [2022-07-14 14:10:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:37,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 14:10:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:37,998 INFO L225 Difference]: With dead ends: 5487 [2022-07-14 14:10:37,998 INFO L226 Difference]: Without dead ends: 5487 [2022-07-14 14:10:37,998 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 14:10:38,000 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 38 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:38,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 18 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:38,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5487 states. [2022-07-14 14:10:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5487 to 4814. [2022-07-14 14:10:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4814 states, 4676 states have (on average 2.8434559452523525) internal successors, (13296), 4813 states have internal predecessors, (13296), 0 states have call successors, (0), 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 14:10:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4814 states to 4814 states and 13296 transitions. [2022-07-14 14:10:38,163 INFO L78 Accepts]: Start accepts. Automaton has 4814 states and 13296 transitions. Word has length 7 [2022-07-14 14:10:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:38,164 INFO L495 AbstractCegarLoop]: Abstraction has 4814 states and 13296 transitions. [2022-07-14 14:10:38,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 4814 states and 13296 transitions. [2022-07-14 14:10:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:10:38,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:38,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:38,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:10:38,165 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:38,165 INFO L85 PathProgramCache]: Analyzing trace with hash -131475991, now seen corresponding path program 1 times [2022-07-14 14:10:38,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:38,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447007340] [2022-07-14 14:10:38,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:38,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:38,179 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 14:10:38,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:38,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447007340] [2022-07-14 14:10:38,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447007340] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:38,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:38,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:38,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936467766] [2022-07-14 14:10:38,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:38,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:38,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:38,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:38,182 INFO L87 Difference]: Start difference. First operand 4814 states and 13296 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:38,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:38,271 INFO L93 Difference]: Finished difference Result 5288 states and 13637 transitions. [2022-07-14 14:10:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:38,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 14:10:38,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:38,342 INFO L225 Difference]: With dead ends: 5288 [2022-07-14 14:10:38,343 INFO L226 Difference]: Without dead ends: 5264 [2022-07-14 14:10:38,343 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 14:10:38,343 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 36 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:38,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 18 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2022-07-14 14:10:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 4683. [2022-07-14 14:10:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4683 states, 4570 states have (on average 2.7584245076586433) internal successors, (12606), 4682 states have internal predecessors, (12606), 0 states have call successors, (0), 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 14:10:38,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4683 states to 4683 states and 12606 transitions. [2022-07-14 14:10:38,450 INFO L78 Accepts]: Start accepts. Automaton has 4683 states and 12606 transitions. Word has length 7 [2022-07-14 14:10:38,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:38,450 INFO L495 AbstractCegarLoop]: Abstraction has 4683 states and 12606 transitions. [2022-07-14 14:10:38,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:38,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4683 states and 12606 transitions. [2022-07-14 14:10:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:10:38,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:38,452 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:10:38,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:10:38,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:38,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1808229442, now seen corresponding path program 1 times [2022-07-14 14:10:38,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:38,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410827600] [2022-07-14 14:10:38,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:10:38,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:38,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410827600] [2022-07-14 14:10:38,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410827600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:38,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:38,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:10:38,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640343444] [2022-07-14 14:10:38,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:38,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:38,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:38,485 INFO L87 Difference]: Start difference. First operand 4683 states and 12606 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 14:10:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:38,565 INFO L93 Difference]: Finished difference Result 4443 states and 11926 transitions. [2022-07-14 14:10:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:38,566 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 14:10:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:38,589 INFO L225 Difference]: With dead ends: 4443 [2022-07-14 14:10:38,589 INFO L226 Difference]: Without dead ends: 4443 [2022-07-14 14:10:38,590 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 14:10:38,597 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:38,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 9 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:38,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2022-07-14 14:10:38,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4443. [2022-07-14 14:10:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4443 states, 4347 states have (on average 2.7435012652403956) internal successors, (11926), 4442 states have internal predecessors, (11926), 0 states have call successors, (0), 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 14:10:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4443 states to 4443 states and 11926 transitions. [2022-07-14 14:10:38,763 INFO L78 Accepts]: Start accepts. Automaton