./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:34:43,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:34:43,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:34:43,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:34:43,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:34:43,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:34:43,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:34:43,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:34:43,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:34:43,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:34:43,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:34:43,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:34:43,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:34:43,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:34:43,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:34:43,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:34:43,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:34:43,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:34:43,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:34:43,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:34:43,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:34:43,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:34:43,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:34:43,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:34:43,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:34:43,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:34:43,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:34:43,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:34:43,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:34:43,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:34:43,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:34:43,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:34:43,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:34:43,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:34:43,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:34:43,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:34:43,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:34:43,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:34:43,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:34:43,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:34:43,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:34:43,136 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:34:43,165 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:34:43,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:34:43,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:34:43,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:34:43,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:34:43,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:34:43,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:34:43,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:34:43,169 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:34:43,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:34:43,170 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:34:43,170 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:34:43,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:34:43,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:34:43,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:34:43,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:34:43,172 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:34:43,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:34:43,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:34:43,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:34:43,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:34:43,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:43,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:34:43,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:34:43,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:34:43,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:34:43,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:34:43,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:34:43,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:34:43,174 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:34:43,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:34:43,175 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:34:43,175 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:34:43,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:34:43,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:34:43,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:34:43,480 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:34:43,482 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:34:43,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-08-30 09:34:44,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:34:44,938 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:34:44,939 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_02-idx_nr.i [2023-08-30 09:34:44,950 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e6fa19d/95fbcb0f0b674345a21c7dfc0c05c707/FLAGc6335cad6 [2023-08-30 09:34:44,963 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e6fa19d/95fbcb0f0b674345a21c7dfc0c05c707 [2023-08-30 09:34:44,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:34:44,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:34:44,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:44,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:34:44,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:34:44,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:44" (1/1) ... [2023-08-30 09:34:44,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67cbc25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:44, skipping insertion in model container [2023-08-30 09:34:44,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:34:44" (1/1) ... [2023-08-30 09:34:44,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:34:45,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:34:45,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:45,345 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:34:45,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:34:45,441 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:34:45,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45 WrapperNode [2023-08-30 09:34:45,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:34:45,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:45,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:34:45,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:34:45,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,471 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-08-30 09:34:45,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:34:45,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:34:45,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:34:45,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:34:45,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:34:45,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:34:45,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:34:45,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:34:45,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (1/1) ... [2023-08-30 09:34:45,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:34:45,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:34:45,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:34:45,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:34:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:34:45,556 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:34:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:34:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:34:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:34:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:34:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:34:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:34:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:34:45,559 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:34:45,725 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:34:45,727 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:34:45,860 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:34:45,865 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:34:45,866 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-30 09:34:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45 BoogieIcfgContainer [2023-08-30 09:34:45,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:34:45,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:34:45,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:34:45,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:34:45,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:34:44" (1/3) ... [2023-08-30 09:34:45,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8d2813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:45, skipping