./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/06-symbeq_08-tricky_address3.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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:12:19,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:12:19,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:12:19,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:12:19,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:12:19,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:12:19,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:12:19,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:12:19,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:12:19,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:12:19,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:12:19,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:12:19,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:12:19,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:12:19,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:12:19,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:12:19,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:12:19,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:12:19,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:12:19,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:12:19,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:12:19,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:12:19,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:12:19,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:12:19,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:12:19,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:12:19,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:12:19,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:12:19,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:12:19,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:12:19,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:12:19,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:12:19,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:12:19,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:12:19,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:12:19,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:12:19,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:12:19,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:12:19,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:12:19,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:12:19,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:12:19,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:12:20,006 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:12:20,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:12:20,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:12:20,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:12:20,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:12:20,009 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:12:20,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:12:20,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:12:20,010 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:12:20,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:12:20,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:12:20,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:12:20,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:12:20,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:12:20,012 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:12:20,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:12:20,013 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:12:20,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:12:20,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:12:20,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:12:20,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:12:20,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:12:20,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:12:20,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:12:20,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:12:20,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:12:20,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:12:20,015 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:12:20,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:12:20,015 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:12:20,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:12:20,016 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:12:20,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:12:20,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:12:20,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:12:20,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:12:20,346 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:12:20,347 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:12:20,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i [2023-09-01 06:12:21,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:12:21,849 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:12:21,850 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_08-tricky_address3.i [2023-09-01 06:12:21,862 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4d3ed8cc/515dc547e54a4244955438bd395f7f72/FLAGf55e73e10 [2023-09-01 06:12:21,877 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4d3ed8cc/515dc547e54a4244955438bd395f7f72 [2023-09-01 06:12:21,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:12:21,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:12:21,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:12:21,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:12:21,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:12:21,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:12:21" (1/1) ... [2023-09-01 06:12:21,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30eb1ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:21, skipping insertion in model container [2023-09-01 06:12:21,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:12:21" (1/1) ... [2023-09-01 06:12:21,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:12:21,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:12:22,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:12:22,271 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:12:22,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:12:22,446 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:12:22,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22 WrapperNode [2023-09-01 06:12:22,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:12:22,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:12:22,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:12:22,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:12:22,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,508 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2023-09-01 06:12:22,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:12:22,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:12:22,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:12:22,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:12:22,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:12:22,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:12:22,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:12:22,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:12:22,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (1/1) ... [2023-09-01 06:12:22,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:12:22,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:22,599 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) [2023-09-01 06:12:22,624 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 [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:12:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:12:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:12:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:12:22,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:12:22,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:12:22,645 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:12:22,800 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:12:22,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:12:23,000 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:12:23,006 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:12:23,006 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-09-01 06:12:23,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:23 BoogieIcfgContainer [2023-09-01 06:12:23,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:12:23,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:12:23,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:12:23,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:12:23,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:12:21" (1/3) ... [2023-09-01 