has 4443 states and 11926 transitions. Word has length 9 [2022-07-14 14:10:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:38,765 INFO L495 AbstractCegarLoop]: Abstraction has 4443 states and 11926 transitions. [2022-07-14 14:10:38,765 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 14:10:38,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4443 states and 11926 transitions. [2022-07-14 14:10:38,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:10:38,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:38,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:10:38,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 14:10:38,770 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:38,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:38,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1808229441, now seen corresponding path program 1 times [2022-07-14 14:10:38,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:38,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926671548] [2022-07-14 14:10:38,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:38,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:10:38,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:38,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926671548] [2022-07-14 14:10:38,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926671548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:38,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:38,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:10:38,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965781770] [2022-07-14 14:10:38,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:38,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:38,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:38,802 INFO L87 Difference]: Start difference. First operand 4443 states and 11926 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 14:10:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:38,875 INFO L93 Difference]: Finished difference Result 4203 states and 11246 transitions. [2022-07-14 14:10:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:38,876 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 14:10:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:38,892 INFO L225 Difference]: With dead ends: 4203 [2022-07-14 14:10:38,892 INFO L226 Difference]: Without dead ends: 4203 [2022-07-14 14:10:38,893 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 14:10:38,893 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:38,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:38,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4203 states. [2022-07-14 14:10:38,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4203 to 4203. [2022-07-14 14:10:38,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4203 states, 4124 states have (on average 2.7269641125121242) internal successors, (11246), 4202 states have internal predecessors, (11246), 0 states have call successors, (0), 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 14:10:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4203 states to 4203 states and 11246 transitions. [2022-07-14 14:10:39,004 INFO L78 Accepts]: Start accepts. Automaton has 4203 states and 11246 transitions. Word has length 9 [2022-07-14 14:10:39,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:39,005 INFO L495 AbstractCegarLoop]: Abstraction has 4203 states and 11246 transitions. [2022-07-14 14:10:39,005 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 14:10:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4203 states and 11246 transitions. [2022-07-14 14:10:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:10:39,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:39,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:39,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 14:10:39,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:39,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:39,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2092139119, now seen corresponding path program 1 times [2022-07-14 14:10:39,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427321697] [2022-07-14 14:10:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:39,047 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 14:10:39,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:39,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427321697] [2022-07-14 14:10:39,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427321697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:39,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:39,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:10:39,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180288027] [2022-07-14 14:10:39,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:39,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:10:39,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:39,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:10:39,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:10:39,049 INFO L87 Difference]: Start difference. First operand 4203 states and 11246 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 14:10:39,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:39,275 INFO L93 Difference]: Finished difference Result 5260 states and 13545 transitions. [2022-07-14 14:10:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:10:39,276 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 14:10:39,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:39,291 INFO L225 Difference]: With dead ends: 5260 [2022-07-14 14:10:39,291 INFO L226 Difference]: Without dead ends: 5260 [2022-07-14 14:10:39,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:10:39,292 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 165 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:39,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 66 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:10:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5260 states. [2022-07-14 14:10:39,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5260 to 4455. [2022-07-14 14:10:39,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4455 states, 4370 states have (on average 2.748283752860412) internal successors, (12010), 4454 states have internal predecessors, (12010), 0 states have call successors, (0), 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 14:10:39,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 12010 transitions. [2022-07-14 14:10:39,415 INFO L78 Accepts]: Start accepts. Automaton has 4455 states and 12010 transitions. Word has length 11 [2022-07-14 14:10:39,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:39,415 INFO L495 AbstractCegarLoop]: Abstraction has 4455 states and 12010 transitions. [2022-07-14 14:10:39,416 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 14:10:39,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4455 states and 12010 transitions. [2022-07-14 14:10:39,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:10:39,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:39,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:39,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:10:39,417 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:39,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2092139118, now seen corresponding path program 1 times [2022-07-14 14:10:39,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:39,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002056139] [2022-07-14 