insertion in model container [2023-08-30 09:34:45,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:34:45" (2/3) ... [2023-08-30 09:34:45,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8d2813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:34:45, skipping insertion in model container [2023-08-30 09:34:45,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45" (3/3) ... [2023-08-30 09:34:45,874 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2023-08-30 09:34:45,880 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:34:45,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:34:45,887 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 09:34:45,887 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:34:45,929 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:34:45,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 119 flow [2023-08-30 09:34:45,980 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-08-30 09:34:45,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:45,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-08-30 09:34:45,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 57 transitions, 119 flow [2023-08-30 09:34:45,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 56 transitions, 115 flow [2023-08-30 09:34:45,989 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:34:46,002 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 56 transitions, 115 flow [2023-08-30 09:34:46,010 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 56 transitions, 115 flow [2023-08-30 09:34:46,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 115 flow [2023-08-30 09:34:46,021 INFO L130 PetriNetUnfolder]: 2/56 cut-off events. [2023-08-30 09:34:46,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:46,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 2/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-08-30 09:34:46,022 INFO L119 LiptonReduction]: Number of co-enabled transitions 442 [2023-08-30 09:34:47,176 INFO L134 LiptonReduction]: Checked pairs total: 859 [2023-08-30 09:34:47,176 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-30 09:34:47,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:34:47,202 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11d3a0e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:34:47,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-30 09:34:47,205 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 09:34:47,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:47,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:47,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 09:34:47,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:47,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:47,215 INFO L85 PathProgramCache]: Analyzing trace with hash 6908, now seen corresponding path program 1 times [2023-08-30 09:34:47,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:47,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590132402] [2023-08-30 09:34:47,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:47,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:47,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590132402] [2023-08-30 09:34:47,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590132402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:47,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:47,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:47,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837438533] [2023-08-30 09:34:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:47,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:47,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:47,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:47,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:47,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-30 09:34:47,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:47,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-30 09:34:47,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:47,516 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-08-30 09:34:47,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:47,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-08-30 09:34:47,518 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-30 09:34:47,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-08-30 09:34:47,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2023-08-30 09:34:47,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5451713395638629 [2023-08-30 09:34:47,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2023-08-30 09:34:47,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2023-08-30 09:34:47,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:47,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2023-08-30 09:34:47,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,540 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 175 transitions. [2023-08-30 09:34:47,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-08-30 09:34:47,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:47,544 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-08-30 09:34:47,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 09:34:47,548 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 09:34:47,548 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-08-30 09:34:47,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:47,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:34:47,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:34:47,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:47,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:47,550 INFO L85 PathProgramCache]: Analyzing trace with hash 214515, now seen corresponding path program 1 times [2023-08-30 09:34:47,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:47,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450707661] [2023-08-30 09:34:47,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:47,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:47,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:47,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450707661] [2023-08-30 09:34:47,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450707661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:47,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:47,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 09:34:47,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215807336] [2023-08-30 09:34:47,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:47,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:47,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:47,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:47,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:47,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2023-08-30 09:34:47,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:47,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2023-08-30 09:34:47,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:47,634 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-08-30 09:34:47,634 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:47,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2023-08-30 09:34:47,635 INFO L137 encePairwiseOnDemand]: 105/107 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-08-30 09:34:47,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 80 flow [2023-08-30 09:34:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:47,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2023-08-30 09:34:47,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5295950155763239 [2023-08-30 09:34:47,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 170 transitions. [2023-08-30 09:34:47,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 170 transitions. [2023-08-30 09:34:47,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:47,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 170 transitions. [2023-08-30 09:34:47,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,641 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 3 states and 170 transitions. [2023-08-30 09:34:47,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 80 flow [2023-08-30 09:34:47,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:47,642 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 44 flow [2023-08-30 09:34:47,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2023-08-30 09:34:47,643 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 09:34:47,643 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 44 flow [2023-08-30 09:34:47,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:47,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:34:47,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:34:47,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:47,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2095756518, now seen corresponding path program 1 times [2023-08-30 