06:12:23,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:12:23, skipping insertion in model container [2023-09-01 06:12:23,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:12:22" (2/3) ... [2023-09-01 06:12:23,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568110f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:12:23, skipping insertion in model container [2023-09-01 06:12:23,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:23" (3/3) ... [2023-09-01 06:12:23,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2023-09-01 06:12:23,028 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:12:23,037 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:12:23,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 06:12:23,037 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:12:23,119 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:12:23,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 183 flow [2023-09-01 06:12:23,216 INFO L130 PetriNetUnfolder]: 4/88 cut-off events. [2023-09-01 06:12:23,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:23,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 4/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-09-01 06:12:23,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 89 transitions, 183 flow [2023-09-01 06:12:23,229 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2023-09-01 06:12:23,233 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:12:23,247 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions, 179 flow [2023-09-01 06:12:23,251 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 88 transitions, 179 flow [2023-09-01 06:12:23,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 179 flow [2023-09-01 06:12:23,282 INFO L130 PetriNetUnfolder]: 4/88 cut-off events. [2023-09-01 06:12:23,285 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:23,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 4/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-09-01 06:12:23,287 INFO L119 LiptonReduction]: Number of co-enabled transitions 1254 [2023-09-01 06:12:25,550 INFO L134 LiptonReduction]: Checked pairs total: 1750 [2023-09-01 06:12:25,550 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-09-01 06:12:25,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:12:25,567 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;@6cedc403, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:12:25,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-09-01 06:12:25,570 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-09-01 06:12:25,570 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:25,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:25,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-09-01 06:12:25,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:25,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:25,575 INFO L85 PathProgramCache]: Analyzing trace with hash 11112, now seen corresponding path program 1 times [2023-09-01 06:12:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:25,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051811242] [2023-09-01 06:12:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:25,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:25,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051811242] [2023-09-01 06:12:25,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051811242] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:25,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:25,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:12:25,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140568674] [2023-09-01 06:12:25,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:25,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:12:25,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:12:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:12:25,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-09-01 06:12:25,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 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) [2023-09-01 06:12:25,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:25,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-09-01 06:12:25,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:25,868 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-09-01 06:12:25,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:25,869 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 284 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. [2023-09-01 06:12:25,870 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-09-01 06:12:25,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-09-01 06:12:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:12:25,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:12:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-09-01 06:12:25,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4708994708994709 [2023-09-01 06:12:25,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-09-01 06:12:25,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-09-01 06:12:25,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:25,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-09-01 06:12:25,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:25,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:25,905 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:25,906 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 267 transitions. [2023-09-01 06:12:25,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-09-01 06:12:25,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:25,910 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-09-01 06:12:25,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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} [2023-09-01 06:12:25,917 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-09-01 06:12:25,917 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-09-01 06:12:25,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 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) [2023-09-01 06:12:25,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:25,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:12:25,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:12:25,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:25,926 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:25,926 INFO L85 PathProgramCache]: Analyzing trace with hash 345664, now seen corresponding path program 1 times [2023-09-01 06:12:25,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:25,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033371728] [2023-09-01 06:12:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:25,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:25,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:25,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033371728] [2023-09-01 06:12:25,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033371728] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:25,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:25,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 06:12:25,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564098631] [2023-09-01 06:12:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:25,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:12:25,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:25,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:12:25,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:12:25,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2023-09-01 06:12:25,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:25,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:25,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2023-09-01 06:12:25,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:26,023 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-09-01 06:12:26,024 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:26,024 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 282 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. [2023-09-01 06:12:26,025 INFO L137 encePairwiseOnDemand]: 187/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2023-09-01 06:12:26,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 17 transitions, 80 flow [2023-09-01 06:12:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:12:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:12:26,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2023-09-01 06:12:26,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4585537918871252 [2023-09-01 06:12:26,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 260 transitions. [2023-09-01 06:12:26,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 260 transitions. [2023-09-01 