14:10:39,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:39,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:39,439 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 14:10:39,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:39,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002056139] [2022-07-14 14:10:39,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002056139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:39,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:39,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:10:39,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489697795] [2022-07-14 14:10:39,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:39,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:10:39,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:39,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:10:39,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:10:39,441 INFO L87 Difference]: Start difference. First operand 4455 states and 12010 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 14:10:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:39,649 INFO L93 Difference]: Finished difference Result 4979 states and 12816 transitions. [2022-07-14 14:10:39,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:10:39,651 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 14:10:39,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:39,662 INFO L225 Difference]: With dead ends: 4979 [2022-07-14 14:10:39,662 INFO L226 Difference]: Without dead ends: 4943 [2022-07-14 14:10:39,662 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 14:10:39,663 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 169 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:39,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 48 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 14:10:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-07-14 14:10:39,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4106. [2022-07-14 14:10:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4106 states, 4026 states have (on average 2.7131147540983607) internal successors, (10923), 4105 states have internal predecessors, (10923), 0 states have call successors, (0), 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 14:10:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4106 states to 4106 states and 10923 transitions. [2022-07-14 14:10:39,739 INFO L78 Accepts]: Start accepts. Automaton has 4106 states and 10923 transitions. Word has length 11 [2022-07-14 14:10:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:39,740 INFO L495 AbstractCegarLoop]: Abstraction has 4106 states and 10923 transitions. [2022-07-14 14:10:39,740 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 14:10:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4106 states and 10923 transitions. [2022-07-14 14:10:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:10:39,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:39,741 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-07-14 14:10:39,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 14:10:39,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2022-07-14 14:10:39,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:39,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1753322848, now seen corresponding path program 1 times [2022-07-14 14:10:39,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:39,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549645097] [2022-07-14 14:10:39,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:39,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:10:39,751 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:10:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:10:39,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:10:39,760 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:10:39,760 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-07-14 14:10:39,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2022-07-14 14:10:39,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2022-07-14 14:10:39,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2022-07-14 14:10:39,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2022-07-14 14:10:39,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2022-07-14 14:10:39,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2022-07-14 14:10:39,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2022-07-14 14:10:39,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2022-07-14 14:10:39,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2022-07-14 14:10:39,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2022-07-14 14:10:39,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 14:10:39,764 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:39,764 WARN L231 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:10:39,764 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-07-14 14:10:39,776 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-07-14 14:10:39,777 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:10:39,778 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 200 transitions, 430 flow [2022-07-14 14:10:39,778 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 200 transitions, 430 flow [2022-07-14 14:10:39,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 200 transitions, 430 flow [2022-07-14 14:10:39,850 INFO L129 PetriNetUnfolder]: 58/432 cut-off events. [2022-07-14 14:10:39,851 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-07-14 14:10:39,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 432 events. 58/432 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1493 event pairs, 1 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 285. Up to 16 conditions per place. [2022-07-14 14:10:39,869 INFO L116 LiptonReduction]: Number of co-enabled transitions 20736 [2022-07-14 14:10:42,573 INFO L131 LiptonReduction]: Checked pairs total: 49226 [2022-07-14 14:10:42,573 INFO L133 LiptonReduction]: Total number of compositions: 172 [2022-07-14 14:10:42,574 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 91 transitions, 212 flow [2022-07-14 14:10:44,430 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 0 states have call successors, (0), 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 14:10:44,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:10:44,432 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@47b0973d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fd6a786 [2022-07-14 14:10:44,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-07-14 14:10:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 0 states have call successors, (0), 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 14:10:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 14:10:44,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:44,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 14:10:44,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:10:44,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:44,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1187125962, now seen corresponding path program 1 times [2022-07-14 14:10:44,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:44,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018387303] [2022-07-14 14:10:44,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:44,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:44,574 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 14:10:44,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:44,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018387303] [2022-07-14 