09:34:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728165852] [2023-08-30 09:34:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:47,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:47,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728165852] [2023-08-30 09:34:47,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728165852] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:34:47,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679831468] [2023-08-30 09:34:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:47,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:34:47,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:34:47,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:34:47,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:34:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:47,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:34:47,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:34:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:47,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:34:47,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:47,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679831468] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:34:47,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:34:47,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:34:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068305219] [2023-08-30 09:34:47,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:34:47,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:34:47,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:47,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:34:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:34:47,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-08-30 09:34:47,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:47,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-08-30 09:34:47,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:47,906 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-08-30 09:34:47,906 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:34:47,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 281 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 189. Up to 89 conditions per place. [2023-08-30 09:34:47,907 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-30 09:34:47,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 96 flow [2023-08-30 09:34:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 323 transitions. [2023-08-30 09:34:47,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5031152647975078 [2023-08-30 09:34:47,910 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 323 transitions. [2023-08-30 09:34:47,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 323 transitions. [2023-08-30 09:34:47,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:47,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 323 transitions. [2023-08-30 09:34:47,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,914 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,914 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 44 flow. Second operand 6 states and 323 transitions. [2023-08-30 09:34:47,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 96 flow [2023-08-30 09:34:47,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:47,915 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-08-30 09:34:47,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 09:34:47,916 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-08-30 09:34:47,916 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-08-30 09:34:47,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.57142857142857) internal successors, (361), 7 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:47,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:47,917 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:34:47,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:34:48,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:34:48,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:48,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736701, now seen corresponding path program 2 times [2023-08-30 09:34:48,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341503719] [2023-08-30 09:34:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:34:48,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341503719] [2023-08-30 09:34:48,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341503719] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:48,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296032513] [2023-08-30 09:34:48,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:48,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:48,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-08-30 09:34:48,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-08-30 09:34:48,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,255 INFO L130 PetriNetUnfolder]: 26/76 cut-off events. [2023-08-30 09:34:48,255 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:34:48,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 76 events. 26/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 226 event pairs, 13 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 39 conditions per place. [2023-08-30 09:34:48,256 INFO L137 encePairwiseOnDemand]: 100/107 looper letters, 21 selfloop transitions, 5 changer transitions 4/30 dead transitions. [2023-08-30 09:34:48,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 159 flow [2023-08-30 09:34:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2023-08-30 09:34:48,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.573208722741433 [2023-08-30 09:34:48,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 184 transitions. [2023-08-30 09:34:48,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 184 transitions. [2023-08-30 09:34:48,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 184 transitions. [2023-08-30 09:34:48,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,261 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 184 transitions. [2023-08-30 09:34:48,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 159 flow [2023-08-30 09:34:48,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 145 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:48,263 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 97 flow [2023-08-30 09:34:48,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2023-08-30 09:34:48,263 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 09:34:48,264 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 97 flow [2023-08-30 09:34:48,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,264 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 09:34:48,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:48,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2103736711, now seen corresponding path program 1 times [2023-08-30 09:34:48,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426387365] [2023-08-30 09:34:48,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:34:48,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426387365] [2023-08-30 09:34:48,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426387365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:34:48,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107852387] [2023-08-30 09:34:48,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:48,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:48,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 107 [2023-08-30 09:34:48,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 107 [2023-08-30 09:34:48,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,412 INFO L130 PetriNetUnfolder]: 17/52 cut-off events. [2023-08-30 09:34:48,412 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-30 09:34:48,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 52 events. 