06:12:26,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:26,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 260 transitions. [2023-09-01 06:12:26,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,030 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 3 states and 260 transitions. [2023-09-01 06:12:26,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 17 transitions, 80 flow [2023-09-01 06:12:26,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:26,031 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 44 flow [2023-09-01 06:12:26,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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} [2023-09-01 06:12:26,032 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2023-09-01 06:12:26,033 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 44 flow [2023-09-01 06:12:26,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:26,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 06:12:26,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:12:26,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:26,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:26,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1708983365, now seen corresponding path program 1 times [2023-09-01 06:12:26,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:26,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24901274] [2023-09-01 06:12:26,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:26,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:26,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:26,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24901274] [2023-09-01 06:12:26,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24901274] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:12:26,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178132901] [2023-09-01 06:12:26,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:26,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:26,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:26,195 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) [2023-09-01 06:12:26,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 06:12:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:26,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2023-09-01 06:12:26,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:12:26,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:26,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:12:26,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:26,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178132901] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:12:26,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:12:26,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-09-01 06:12:26,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612780952] [2023-09-01 06:12:26,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:12:26,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:26,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:26,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:26,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:26,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-09-01 06:12:26,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:26,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-09-01 06:12:26,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:26,483 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-09-01 06:12:26,483 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:12:26,483 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 282 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. [2023-09-01 06:12:26,484 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-09-01 06:12:26,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 96 flow [2023-09-01 06:12:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:12:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:12:26,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-09-01 06:12:26,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4435626102292769 [2023-09-01 06:12:26,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-09-01 06:12:26,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-09-01 06:12:26,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:26,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-09-01 06:12:26,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,492 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,492 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 44 flow. Second operand 6 states and 503 transitions. [2023-09-01 06:12:26,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 96 flow [2023-09-01 06:12:26,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:26,493 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-09-01 06:12:26,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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} [2023-09-01 06:12:26,494 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 6 predicate places. [2023-09-01 06:12:26,494 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-09-01 06:12:26,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:26,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:26,495 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-09-01 06:12:26,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-09-01 06:12:26,701 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 [2023-09-01 06:12:26,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:26,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1947830243, now seen corresponding path program 2 times [2023-09-01 06:12:26,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:26,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779100924] [2023-09-01 06:12:26,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:26,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:26,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:26,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779100924] [2023-09-01 06:12:26,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779100924] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:12:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874154954] [2023-09-01 06:12:26,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-01 06:12:26,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:26,824 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) [2023-09-01 06:12:26,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-01 06:12:26,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-09-01 06:12:26,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-01 06:12:26,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-01 06:12:26,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:12:26,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-09-01 06:12:27,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-01 06:12:27,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-09-01 06:12:27,030 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-09-01 06:12:27,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 06:12:27,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874154954] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:27,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 06:12:27,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2023-09-01 06:12:27,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109459435] [2023-09-01 06:12:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:27,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 06:12:27,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 06:12:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-09-01 06:12:27,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-09-01 06:12:27,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:27,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-09-01 06:12:27,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:27,138 INFO L130 PetriNetUnfolder]: 27/72 cut-off events. [2023-09-01 06:12:27,139 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 06:12:27,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 72 events. 