14:10:44,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018387303] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:44,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:44,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:44,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089708364] [2022-07-14 14:10:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:44,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:44,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:44,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:44,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:44,700 INFO L87 Difference]: Start difference. First operand has 70158 states, 69201 states have (on average 4.965072759064175) internal successors, (343588), 70157 states have internal predecessors, (343588), 0 states have call successors, (0), 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 14:10:45,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:45,673 INFO L93 Difference]: Finished difference Result 70121 states and 259325 transitions. [2022-07-14 14:10:45,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:45,674 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 14:10:45,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:46,317 INFO L225 Difference]: With dead ends: 70121 [2022-07-14 14:10:46,317 INFO L226 Difference]: Without dead ends: 69995 [2022-07-14 14:10:46,317 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 14:10:46,318 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 15 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:46,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:46,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69995 states. [2022-07-14 14:10:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69995 to 69995. [2022-07-14 14:10:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69995 states, 69056 states have (on average 3.7491166589434664) internal successors, (258899), 69994 states have internal predecessors, (258899), 0 states have call successors, (0), 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 14:10:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69995 states to 69995 states and 258899 transitions. [2022-07-14 14:10:48,996 INFO L78 Accepts]: Start accepts. Automaton has 69995 states and 258899 transitions. Word has length 5 [2022-07-14 14:10:48,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:48,996 INFO L495 AbstractCegarLoop]: Abstraction has 69995 states and 258899 transitions. [2022-07-14 14:10:48,997 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 14:10:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 69995 states and 258899 transitions. [2022-07-14 14:10:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:10:48,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:48,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:10:48,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 14:10:48,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:10:48,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:48,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1626527670, now seen corresponding path program 1 times [2022-07-14 14:10:48,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:48,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044852311] [2022-07-14 14:10:48,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:48,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:49,013 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 14:10:49,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:49,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044852311] [2022-07-14 14:10:49,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044852311] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:49,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:49,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:10:49,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332423217] [2022-07-14 14:10:49,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:49,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:49,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:49,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:49,015 INFO L87 Difference]: Start difference. First operand 69995 states and 258899 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:49,851 INFO L93 Difference]: Finished difference Result 91232 states and 312489 transitions. [2022-07-14 14:10:49,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:49,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 14:10:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:50,611 INFO L225 Difference]: With dead ends: 91232 [2022-07-14 14:10:50,612 INFO L226 Difference]: Without dead ends: 91088 [2022-07-14 14:10:50,612 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 14:10:50,612 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:50,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 18 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91088 states. [2022-07-14 14:10:52,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91088 to 85652. [2022-07-14 14:10:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85652 states, 84761 states have (on average 3.5524356720661623) internal successors, (301108), 85651 states have internal predecessors, (301108), 0 states have call successors, (0), 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 14:10:53,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85652 states to 85652 states and 301108 transitions. [2022-07-14 14:10:53,509 INFO L78 Accepts]: Start accepts. Automaton has 85652 states and 301108 transitions. Word has length 7 [2022-07-14 14:10:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:53,509 INFO L495 AbstractCegarLoop]: Abstraction has 85652 states and 301108 transitions. [2022-07-14 14:10:53,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:10:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 85652 states and 301108 transitions. [2022-07-14 14:10:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:10:53,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:53,510 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:10:53,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 14:10:53,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:10:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1838348919, now seen corresponding path program 1 times [2022-07-14 14:10:53,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:53,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573079334] [2022-07-14 14:10:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:53,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:10:53,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:53,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573079334] [2022-07-14 14:10:53,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573079334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:53,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:53,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:10:53,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931435215] [2022-07-14 14:10:53,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:53,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:53,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:53,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:53,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:53,544 INFO L87 Difference]: Start difference. First operand 85652 states and 301108 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 14:10:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:54,177 INFO L93 Difference]: Finished difference Result 