17/52 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 8 based on Foata normal form. 6/58 useless extension candidates. Maximal degree in co-relation 138. Up to 33 conditions per place. [2023-08-30 09:34:48,414 INFO L137 encePairwiseOnDemand]: 102/107 looper letters, 19 selfloop transitions, 3 changer transitions 2/24 dead transitions. [2023-08-30 09:34:48,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 145 flow [2023-08-30 09:34:48,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:48,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2023-08-30 09:34:48,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5545171339563862 [2023-08-30 09:34:48,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2023-08-30 09:34:48,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2023-08-30 09:34:48,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2023-08-30 09:34:48,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,422 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,422 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 97 flow. Second operand 3 states and 178 transitions. [2023-08-30 09:34:48,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 145 flow [2023-08-30 09:34:48,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:34:48,426 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-08-30 09:34:48,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-30 09:34:48,428 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 09:34:48,429 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-08-30 09:34:48,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,430 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 09:34:48,432 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:48,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,432 INFO L85 PathProgramCache]: Analyzing trace with hash 256994795, now seen corresponding path program 1 times [2023-08-30 09:34:48,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680804102] [2023-08-30 09:34:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:34:48,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680804102] [2023-08-30 09:34:48,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680804102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:48,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:48,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:48,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025208486] [2023-08-30 09:34:48,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:34:48,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:34:48,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:34:48,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2023-08-30 09:34:48,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2023-08-30 09:34:48,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,601 INFO L130 PetriNetUnfolder]: 1/24 cut-off events. [2023-08-30 09:34:48,601 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-30 09:34:48,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 24 events. 1/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 66. Up to 14 conditions per place. [2023-08-30 09:34:48,603 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 16 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2023-08-30 09:34:48,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 125 flow [2023-08-30 09:34:48,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:34:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:34:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2023-08-30 09:34:48,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.514018691588785 [2023-08-30 09:34:48,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 165 transitions. [2023-08-30 09:34:48,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 165 transitions. [2023-08-30 09:34:48,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 165 transitions. [2023-08-30 09:34:48,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,608 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 3 states and 165 transitions. [2023-08-30 09:34:48,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 125 flow [2023-08-30 09:34:48,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:34:48,611 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2023-08-30 09:34:48,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2023-08-30 09:34:48,613 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2023-08-30 09:34:48,613 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2023-08-30 09:34:48,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,614 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:34:48,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:48,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:48,618 INFO L85 PathProgramCache]: Analyzing trace with hash -601319423, now seen corresponding path program 1 times [2023-08-30 09:34:48,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:48,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721534066] [2023-08-30 09:34:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:48,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721534066] [2023-08-30 09:34:48,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721534066] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:34:48,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165737710] [2023-08-30 09:34:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:48,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:34:48,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:34:48,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 09:34:48,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:34:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:48,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 09:34:48,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:34:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:34:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:34:48,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165737710] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:34:48,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:34:48,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-30 09:34:48,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565794530] [2023-08-30 09:34:48,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:34:48,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 09:34:48,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:48,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 09:34:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-30 09:34:48,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2023-08-30 09:34:48,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:48,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2023-08-30 09:34:48,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:48,955 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2023-08-30 09:34:48,955 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2023-08-30 09:34:48,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 1/30 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 92. Up to 21 conditions per place. [2023-08-30 09:34:48,955 INFO L137 encePairwiseOnDemand]: 104/107 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-08-30 09:34:48,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 173 flow [2023-08-30 09:34:48,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:34:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:34:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 632 transitions. [2023-08-30 09:34:48,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49221183800623053 [2023-08-30 09:34:48,958 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 632 transitions. [2023-08-30 09:34:48,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 632 transitions. [2023-08-30 09:34:48,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:48,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 632 transitions. [2023-08-30 09:34:48,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 52.666666666666664) internal successors, (632), 12 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,962 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 107.0) internal successors, (1391), 13 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,962 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 12 states and 632 transitions. [2023-08-30 09:34:48,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 173 flow [2023-08-30 09:34:48,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:34:48,966 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 165 flow [2023-08-30 09:34:48,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2023-08-30 09:34:48,967 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-08-30 09:34:48,967 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 165 flow [2023-08-30 09:34:48,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 51.61538461538461) internal successors, (671), 13 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:48,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:48,968 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:48,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:34:49,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-08-30 09:34:49,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:49,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash 649461601, now seen corresponding path program 2 times [2023-08-30 09:34:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:49,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395042053] [2023-08-30 09:34:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:49,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:34:49,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:49,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395042053] [2023-08-30 09:34:49,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395042053] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:49,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:49,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:49,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348515341] [2023-08-30 09:34:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:49,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:49,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:49,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:49,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-08-30 09:34:49,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-08-30 09:34:49,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,328 INFO L130 PetriNetUnfolder]: 1/29 cut-off events. [2023-08-30 09:34:49,329 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-30 09:34:49,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 29 events. 