27/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 189 event pairs, 12 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 160. Up to 43 conditions per place. [2023-09-01 06:12:27,140 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 21 selfloop transitions, 3 changer transitions 4/28 dead transitions. [2023-09-01 06:12:27,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 151 flow [2023-09-01 06:12:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:12:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:12:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-09-01 06:12:27,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2023-09-01 06:12:27,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-09-01 06:12:27,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-09-01 06:12:27,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:27,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-09-01 06:12:27,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,146 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,146 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 266 transitions. [2023-09-01 06:12:27,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 151 flow [2023-09-01 06:12:27,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 137 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:27,148 INFO L231 Difference]: Finished difference. Result has 31 places, 20 transitions, 78 flow [2023-09-01 06:12:27,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, 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=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2023-09-01 06:12:27,150 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 8 predicate places. [2023-09-01 06:12:27,150 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 78 flow [2023-09-01 06:12:27,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:27,151 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-09-01 06:12:27,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-01 06:12:27,357 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,SelfDestructingSolverStorable3 [2023-09-01 06:12:27,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:27,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1947828591, now seen corresponding path program 1 times [2023-09-01 06:12:27,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816333390] [2023-09-01 06:12:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:27,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:27,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816333390] [2023-09-01 06:12:27,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816333390] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 06:12:27,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255813629] [2023-09-01 06:12:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:27,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:27,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:12:27,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-01 06:12:27,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-01 06:12:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:27,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-01 06:12:27,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 06:12:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:27,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-09-01 06:12:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:12:27,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255813629] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-01 06:12:27,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-01 06:12:27,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-09-01 06:12:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032172313] [2023-09-01 06:12:27,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-01 06:12:27,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 06:12:27,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:27,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 06:12:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-09-01 06:12:27,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-09-01 06:12:27,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 78 flow. Second operand has 13 states, 13 states have (on average 81.3076923076923) internal successors, (1057), 13 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:27,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-09-01 06:12:27,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:27,791 INFO L130 PetriNetUnfolder]: 23/70 cut-off events. [2023-09-01 06:12:27,792 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2023-09-01 06:12:27,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 70 events. 23/70 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 22 based on Foata normal form. 6/64 useless extension candidates. Maximal degree in co-relation 182. Up to 61 conditions per place. [2023-09-01 06:12:27,793 INFO L137 encePairwiseOnDemand]: 186/189 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2023-09-01 06:12:27,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 166 flow [2023-09-01 06:12:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 06:12:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 06:12:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 992 transitions. [2023-09-01 06:12:27,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43738977072310403 [2023-09-01 06:12:27,796 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 992 transitions. [2023-09-01 06:12:27,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 992 transitions. [2023-09-01 06:12:27,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:27,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 992 transitions. [2023-09-01 06:12:27,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 82.66666666666667) internal successors, (992), 12 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,804 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 189.0) internal successors, (2457), 13 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,804 INFO L175 Difference]: Start difference. First operand has 31 places, 20 transitions, 78 flow. Second operand 12 states and 992 transitions. [2023-09-01 06:12:27,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 166 flow [2023-09-01 06:12:27,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 26 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:12:27,808 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 159 flow [2023-09-01 06:12:27,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=159, PETRI_PLACES=47, PETRI_TRANSITIONS=26} [2023-09-01 06:12:27,810 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 24 predicate places. [2023-09-01 06:12:27,810 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 159 flow [2023-09-01 06:12:27,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.3076923076923) internal successors, (1057), 13 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:27,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:27,811 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1] [2023-09-01 06:12:27,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-01 06:12:28,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 06:12:28,025 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:28,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1139831407, now seen corresponding path program 2 times [2023-09-01 06:12:28,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:28,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130120823] [2023-09-01 06:12:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:28,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:28,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:28,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130120823] [2023-09-01 06:12:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130120823] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 06:12:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453825889] [2023-09-01 06:12:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:28,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 06:12:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:28,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 06:12:28,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 06:12:28,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 189 [2023-09-01 06:12:28,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 159 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:28,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 189 [2023-09-01 06:12:28,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:28,359 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2023-09-01 06:12:28,360 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-09-01 06:12:28,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 58 events. 