81542 states and 285700 transitions. [2022-07-14 14:10:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:54,177 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 14:10:54,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:55,062 INFO L225 Difference]: With dead ends: 81542 [2022-07-14 14:10:55,062 INFO L226 Difference]: Without dead ends: 81542 [2022-07-14 14:10:55,063 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 14:10:55,071 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 49 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:55,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 18 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:10:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81542 states. [2022-07-14 14:10:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81542 to 81542. [2022-07-14 14:10:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81542 states, 80789 states have (on average 3.536372525962693) internal successors, (285700), 81541 states have internal predecessors, (285700), 0 states have call successors, (0), 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 14:10:57,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81542 states to 81542 states and 285700 transitions. [2022-07-14 14:10:57,551 INFO L78 Accepts]: Start accepts. Automaton has 81542 states and 285700 transitions. Word has length 9 [2022-07-14 14:10:57,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:10:57,552 INFO L495 AbstractCegarLoop]: Abstraction has 81542 states and 285700 transitions. [2022-07-14 14:10:57,552 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 14:10:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand 81542 states and 285700 transitions. [2022-07-14 14:10:57,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 14:10:57,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:10:57,552 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-07-14 14:10:57,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 14:10:57,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:10:57,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:10:57,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1838348918, now seen corresponding path program 1 times [2022-07-14 14:10:57,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:10:57,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668832322] [2022-07-14 14:10:57,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:10:57,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:10:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:10:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:10:57,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:10:57,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668832322] [2022-07-14 14:10:57,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668832322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:10:57,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:10:57,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:10:57,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363964369] [2022-07-14 14:10:57,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:10:57,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:10:57,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:10:57,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:10:57,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:10:57,571 INFO L87 Difference]: Start difference. First operand 81542 states and 285700 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 14:10:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:10:58,036 INFO L93 Difference]: Finished difference Result 77432 states and 270292 transitions. [2022-07-14 14:10:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:10:58,037 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 14:10:58,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:10:58,363 INFO L225 Difference]: With dead ends: 77432 [2022-07-14 14:10:58,363 INFO L226 Difference]: Without dead ends: 77432 [2022-07-14 14:10:58,363 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 14:10:58,364 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:10:58,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 10 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:10:59,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77432 states. [2022-07-14 14:11:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77432 to 77432. [2022-07-14 14:11:00,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77432 states, 76817 states have (on average 3.518648215889712) internal successors, (270292), 77431 states have internal predecessors, (270292), 0 states have call successors, (0), 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 14:11:01,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77432 states to 77432 states and 270292 transitions. [2022-07-14 14:11:01,094 INFO L78 Accepts]: Start accepts. Automaton has 77432 states and 270292 transitions. Word has length 9 [2022-07-14 14:11:01,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:01,094 INFO L495 AbstractCegarLoop]: Abstraction has 77432 states and 270292 transitions. [2022-07-14 14:11:01,094 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 14:11:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 77432 states and 270292 transitions. [2022-07-14 14:11:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:11:01,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:01,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:01,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 14:11:01,095 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2085672576, now seen corresponding path program 1 times [2022-07-14 14:11:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:01,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986566257] [2022-07-14 14:11:01,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:01,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:01,133 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 14:11:01,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:01,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986566257] [2022-07-14 14:11:01,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986566257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:01,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:01,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:11:01,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189461766] [2022-07-14 14:11:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:01,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:11:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:01,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:11:01,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:01,136 INFO L87 Difference]: Start difference. First operand 77432 states and 270292 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 14:11:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:02,512 INFO L93 Difference]: Finished difference Result 104989 states and 350582 transitions. [2022-07-14 14:11:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:11:02,513 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 14:11:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:02,962 INFO L225 Difference]: With dead ends: 104989 [2022-07-14 14:11:02,963 INFO L226 Difference]: Without dead ends: 104989 [2022-07-14 14:11:02,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:11:02,963 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 169 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:02,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 93 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:11:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104989 states. [2022-07-14 14:11:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104989 to 95943. [2022-07-14 14:11:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95943 states, 95252 states have (on average 3.486582958888002) internal successors, (332104), 95942 states have internal predecessors, (332104), 0 states have call successors, (0), 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 14:11:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95943 states to 95943 states and 332104 transitions. [2022-07-14 14:11:06,217 INFO L78 Accepts]: Start accepts. Automaton has 95943 states and 332104 transitions. Word has length 11 [2022-07-14 14:11:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:06,217 INFO L495 AbstractCegarLoop]: Abstraction has 95943 states and 332104 transitions. [2022-07-14 14:11:06,217 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 14:11:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 95943 states and 332104 transitions. [2022-07-14 14:11:06,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 14:11:06,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:06,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:06,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 14:11:06,218 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:06,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:06,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2085672654, now seen corresponding path program 1 times [2022-07-14 14:11:06,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:06,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190941542] [2022-07-14 14:11:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:06,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:11:06,248 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 14:11:06,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:11:06,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190941542] [2022-07-14 14:11:06,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190941542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:11:06,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:11:06,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:11:06,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134526706] [2022-07-14 14:11:06,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:11:06,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:11:06,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:11:06,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:11:06,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:11:06,250 INFO L87 Difference]: Start difference. First operand 95943 states and 332104 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 14:11:07,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:11:07,710 INFO L93 Difference]: Finished difference Result 110133 states and 359857 transitions. [2022-07-14 14:11:07,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 14:11:07,710 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 14:11:07,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:11:08,170 INFO L225 Difference]: With dead ends: 110133 [2022-07-14 14:11:08,170 INFO L226 Difference]: Without dead ends: 109989 [2022-07-14 14:11:08,170 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 14:11:08,171 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 203 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 14:11:08,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 60 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 14:11:08,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109989 states. [2022-07-14 14:11:10,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109989 to 95353. [2022-07-14 14:11:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95353 states, 94740 states have (on average 3.417658855815917) internal successors, (323789), 95352 states have internal predecessors, (323789), 0 states have call successors, (0), 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 14:11:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95353 states to 95353 states and 323789 transitions. [2022-07-14 14:11:11,406 INFO L78 Accepts]: Start accepts. Automaton has 95353 states and 323789 transitions. Word has length 11 [2022-07-14 14:11:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:11:11,406 INFO L495 AbstractCegarLoop]: Abstraction has 95353 states and 323789 transitions. [2022-07-14 14:11:11,406 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 14:11:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 95353 states and 323789 transitions. [2022-07-14 14:11:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 14:11:11,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:11:11,412 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-07-14 14:11:11,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-14 14:11:11,413 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-07-14 14:11:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:11:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash -110471740, now seen corresponding path program 1 times [2022-07-14 14:11:11,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:11:11,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261135217] [2022-07-14 14:11:11,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:11:11,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:11:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:11,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 14:11:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 14:11:11,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 14:11:11,432 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 14:11:11,432 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-07-14 14:11:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-07-14 14:11:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-07-14 14:11:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-07-14 14:11:11,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-07-14 14:11:11,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 14:11:11,436 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:11:11,436 WARN L231 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-14 14:11:11,436 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-07-14 14:11:11,454 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-14 14:11:11,456 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:11:11,456 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 238 transitions, 520 flow [2022-07-14 14:11:11,456 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 238 transitions, 520 flow [2022-07-14 14:11:11,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 212 places, 238 transitions, 520 flow [2022-07-14 14:11:11,513 INFO L129 PetriNetUnfolder]: 91/671 cut-off events. [2022-07-14 14:11:11,513 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-07-14 14:11:11,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 671 events. 91/671 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2673 event pairs, 6 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 452. Up to 32 conditions per place. [2022-07-14 14:11:11,540 INFO L116 LiptonReduction]: Number of co-enabled transitions 33264 [2022-07-14 14:11:15,040 INFO L131 LiptonReduction]: Checked pairs total: 82161 [2022-07-14 14:11:15,040 INFO L133 LiptonReduction]: Total number of compositions: 200 [2022-07-14 14:11:15,041 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 114 transitions, 272 flow