1/29 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 108. Up to 17 conditions per place. [2023-08-30 09:34:49,329 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 22 selfloop transitions, 5 changer transitions 2/29 dead transitions. [2023-08-30 09:34:49,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 29 transitions, 229 flow [2023-08-30 09:34:49,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:34:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:34:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2023-08-30 09:34:49,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.470404984423676 [2023-08-30 09:34:49,331 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 302 transitions. [2023-08-30 09:34:49,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.333333333333336) internal successors, (302), 6 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 107.0) internal successors, (749), 7 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,334 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 165 flow. Second operand 6 states and 302 transitions. [2023-08-30 09:34:49,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 29 transitions, 229 flow [2023-08-30 09:34:49,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 29 transitions, 181 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-30 09:34:49,336 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 123 flow [2023-08-30 09:34:49,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2023-08-30 09:34:49,337 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 26 predicate places. [2023-08-30 09:34:49,337 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 123 flow [2023-08-30 09:34:49,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:49,338 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 09:34:49,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:49,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash 649461608, now seen corresponding path program 1 times [2023-08-30 09:34:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:49,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580243762] [2023-08-30 09:34:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:49,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:34:49,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:49,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580243762] [2023-08-30 09:34:49,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580243762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:49,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:49,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550939660] [2023-08-30 09:34:49,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:49,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:49,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:49,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:49,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 107 [2023-08-30 09:34:49,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 107 [2023-08-30 09:34:49,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,465 INFO L130 PetriNetUnfolder]: 1/27 cut-off events. [2023-08-30 09:34:49,465 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-30 09:34:49,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 27 events. 1/27 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 85. Up to 17 conditions per place. [2023-08-30 09:34:49,465 INFO L137 encePairwiseOnDemand]: 101/107 looper letters, 18 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2023-08-30 09:34:49,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 182 flow [2023-08-30 09:34:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:34:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:34:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2023-08-30 09:34:49,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47289719626168225 [2023-08-30 09:34:49,467 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 253 transitions. [2023-08-30 09:34:49,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 253 transitions. [2023-08-30 09:34:49,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 253 transitions. [2023-08-30 09:34:49,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.6) internal successors, (253), 5 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,470 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,470 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 123 flow. Second operand 5 states and 253 transitions. [2023-08-30 09:34:49,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 182 flow [2023-08-30 09:34:49,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 27 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:34:49,471 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 111 flow [2023-08-30 09:34:49,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2023-08-30 09:34:49,472 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-08-30 09:34:49,472 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 111 flow [2023-08-30 09:34:49,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 49.0) internal successors, (245), 5 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:49,473 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 09:34:49,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:49,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:49,473 INFO L85 PathProgramCache]: Analyzing trace with hash -257412939, now seen corresponding path program 1 times [2023-08-30 09:34:49,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:49,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674759663] [2023-08-30 09:34:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:49,559 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:34:49,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:49,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674759663] [2023-08-30 09:34:49,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674759663] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:49,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:49,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413874022] [2023-08-30 09:34:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:49,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:49,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-08-30 09:34:49,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-08-30 09:34:49,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,602 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-08-30 09:34:49,602 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2023-08-30 09:34:49,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 21 events. 1/21 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 69. Up to 16 conditions per place. [2023-08-30 09:34:49,602 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 17 selfloop transitions, 3 changer transitions 1/21 dead transitions. [2023-08-30 09:34:49,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 21 transitions, 150 flow [2023-08-30 09:34:49,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:34:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:34:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2023-08-30 09:34:49,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102803738317756 [2023-08-30 09:34:49,604 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2023-08-30 09:34:49,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2023-08-30 09:34:49,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2023-08-30 09:34:49,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.4) internal successors, (252), 5 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,607 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,607 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 111 flow. Second operand 5 states and 252 transitions. [2023-08-30 09:34:49,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 21 transitions, 150 flow [2023-08-30 09:34:49,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 21 transitions, 141 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:34:49,609 INFO L231 Difference]: Finished difference. Result has 41 places, 20 transitions, 102 flow [2023-08-30 09:34:49,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2023-08-30 09:34:49,610 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-08-30 