17/58 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 122 event pairs, 4 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 171. Up to 33 conditions per place. [2023-09-01 06:12:28,361 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 26 selfloop transitions, 5 changer transitions 2/33 dead transitions. [2023-09-01 06:12:28,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 33 transitions, 241 flow [2023-09-01 06:12:28,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 06:12:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 06:12:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 341 transitions. [2023-09-01 06:12:28,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45105820105820105 [2023-09-01 06:12:28,363 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 341 transitions. [2023-09-01 06:12:28,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 341 transitions. [2023-09-01 06:12:28,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:28,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 341 transitions. [2023-09-01 06:12:28,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,366 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,366 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 159 flow. Second operand 4 states and 341 transitions. [2023-09-01 06:12:28,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 33 transitions, 241 flow [2023-09-01 06:12:28,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 193 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:28,369 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 139 flow [2023-09-01 06:12:28,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2023-09-01 06:12:28,370 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 24 predicate places. [2023-09-01 06:12:28,370 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 139 flow [2023-09-01 06:12:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:28,371 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:28,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 06:12:28,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:28,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:28,372 INFO L85 PathProgramCache]: Analyzing trace with hash -755759592, now seen corresponding path program 1 times [2023-09-01 06:12:28,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:28,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646228541] [2023-09-01 06:12:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:28,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:28,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:28,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646228541] [2023-09-01 06:12:28,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646228541] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:28,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:28,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:28,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092695370] [2023-09-01 06:12:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:28,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:28,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:28,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 189 [2023-09-01 06:12:28,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 139 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:28,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 189 [2023-09-01 06:12:28,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:28,961 INFO L130 PetriNetUnfolder]: 21/68 cut-off events. [2023-09-01 06:12:28,961 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-09-01 06:12:28,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 68 events. 21/68 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 169 event pairs, 6 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 203. Up to 29 conditions per place. [2023-09-01 06:12:28,967 INFO L137 encePairwiseOnDemand]: 182/189 looper letters, 25 selfloop transitions, 10 changer transitions 7/42 dead transitions. [2023-09-01 06:12:28,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 42 transitions, 272 flow [2023-09-01 06:12:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:12:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:12:28,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 617 transitions. [2023-09-01 06:12:28,970 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080687830687831 [2023-09-01 06:12:28,970 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 617 transitions. [2023-09-01 06:12:28,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 617 transitions. [2023-09-01 06:12:28,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:28,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 617 transitions. [2023-09-01 06:12:28,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.125) internal successors, (617), 8 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,975 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,975 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 139 flow. Second operand 8 states and 617 transitions. [2023-09-01 06:12:28,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 42 transitions, 272 flow [2023-09-01 06:12:28,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 42 transitions, 258 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 06:12:28,981 INFO L231 Difference]: Finished difference. Result has 54 places, 32 transitions, 179 flow [2023-09-01 06:12:28,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=179, PETRI_PLACES=54, PETRI_TRANSITIONS=32} [2023-09-01 06:12:28,981 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 31 predicate places. [2023-09-01 06:12:28,982 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 179 flow [2023-09-01 06:12:28,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:28,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:28,984 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:28,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 06:12:28,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:28,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:28,985 INFO L85 PathProgramCache]: Analyzing trace with hash -755785633, now seen corresponding path program 1 times [2023-09-01 06:12:28,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243729032] [2023-09-01 06:12:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:29,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:29,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243729032] [2023-09-01 06:12:29,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243729032] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:29,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:29,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:29,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204501971] [2023-09-01 06:12:29,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:29,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:29,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:29,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:29,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 189 [2023-09-01 06:12:29,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:29,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 189 [2023-09-01 06:12:29,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:29,521 INFO L130 PetriNetUnfolder]: 15/58 cut-off events. [2023-09-01 06:12:29,521 INFO L131 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2023-09-01 06:12:29,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 58 events. 15/58 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 135 event pairs, 2 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 181. Up to 17 conditions per place. [2023-09-01 06:12:29,522 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 23 selfloop transitions, 6 changer transitions 6/35 dead transitions. [2023-09-01 06:12:29,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 35 transitions, 245 flow [2023-09-01 06:12:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 06:12:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 06:12:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 617 transitions. [2023-09-01 06:12:29,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080687830687831 [2023-09-01 06:12:29,524 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 617 transitions. [2023-09-01 06:12:29,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 617 transitions. [2023-09-01 06:12:29,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:29,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 617 transitions. [2023-09-01 06:12:29,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 77.125) internal successors, (617), 8 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,529 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 189.0) internal successors, (1701), 9 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,529 INFO L175 Difference]: Start difference. First operand has 54 places, 32 transitions, 179 flow. Second operand 8 states and 617 transitions. [2023-09-01 06:12:29,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 35 transitions, 245 flow [2023-09-01 06:12:29,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 35 transitions, 225 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:29,531 INFO L231 Difference]: Finished difference. Result has 55 places, 26 transitions, 136 flow [2023-09-01 06:12:29,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=26} [2023-09-01 06:12:29,532 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 32 predicate places. [2023-09-01 06:12:29,532 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 26 transitions, 136 flow [2023-09-01 06:12:29,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:29,533 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:29,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 06:12:29,533 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:29,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash -754341971, now seen corresponding path program 1 times [2023-09-01 06:12:29,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:29,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020527695] [2023-09-01 06:12:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:29,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:29,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020527695] [2023-09-01 06:12:29,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020527695] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:29,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:29,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:29,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537488223] [2023-09-01 06:12:29,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:29,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:29,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:29,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:29,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:29,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 189 [2023-09-01 06:12:29,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 26 transitions, 136 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:29,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:29,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 189 [2023-09-01 06:12:29,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:30,004 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2023-09-01 06:12:30,004 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-09-01 06:12:30,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 42 events. 9/42 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 4 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 132. Up to 16 conditions per place. [2023-09-01 06:12:30,005 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 23 selfloop transitions, 5 changer transitions 1/29 dead transitions. [2023-09-01 06:12:30,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 29 transitions, 198 flow [2023-09-01 06:12:30,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:12:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:12:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-09-01 06:12:30,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4038800705467372 [2023-09-01 06:12:30,007 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-09-01 06:12:30,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-09-01 06:12:30,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:30,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-09-01 06:12:30,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,011 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,011 INFO L175 Difference]: Start difference. First operand has 55 places, 26 transitions, 136 flow. Second operand 6 states and 458 transitions. [2023-09-01 06:12:30,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 29 transitions, 198 flow [2023-09-01 06:12:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 29 transitions, 182 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-09-01 06:12:30,013 INFO L231 Difference]: Finished difference. Result has 49 places, 25 transitions, 126 flow [2023-09-01 06:12:30,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=44, 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=126, PETRI_PLACES=49, PETRI_TRANSITIONS=25} [2023-09-01 06:12:30,014 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2023-09-01 06:12:30,014 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 25 transitions, 126 flow [2023-09-01 06:12:30,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:30,015 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:30,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 06:12:30,015 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:30,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:30,015 INFO L85 PathProgramCache]: Analyzing trace with hash -754341972, now seen corresponding path program 1 times [2023-09-01 06:12:30,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:30,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544261470] [2023-09-01 06:12:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:30,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:30,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:30,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544261470] [2023-09-01 06:12:30,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544261470] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:30,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367191963] [2023-09-01 06:12:30,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:30,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:30,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:30,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:30,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:30,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 189 [2023-09-01 06:12:30,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 25 transitions, 126 flow. Second operand has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:30,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 189 [2023-09-01 06:12:30,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:30,486 INFO L130 PetriNetUnfolder]: 7/36 cut-off events. [2023-09-01 06:12:30,486 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-09-01 06:12:30,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 36 events. 7/36 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 2 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 113. Up to 16 conditions per place. [2023-09-01 06:12:30,486 INFO L137 encePairwiseOnDemand]: 183/189 looper letters, 18 selfloop transitions, 2 changer transitions 7/27 dead transitions. [2023-09-01 06:12:30,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 182 flow [2023-09-01 06:12:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 06:12:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 06:12:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2023-09-01 06:12:30,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3945578231292517 [2023-09-01 06:12:30,489 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2023-09-01 06:12:30,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2023-09-01 06:12:30,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:30,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2023-09-01 06:12:30,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,493 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,493 INFO L175 Difference]: Start difference. First operand has 49 places, 25 transitions, 126 flow. Second operand 7 states and 522 transitions. [2023-09-01 06:12:30,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 182 flow [2023-09-01 06:12:30,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 27 transitions, 170 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-09-01 06:12:30,495 INFO L231 Difference]: Finished difference. Result has 49 places, 20 transitions, 100 flow [2023-09-01 06:12:30,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=20} [2023-09-01 06:12:30,495 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2023-09-01 06:12:30,496 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 20 transitions, 100 flow [2023-09-01 06:12:30,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 73.28571428571429) internal successors, (513), 7 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:12:30,496 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 06:12:30,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 06:12:30,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:12:30,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:12:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash -755785632, now seen corresponding path program 2 times [2023-09-01 06:12:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:12:30,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554728257] [2023-09-01 06:12:30,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:12:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:12:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:12:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-09-01 06:12:30,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:12:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554728257] [2023-09-01 06:12:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554728257] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:12:30,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:12:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 06:12:30,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939458577] [2023-09-01 06:12:30,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:12:30,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 06:12:30,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:12:30,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 06:12:30,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-09-01 06:12:30,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 189 [2023-09-01 06:12:30,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 20 transitions, 100 flow. Second operand has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:12:30,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 189 [2023-09-01 06:12:30,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:12:30,882 INFO L130 PetriNetUnfolder]: 2/21 cut-off events. [2023-09-01 06:12:30,883 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2023-09-01 06:12:30,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 21 events. 2/21 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 74. Up to 15 conditions per place. [2023-09-01 06:12:30,883 INFO L137 encePairwiseOnDemand]: 184/189 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-09-01 06:12:30,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 138 flow [2023-09-01 06:12:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 06:12:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 06:12:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2023-09-01 06:12:30,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4012345679012346 [2023-09-01 06:12:30,886 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 455 transitions. [2023-09-01 06:12:30,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions. [2023-09-01 06:12:30,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:12:30,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions. [2023-09-01 06:12:30,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,889 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,889 INFO L175 Difference]: Start difference. First operand has 49 places, 20 transitions, 100 flow. Second operand 6 states and 455 transitions. [2023-09-01 06:12:30,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 138 flow [2023-09-01 06:12:30,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 06:12:30,891 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-09-01 06:12:30,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, 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=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-09-01 06:12:30,892 INFO L281 CegarLoopForPetriNet]: 23 programPoint places, 18 predicate places. [2023-09-01 06:12:30,892 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-09-01 06:12:30,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.28571428571429) internal successors, (527), 7 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 06:12:30,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-09-01 06:12:30,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-09-01 06:12:30,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-09-01 06:12:30,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-09-01 06:12:30,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2023-09-01 06:12:30,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-09-01 06:12:30,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-09-01 06:12:30,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-09-01 06:12:30,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 06:12:30,898 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2023-09-01 06:12:30,903 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:12:30,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:12:30,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:12:30 BasicIcfg [2023-09-01 06:12:30,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:12:30,907 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:12:30,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:12:30,907 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:12:30,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:12:23" (3/4) ... [2023-09-01 06:12:30,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 06:12:30,914 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-09-01 06:12:30,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-09-01 06:12:30,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 06:12:30,919 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 06:12:30,950 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:12:30,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:12:30,951 INFO L158 Benchmark]: Toolchain (without parser) took 9070.01ms. Allocated memory was 79.7MB in the beginning and 172.0MB in the end (delta: 92.3MB). Free memory was 55.7MB in the beginning and 63.4MB in the end (delta: -7.8MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,952 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:30,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.32ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 47.0MB in the end (delta: 8.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.35ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 44.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,953 INFO L158 Benchmark]: Boogie Preprocessor took 58.21ms. Allocated memory is still 79.7MB. Free memory was 44.6MB in the beginning and 43.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:12:30,953 INFO L158 Benchmark]: RCFGBuilder took 439.14ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 43.0MB in the beginning and 68.5MB in the end (delta: -25.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,954 INFO L158 Benchmark]: TraceAbstraction took 7896.48ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 68.1MB in the beginning and 65.5MB in the end (delta: 2.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,954 INFO L158 Benchmark]: Witness Printer took 43.66ms. Allocated memory is still 172.0MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:12:30,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.32ms. Allocated memory is still 79.7MB. Free memory was 55.5MB in the beginning and 47.0MB in the end (delta: 8.5MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.35ms. Allocated memory is still 79.7MB. Free memory was 47.0MB in the beginning and 44.6MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.21ms. Allocated memory is still 79.7MB. Free memory was 44.6MB in the beginning and 43.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 439.14ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 43.0MB in the beginning and 68.5MB in the end (delta: -25.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7896.48ms. Allocated memory was 96.5MB in the beginning and 172.0MB in the end (delta: 75.5MB). Free memory was 68.1MB in the beginning and 65.5MB in the end (delta: 2.5MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 43.66ms. Allocated memory is still 172.0MB. Free memory was 65.5MB in the beginning and 63.4MB 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: 2.3s, 88 PlacesBefore, 23 PlacesAfterwards, 88 TransitionsBefore, 20 TransitionsAfterwards, 1254 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 100 TotalNumberOfCompositions, 1750 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1275, independent: 1192, independent conditional: 0, independent unconditional: 1192, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 742, independent: 720, independent conditional: 0, independent unconditional: 720, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1275, independent: 472, independent conditional: 0, independent unconditional: 472, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 742, unknown conditional: 0, unknown unconditional: 742] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 120 locations, 13 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: 7.7s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 755 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 531 mSDsluCounter, 301 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1448 IncrementalHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 26 mSDtfsCounter, 1448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=7, InterpolantAutomatonStates: 66, 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, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 158 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 2 NumberOfNonLiveVariables, 259 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 341/384 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 06:12:30,975 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