09:34:49,610 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 20 transitions, 102 flow [2023-08-30 09:34:49,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:34:49,611 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 09:34:49,611 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:34:49,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:34:49,611 INFO L85 PathProgramCache]: Analyzing trace with hash -257412929, now seen corresponding path program 1 times [2023-08-30 09:34:49,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:34:49,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675774842] [2023-08-30 09:34:49,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:34:49,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:34:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:34:49,691 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:34:49,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:34:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675774842] [2023-08-30 09:34:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675774842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:34:49,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:34:49,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 09:34:49,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614312425] [2023-08-30 09:34:49,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:34:49,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:34:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:34:49,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:34:49,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:34:49,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2023-08-30 09:34:49,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 20 transitions, 102 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:34:49,707 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2023-08-30 09:34:49,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:34:49,735 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-08-30 09:34:49,735 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-30 09:34:49,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 20 events. 1/20 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 66. Up to 16 conditions per place. [2023-08-30 09:34:49,735 INFO L137 encePairwiseOnDemand]: 103/107 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-30 09:34:49,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 141 flow [2023-08-30 09:34:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 09:34:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 09:34:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 251 transitions. [2023-08-30 09:34:49,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691588785046729 [2023-08-30 09:34:49,737 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 251 transitions. [2023-08-30 09:34:49,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 251 transitions. [2023-08-30 09:34:49,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:34:49,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 251 transitions. [2023-08-30 09:34:49,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.2) internal successors, (251), 5 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,739 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,739 INFO L175 Difference]: Start difference. First operand has 41 places, 20 transitions, 102 flow. Second operand 5 states and 251 transitions. [2023-08-30 09:34:49,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 141 flow [2023-08-30 09:34:49,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 20 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 09:34:49,741 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-08-30 09:34:49,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-08-30 09:34:49,741 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 18 predicate places. [2023-08-30 09:34:49,741 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-08-30 09:34:49,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:34:49,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-08-30 09:34:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-08-30 09:34:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-08-30 09:34:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-08-30 09:34:49,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 09:34:49,746 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:34:49,750 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:34:49,750 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:34:49,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:34:49 BasicIcfg [2023-08-30 09:34:49,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:34:49,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:34:49,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:34:49,755 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:34:49,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:34:45" (3/4) ... [2023-08-30 09:34:49,757 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:34:49,762 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:34:49,766 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 09:34:49,766 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 09:34:49,766 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:34:49,795 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:34:49,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:34:49,796 INFO L158 Benchmark]: Toolchain (without parser) took 4830.52ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 41.7MB in the beginning and 65.8MB in the end (delta: -24.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,796 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 50.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:34:49,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.84ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 38.0MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.25ms. Allocated memory is still 65.0MB. Free memory was 38.0MB in the beginning and 36.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,799 INFO L158 Benchmark]: Boogie Preprocessor took 19.40ms. Allocated memory is still 65.0MB. Free memory was 36.0MB in the beginning and 34.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:34:49,799 INFO L158 Benchmark]: RCFGBuilder took 375.68ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 38.7MB in the end (delta: -4.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,800 INFO L158 Benchmark]: TraceAbstraction took 3885.18ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 38.1MB in the beginning and 67.9MB in the end (delta: -29.8MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,800 INFO L158 Benchmark]: Witness Printer took 41.20ms. Allocated memory is still 96.5MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:34:49,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 50.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.84ms. Allocated memory is still 65.0MB. Free memory was 41.5MB in the beginning and 38.0MB in the end (delta: 3.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.25ms. Allocated memory is still 65.0MB. Free memory was 38.0MB in the beginning and 36.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.40ms. Allocated memory is still 65.0MB. Free memory was 36.0MB in the beginning and 34.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.68ms. Allocated memory is still 65.0MB. Free memory was 34.6MB in the beginning and 38.7MB in the end (delta: -4.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3885.18ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 38.1MB in the beginning and 67.9MB in the end (delta: -29.8MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 41.20ms. Allocated memory is still 96.5MB. Free memory was 67.9MB in the beginning and 65.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 58 PlacesBefore, 21 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 442 CoEnabledTransitionPairs, 4 FixpointIterations, 21 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 50 TotalNumberOfCompositions, 859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 619, independent: 547, independent conditional: 0, independent unconditional: 547, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 289, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 619, independent: 281, independent conditional: 0, independent unconditional: 281, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 289, unknown conditional: 0, unknown unconditional: 289] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 71 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 584 IncrementalHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 18 mSDtfsCounter, 584 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=7, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 251/284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:34:49,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE